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Samarskaya VO, Spechenkova N, Ilina I, Suprunova TP, Kalinina NO, Love AJ, Taliansky ME. A Non-Canonical Pathway Induced by Externally Applied Virus-Specific dsRNA in Potato Plants. Int J Mol Sci 2023; 24:15769. [PMID: 37958754 PMCID: PMC10650801 DOI: 10.3390/ijms242115769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/21/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
The external application of double-stranded RNA (dsRNA) has recently been developed as a non-transgenic approach for crop protection against pests and pathogens. This novel and emerging approach has come to prominence due to its safety and environmental benefits. It is generally assumed that the mechanism of dsRNA-mediated antivirus RNA silencing is similar to that of natural RNA interference (RNAi)-based defence against RNA-containing viruses. There is, however, no direct evidence to support this idea. Here, we provide data on the high-throughput sequencing (HTS) analysis of small non-coding RNAs (sRNA) as hallmarks of RNAi induced by infection with the RNA-containing potato virus Y (PVY) and also by exogenous application of dsRNA which corresponds to a fragment of the PVY genome. Intriguingly, in contrast to PVY-induced production of discrete 21 and 22 nt sRNA species, the externally administered PVY dsRNA fragment led to generation of a non-canonical pool of sRNAs, which were present as ladders of ~18-30 nt in length; suggestive of an unexpected sRNA biogenesis pathway. Interestingly, these non-canonical sRNAs are unable to move systemically and also do not induce transitive amplification. These findings may have significant implications for further developments in dsRNA-mediated crop protection.
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Affiliation(s)
- Viktoriya O. Samarskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.S.); (I.I.); (N.O.K.)
| | - Nadezhda Spechenkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.S.); (I.I.); (N.O.K.)
| | - Irina Ilina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.S.); (I.I.); (N.O.K.)
| | | | - Natalia O. Kalinina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.S.); (I.I.); (N.O.K.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Andrew J. Love
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK;
| | - Michael E. Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.S.); (I.I.); (N.O.K.)
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK;
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Samarskaya VO, Ryabov EV, Gryzunov N, Spechenkova N, Kuznetsova M, Ilina I, Suprunova T, Taliansky ME, Ivanov PA, Kalinina NO. The Temporal and Geographical Dynamics of Potato Virus Y Diversity in Russia. Int J Mol Sci 2023; 24:14833. [PMID: 37834280 PMCID: PMC10573581 DOI: 10.3390/ijms241914833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/24/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Potato virus Y, an important viral pathogen of potato, has several genetic variants and geographic distributions which could be affected by environmental factors, aphid vectors, and reservoir plants. PVY is transmitted to virus-free potato plants by aphids and passed on to the next vegetative generations through tubers, but the effects of tuber transmission in PVY is largely unknown. By using high-throughput sequencing, we investigated PVY populations transmitted to potato plants by aphids in different climate zones of Russia, namely the Moscow and Astrakhan regions. We analyzed sprouts from the tubers produced by field-infected plants to investigate the impact of tuber transmission on PVY genetics. We found a significantly higher diversity of PVY isolates in the Astrakhan region, where winters are shorter and milder and summers are warmer compared to the Moscow region. While five PVY types, NTNa, NTNb, N:O, N-Wi, and SYR-I, were present in both regions, SYRI-II, SYRI-III, and 261-4 were only found in the Astrakhan region. All these recombinants were composed of the genome sections derived from PVY types O and N, but no full-length sequences of such types were present. The composition of the PVY variants in the tuber sprouts was not always the same as in their parental plants, suggesting that tuber transmission impacts PVY genetics.
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Affiliation(s)
- Viktoriya O. Samarskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
| | - Eugene V. Ryabov
- Department of Entomology, University of Maryland, College Park, MD 20742, USA;
| | - Nikita Gryzunov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Nadezhda Spechenkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
| | - Maria Kuznetsova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Irina Ilina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
| | | | - Michael E. Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
| | - Peter A. Ivanov
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Natalia O. Kalinina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.O.S.); (N.G.); (N.S.); (M.K.); (I.I.); (M.E.T.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
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3
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Glushkevich A, Spechenkova N, Fesenko I, Knyazev A, Samarskaya V, Kalinina NO, Taliansky M, Love AJ. Transcriptomic Reprogramming, Alternative Splicing and RNA Methylation in Potato ( Solanum tuberosum L.) Plants in Response to Potato Virus Y Infection. Plants (Basel) 2022; 11:plants11050635. [PMID: 35270104 PMCID: PMC8912425 DOI: 10.3390/plants11050635] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/09/2022] [Accepted: 02/22/2022] [Indexed: 05/05/2023]
Abstract
Plant-virus interactions are greatly influenced by environmental factors such as temperatures. In virus-infected plants, enhanced temperature is frequently associated with more severe symptoms and higher virus content. However, the mechanisms involved in controlling the temperature regulation of plant-virus interactions are poorly characterised. To elucidate these further, we analysed the responses of potato plants cv Chicago to infection by potato virus Y (PVY) at normal (22 °C) and elevated temperature (28 °C), the latter of which is known to significantly increase plant susceptibility to PVY. Using RNAseq analysis, we showed that single and combined PVY and heat-stress treatments caused dramatic changes in gene expression, affecting the transcription of both protein-coding and non-coding RNAs. Among the newly identified genes responsive to PVY infection, we found genes encoding enzymes involved in the catalysis of polyamine formation and poly ADP-ribosylation. We also identified a range of novel non-coding RNAs which were differentially produced in response to single or combined PVY and heat stress, that consisted of antisense RNAs and RNAs with miRNA binding sites. Finally, to gain more insights into the potential role of alternative splicing and epitranscriptomic RNA methylation during combined stress conditions, direct RNA nanopore sequencing was performed. Our findings offer insights for future studies of functional links between virus infections and transcriptome reprogramming, RNA methylation and alternative splicing.
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Affiliation(s)
- Anna Glushkevich
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (A.G.); (N.S.); (I.F.); (A.K.); (V.S.)
| | - Nadezhda Spechenkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (A.G.); (N.S.); (I.F.); (A.K.); (V.S.)
| | - Igor Fesenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (A.G.); (N.S.); (I.F.); (A.K.); (V.S.)
| | - Andrey Knyazev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (A.G.); (N.S.); (I.F.); (A.K.); (V.S.)
| | - Viktoriya Samarskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (A.G.); (N.S.); (I.F.); (A.K.); (V.S.)
| | - Natalia O. Kalinina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Michael Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (A.G.); (N.S.); (I.F.); (A.K.); (V.S.)
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
- Correspondence: (M.T.); (A.J.L.)
| | - Andrew J. Love
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
- Correspondence: (M.T.); (A.J.L.)
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Sorokin II, Vassilenko KS, Terenin IM, Kalinina NO, Agol VI, Dmitriev SE. Non-Canonical Translation Initiation Mechanisms Employed by Eukaryotic Viral mRNAs. Biochemistry (Mosc) 2021; 86:1060-1094. [PMID: 34565312 PMCID: PMC8436584 DOI: 10.1134/s0006297921090042] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 12/12/2022]
Abstract
Viruses exploit the translation machinery of an infected cell to synthesize their proteins. Therefore, viral mRNAs have to compete for ribosomes and translation factors with cellular mRNAs. To succeed, eukaryotic viruses adopt multiple strategies. One is to circumvent the need for m7G-cap through alternative instruments for ribosome recruitment. These include internal ribosome entry sites (IRESs), which make translation independent of the free 5' end, or cap-independent translational enhancers (CITEs), which promote initiation at the uncapped 5' end, even if located in 3' untranslated regions (3' UTRs). Even if a virus uses the canonical cap-dependent ribosome recruitment, it can still perturb conventional ribosomal scanning and start codon selection. The pressure for genome compression often gives rise to internal and overlapping open reading frames. Their translation is initiated through specific mechanisms, such as leaky scanning, 43S sliding, shunting, or coupled termination-reinitiation. Deviations from the canonical initiation reduce the dependence of viral mRNAs on translation initiation factors, thereby providing resistance to antiviral mechanisms and cellular stress responses. Moreover, viruses can gain advantage in a competition for the translational machinery by inactivating individual translational factors and/or replacing them with viral counterparts. Certain viruses even create specialized intracellular "translation factories", which spatially isolate the sites of their protein synthesis from cellular antiviral systems, and increase availability of translational components. However, these virus-specific mechanisms may become the Achilles' heel of a viral life cycle. Thus, better understanding of the unconventional mechanisms of viral mRNA translation initiation provides valuable insight for developing new approaches to antiviral therapy.
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Affiliation(s)
- Ivan I Sorokin
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russia
| | - Konstantin S Vassilenko
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
| | - Ilya M Terenin
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Natalia O Kalinina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - Vadim I Agol
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
- Institute of Poliomyelitis, Chumakov Center for Research and Development of Immunobiological Products, Russian Academy of Sciences, Moscow, 108819, Russia
| | - Sergey E Dmitriev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, 119234, Russia
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5
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Taliansky M, Samarskaya V, Zavriev SK, Fesenko I, Kalinina NO, Love AJ. RNA-Based Technologies for Engineering Plant Virus Resistance. Plants (Basel) 2021; 10:plants10010082. [PMID: 33401751 PMCID: PMC7824052 DOI: 10.3390/plants10010082] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/25/2020] [Accepted: 12/27/2020] [Indexed: 02/07/2023]
Abstract
In recent years, non-coding RNAs (ncRNAs) have gained unprecedented attention as new and crucial players in the regulation of numerous cellular processes and disease responses. In this review, we describe how diverse ncRNAs, including both small RNAs and long ncRNAs, may be used to engineer resistance against plant viruses. We discuss how double-stranded RNAs and small RNAs, such as artificial microRNAs and trans-acting small interfering RNAs, either produced in transgenic plants or delivered exogenously to non-transgenic plants, may constitute powerful RNA interference (RNAi)-based technology that can be exploited to control plant viruses. Additionally, we describe how RNA guided CRISPR-CAS gene-editing systems have been deployed to inhibit plant virus infections, and we provide a comparative analysis of RNAi approaches and CRISPR-Cas technology. The two main strategies for engineering virus resistance are also discussed, including direct targeting of viral DNA or RNA, or inactivation of plant host susceptibility genes. We also elaborate on the challenges that need to be overcome before such technologies can be broadly exploited for crop protection against viruses.
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Affiliation(s)
- Michael Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.S.); (S.K.Z.); (I.F.); (N.O.K.)
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
- Correspondence: (M.T.); (A.J.L.)
| | - Viktoria Samarskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.S.); (S.K.Z.); (I.F.); (N.O.K.)
| | - Sergey K. Zavriev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.S.); (S.K.Z.); (I.F.); (N.O.K.)
| | - Igor Fesenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.S.); (S.K.Z.); (I.F.); (N.O.K.)
| | - Natalia O. Kalinina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.S.); (S.K.Z.); (I.F.); (N.O.K.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia
| | - Andrew J. Love
- The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
- Correspondence: (M.T.); (A.J.L.)
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6
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Fesenko I, Spechenkova N, Mamaeva A, Makhotenko AV, Love AJ, Kalinina NO, Taliansky M. Role of the methionine cycle in the temperature-sensitive responses of potato plants to potato virus Y. Mol Plant Pathol 2021; 22:77-91. [PMID: 33146443 PMCID: PMC7749756 DOI: 10.1111/mpp.13009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 05/22/2023]
Abstract
Plant-virus interactions are greatly influenced by environmental factors such as temperatures. In virus-infected plants, enhanced temperature is frequently associated with more severe symptoms and higher virus content. However, the mechanisms involved in such regulatory effects remain largely uncharacterized. To provide more insight into the mechanisms whereby temperature regulates plant-virus interactions, we analysed changes in the proteome of potato cv. Chicago plants infected with potato virus Y (PVY) at normal (22 °C) and elevated temperature (28 °C), which is known to significantly increase plant susceptibility to the virus. One of the most intriguing findings is that the main enzymes of the methionine cycle (MTC) were down-regulated at the higher but not at normal temperatures. With good agreement, we found that higher temperature conditions triggered consistent and concerted changes in the level of MTC metabolites, suggesting that the enhanced susceptibility of potato plants to PVY at 28 °C may at least be partially orchestrated by the down-regulation of MTC enzymes and concomitant cycle perturbation. In line with this, foliar treatment of these plants with methionine restored accumulation of MTC metabolites and subverted the susceptibility to PVY at elevated temperature. These data are discussed in the context of the major function of the MTC in transmethylation processes.
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Affiliation(s)
- Igor Fesenko
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
| | - Nadezhda Spechenkova
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
| | - Anna Mamaeva
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
| | - Antonida V. Makhotenko
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
- Belozersky Institute of Physico‐chemical BiologyLomonosov Moscow State UniversityMoscowRussian Federation
| | | | - Natalia O. Kalinina
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
- Belozersky Institute of Physico‐chemical BiologyLomonosov Moscow State UniversityMoscowRussian Federation
| | - Michael Taliansky
- Shemyakin‐Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of SciencesMoscowRussian Federation
- The James Hutton InstituteInvergowrie, DundeeUK
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7
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Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated genes (Cas) is a prokaryotic adaptive immune system which has been reprogrammed into a precise, simple, and efficient gene targeting technology. This emerging technology is revolutionizing various areas of life sciences, medicine, and biotechnology and has raised significant interest among plant biologists, both in basic science and in plant protection and breeding. In this review, we describe the basic principles of CRISPR/Cas systems, and how they can be deployed to model plants and crops for the control, monitoring, and study of the mechanistic aspects of plant virus infections. We discuss how Cas endonucleases can be used to engineer plant virus resistance by directly targeting viral DNA or RNA, as well as how they can inactivate host susceptibility genes. Additionally, other applications of CRISPR/Cas in plant virology such as virus diagnostics and imaging are reviewed. The review also provides a systemic comparison between CRISPR/Cas technology and RNA interference approaches, the latter of which has also been used for development of virus-resistant plants. Finally, we outline challenges to be solved before CRISPR/Cas can produce virus-resistant crop plants which can be marketed.
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Affiliation(s)
- Natalia O Kalinina
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, Prospect Nauki 6, Pushchino, Moscow Region, 142290, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Andrey Khromov
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, Prospect Nauki 6, Pushchino, Moscow Region, 142290, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Andrew J Love
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, U.K
| | - Michael E Taliansky
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, Prospect Nauki 6, Pushchino, Moscow Region, 142290, Russia
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, U.K
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8
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Shaw J, Yu C, Makhotenko AV, Makarova SS, Love AJ, Kalinina NO, MacFarlane S, Chen J, Taliansky ME. Interaction of a plant virus protein with the signature Cajal body protein coilin facilitates salicylic acid-mediated plant defence responses. New Phytol 2019; 224:439-453. [PMID: 31215645 DOI: 10.1111/nph.15994] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/06/2019] [Indexed: 05/22/2023]
Abstract
In addition to well-known roles in RNA metabolism, the nucleolus and Cajal bodies (CBs), both located within the nucleus, are involved in plant responses to biotic and abiotic stress. Previously we showed that plants in which expression of the CB protein coilin is downregulated are more susceptible to certain viruses including tobacco rattle virus (TRV), suggesting a role of coilin in antiviral defence. Experiments with coilin-deficient plants and the deletion mutant of the TRV 16K protein showed that both 16K and coilin are required for restriction of systemic TRV infection. The potential mechanisms of coilin-mediated antiviral defence were elucidated via experiments involving co-immunoprecipitation, use of NahG transgenic plants deficient in salicylic acid (SA) accumulation, measurement of endogenous SA concentrations and assessment of SA-responsive gene expression. Here we show that TRV 16K interacts with and relocalizes coilin to the nucleolus. In wild-type plants these events are accompanied by activation of SA-responsive gene expression and restriction of TRV systemic infection. By contrast, viral systemic spread was enhanced in NahG plants, implicating SA in these processes. Our findings suggest that coilin is involved in plant defence, responding to TRV infection by recognition of the TRV-encoded 16K protein and activating SA-dependent defence pathways.
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Affiliation(s)
- Jane Shaw
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Chulang Yu
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
- State Key Laboratory for Quality and Safety of Agro-products, Institute of Plant Virology, Ningbo University, Ningbo, 117997, China
| | - Antonida V Makhotenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the RAS, Moscow, 117997, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow, 119991, Russia
| | - Svetlana S Makarova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the RAS, Moscow, 117997, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow, 119991, Russia
| | - Andrew J Love
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Natalia O Kalinina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the RAS, Moscow, 117997, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow, 119991, Russia
| | - Stuart MacFarlane
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Jianping Chen
- State Key Laboratory for Quality and Safety of Agro-products, Institute of Plant Virology, Ningbo University, Ningbo, 117997, China
| | - Michael E Taliansky
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the RAS, Moscow, 117997, Russia
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9
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Makhotenko AV, Khromov AV, Snigir EA, Makarova SS, Makarov VV, Suprunova TP, Kalinina NO, Taliansky ME. Functional Analysis of Coilin in Virus Resistance and Stress Tolerance of Potato Solanum tuberosum using CRISPR-Cas9 Editing. DOKL BIOCHEM BIOPHYS 2019; 484:88-91. [PMID: 31012023 DOI: 10.1134/s1607672919010241] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Indexed: 11/23/2022]
Abstract
The role of the nuclear protein coilin in the mechanisms of resistance of potato Solanum tuberosum cultivar Chicago to biotic and abiotic stresses was studied using the CRISPR-Cas9 technology. For the coilin gene editing, a complex consisting of the Cas9 endonuclease and a short guide RNA was immobilized on gold or chitosan microparticles and delivered into apical meristem cells by bioballistics or vacuum infiltration methods, respectively. Editing at least one allele of the coilin gene considerably increased the resistance of the edited lines to infection with the potato virus Y and their tolerance to salt and osmotic stress.
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Affiliation(s)
- A V Makhotenko
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia.,Moscow State University, 119234, Moscow, Russia
| | - A V Khromov
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia.,Moscow State University, 119234, Moscow, Russia
| | - E A Snigir
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia
| | - S S Makarova
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia.,Moscow State University, 119234, Moscow, Russia
| | - V V Makarov
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia
| | - T P Suprunova
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia
| | - N O Kalinina
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia. .,Moscow State University, 119234, Moscow, Russia.
| | - M E Taliansky
- Doka Gene Technologies Ltd, 141880, Rogachevo, Moscow oblast, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia
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10
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Sinitsyna OV, Makarov VV, McGeachy K, Bukharova T, Whale E, Hepworth D, Yaminsky IV, Kalinina NO, Taliansky ME, Love AJ. Virus-Like Particle Facilitated Deposition of Hydroxyapatite Bone Mineral on Nanocellulose after Exposure to Phosphate and Calcium Precursors. Int J Mol Sci 2019; 20:E1814. [PMID: 31013736 PMCID: PMC6515374 DOI: 10.3390/ijms20081814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/04/2019] [Accepted: 04/09/2019] [Indexed: 11/28/2022] Open
Abstract
We produced and isolated tobacco mosaic virus-like particles (TMV VLPs) from bacteria, which are devoid of infectious genomes, and found that they have a net negative charge and can bind calcium ions. Moreover, we showed that the TMV VLPs could associate strongly with nanocellulose slurry after a simple mixing step. We sequentially exposed nanocellulose alone or slurries mixed with the TMV VLPs to calcium and phosphate salts and utilized physicochemical approaches to demonstrate that bone mineral (hydroxyapatite) was deposited only in nanocellulose mixed with the TMV VLPs. The TMV VLPs confer mineralization properties to the nanocellulose for the generation of new composite materials.
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Affiliation(s)
- Olga V Sinitsyna
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow 119991, Russia.
| | - Valentine V Makarov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119991, Russia.
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 119991, Russia.
| | - Kara McGeachy
- Cell and Molecular Sciences, The James Hutton Institute, Dundee DD2 5DA, UK.
| | - Tatyana Bukharova
- Cell and Molecular Sciences, The James Hutton Institute, Dundee DD2 5DA, UK.
| | - Eric Whale
- CelluComp Ltd., Unit 3, West Dock, Harbour Place, Burntisland KY3 9DW, UK.
| | - David Hepworth
- CelluComp Ltd., Unit 3, West Dock, Harbour Place, Burntisland KY3 9DW, UK.
| | - Igor V Yaminsky
- Physical Faculty, Lomonosov Moscow State University, Moscow 119991, Russia.
| | - Natalia O Kalinina
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119991, Russia.
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 119991, Russia.
| | - Michael E Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 119991, Russia.
- Cell and Molecular Sciences, The James Hutton Institute, Dundee DD2 5DA, UK.
| | - Andrew J Love
- Cell and Molecular Sciences, The James Hutton Institute, Dundee DD2 5DA, UK.
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11
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Makarova SS, Khromov AV, Spechenkova NA, Taliansky ME, Kalinina NO. Application of the CRISPR/Cas System for Generation of Pathogen-Resistant Plants. Biochemistry (Mosc) 2019; 83:1552-1562. [PMID: 30878030 DOI: 10.1134/s0006297918120131] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The use of the CRISPR/Cas9 prokaryotic adaptive immune system has led to a breakthrough in targeted genome editing in eukaryotes. The CRISPR/Cas technology allows to generate organisms with desirable characteristics by introducing deletions/insertions into selected genome loci resulting in the knockout or modification of target genes. This review focuses on the current state of the CRISPR/Cas use for the generation of plants resistant to viruses, bacteria, and parasitic fungi. Resistance to DNA- and RNA-containing viruses is usually provided by expression in transgenic plants of the Cas endonuclease gene and short guide RNAs (sgRNAs) targeting certain sites in the viral or the host plant genomes to ensure either direct cleavage of the viral genome or modification of the plant host genome in order to decrease the efficiency of virus replication. Editing of plant genes involved in the defense response to pathogens increases plants resistance to bacteria and pathogenic fungi. The review explores strategies and prospects of the development of pathogen-resistant plants with a focus on the generation of non-transgenic (non-genetically modified) organisms, in particular, by using plasmid (DNA)-free systems for delivery of the Cas/sgRNA editing complex into plant cells.
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Affiliation(s)
- S S Makarova
- Doka-Gene Technology Ltd., 141880 Rogachevo, Moscow Region, Russia.,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - A V Khromov
- Doka-Gene Technology Ltd., 141880 Rogachevo, Moscow Region, Russia.,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - N A Spechenkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - M E Taliansky
- Doka-Gene Technology Ltd., 141880 Rogachevo, Moscow Region, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - N O Kalinina
- Doka-Gene Technology Ltd., 141880 Rogachevo, Moscow Region, Russia. .,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
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12
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Makarova SS, Makhotenko AV, Khromov AV, Skurat EV, Solovyev AG, Makarov VV, Kalinina NO. Non-structural Functions of Hordeivirus Capsid Protein Identified in Plants Infected by a Chimeric Tobamovirus. Biochemistry (Mosc) 2018; 83:1543-1551. [PMID: 30878029 DOI: 10.1134/s000629791812012x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/12/2018] [Indexed: 11/23/2022]
Abstract
Capsid proteins (CPs) of (+)RNA-containing plant viruses are multifunctional proteins involved in many stages of viral infection cycle, in addition to their main function of virus capsid formation. For example, the tobamoviral CP ensures virus systemic transport in plants and defines the virus-host interactions, thereby influencing the virus host range, virus infectivity, pathogenicity, and manifestation of infection symptoms. Hordeiviruses and tobamoviruses belong to the Virgaviridae family and have rod-shaped virions with a helical symmetry; their CPs are similar in structure. However, no non-structural functions of hordeiviral CPs have been described so far. In this study, we assayed possible non-structural functions of CP from the barley stripe mosaic virus (BSMV) (hordeivirus). To do this, the genome of turnip vein clearing virus (TVCV) (tobamovirus) was modified by substituting the TVCV CP gene with the BSMV CP gene or its mutants. We found that BSMV CP efficiently replaced TVCV CP at all stages of viral infection. In particular, BSMV CP performed the role of tobamoviral CP in the long-distance transport of the chimeric virus, acted as a hypersensitive response elicitor, and served as a pathogenicity determinant that influenced the symptoms of the viral infection. The chimeric tobamovirus coding for the C-terminally truncated BSMV CP displayed an increased infectivity and was transported in plants in a form of atypical virions (ribonucleoprotein complexes).
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Affiliation(s)
- S S Makarova
- Lomonosov Moscow State University, Biological Faculty, Moscow, 119991, Russia
| | - A V Makhotenko
- Lomonosov Moscow State University, Biological Faculty, Moscow, 119991, Russia
| | - A V Khromov
- Lomonosov Moscow State University, Biological Faculty, Moscow, 119991, Russia
| | - E V Skurat
- Lomonosov Moscow State University, Biological Faculty, Moscow, 119991, Russia
| | - A G Solovyev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.
- All-Russia Research Institute of Agricultural Biotechnology, Moscow, 127550, Russia
| | - V V Makarov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - N O Kalinina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.
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13
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Makarova S, Makhotenko A, Spechenkova N, Love AJ, Kalinina NO, Taliansky M. Interactive Responses of Potato ( Solanum tuberosum L.) Plants to Heat Stress and Infection With Potato Virus Y. Front Microbiol 2018; 9:2582. [PMID: 30425697 PMCID: PMC6218853 DOI: 10.3389/fmicb.2018.02582] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/10/2018] [Indexed: 11/13/2022] Open
Abstract
Potato (Solanum tuberosum) plants are exposed to diverse environmental stresses, which may modulate plant-pathogen interactions, and potentially cause further decreases in crop productivity. To provide new insights into interactive molecular responses to heat stress combined with virus infection in potato, we analyzed expression of genes encoding pathogenesis-related (PR) proteins [markers of salicylic acid (SA)-mediated plant defense] and heat shock proteins (HSPs), in two potato cultivars that differ in tolerance to elevated temperatures and in susceptibility to potato virus Y (PVY). In plants of cv. Chicago (thermosensitive and PVY-susceptible), increased temperature reduced PR gene expression and this correlated with enhancement of PVY infection (virus accumulation and symptom production). In contrast, with cv. Gala (thermotolerant and PVY resistant), which displayed a greater increase in PR gene expression in response to PVY infection, temperature affected neither PR transcript levels nor virus accumulation. HSP genes were induced by elevated temperature in both cultivars but to higher levels in the thermotolerant (Gala) cultivar. PVY infection did not alter expression of HSP genes in the Gala cultivar (possibly because of the low level of virus accumulation) but did induce expression of HSP70 and HSP90 in the susceptible cultivar (Chicago). These findings suggest that responses to heat stress and PVY infection in potato have some common underlying mechanisms, which may be integrated in a specific consolidated network that controls plant sensitivity to multiple stresses in a cultivar-specific manner. We also found that the SA pre-treatment subverted the sensitive combined (heat and PVY) stress phenotype in Chicago, implicating SA as a key component of such a regulatory network.
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Affiliation(s)
- Svetlana Makarova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Antonida Makhotenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Nadezhda Spechenkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | | | - Natalia O. Kalinina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Michael Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- The James Hutton Institute, Dundee, United Kingdom
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14
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Khromov AV, Gushchin VA, Timerbaev VI, Kalinina NO, Taliansky ME, Makarov VV. Guide RNA Design for CRISPR/Cas9-Mediated Potato Genome Editing. DOKL BIOCHEM BIOPHYS 2018; 479:90-94. [PMID: 29779105 DOI: 10.1134/s1607672918020084] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Indexed: 12/26/2022]
Abstract
The activity of the pool of sgRNA molecules designed for different regions of potato coilin and phytoene desaturase genes was compared in vitro. Due to the presence of nucleotides unpaired with DNA, sgRNA is able not only to inhibit but also to stimulate the activity of the Cas9-sgRNA complex in vitro. Although the first six nucleotides located in the DNA substrate proximally to the PAM site at the 3' end are the binding sites for cas9, they had no significant effect on the activity of the Cas9-sgRNA complex.
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Affiliation(s)
- A V Khromov
- OOO Doka Gene Technologies, Rogachevo, Moscow oblast, 141880, Russia
- Moscow State University, Moscow, 119991, Russia
| | - V A Gushchin
- OOO Doka Gene Technologies, Rogachevo, Moscow oblast, 141880, Russia
- Moscow State University, Moscow, 119991, Russia
| | - V I Timerbaev
- OOO Doka Gene Technologies, Rogachevo, Moscow oblast, 141880, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - N O Kalinina
- OOO Doka Gene Technologies, Rogachevo, Moscow oblast, 141880, Russia
- Moscow State University, Moscow, 119991, Russia
| | - M E Taliansky
- OOO Doka Gene Technologies, Rogachevo, Moscow oblast, 141880, Russia
- The James Hutton Institute, Dundee, DD2 5DA, UK
| | - V V Makarov
- OOO Doka Gene Technologies, Rogachevo, Moscow oblast, 141880, Russia.
- Moscow State University, Moscow, 119991, Russia.
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15
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Kalinina NO, Makarova S, Makhotenko A, Love AJ, Taliansky M. The Multiple Functions of the Nucleolus in Plant Development, Disease and Stress Responses. Front Plant Sci 2018; 9:132. [PMID: 29479362 PMCID: PMC5811523 DOI: 10.3389/fpls.2018.00132] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/23/2018] [Indexed: 05/18/2023]
Abstract
The nucleolus is the most conspicuous domain in the eukaryotic cell nucleus, whose main function is ribosomal RNA (rRNA) synthesis and ribosome biogenesis. However, there is growing evidence that the nucleolus is also implicated in many other aspects of cell biology, such as regulation of cell cycle, growth and development, senescence, telomerase activity, gene silencing, responses to biotic and abiotic stresses. In the first part of the review, we briefly assess the traditional roles of the plant nucleolus in rRNA synthesis and ribosome biogenesis as well as possible functions in other RNA regulatory pathways such as splicing, nonsense-mediated mRNA decay and RNA silencing. In the second part of the review we summarize recent progress and discuss already known and new hypothetical roles of the nucleolus in plant growth and development. In addition, this part will highlight studies showing new nucleolar functions involved in responses to pathogen attack and abiotic stress. Cross-talk between the nucleolus and Cajal bodies is also discussed in the context of their association with poly(ADP ribose)polymerase (PARP), which is known to play a crucial role in various physiological processes including growth, development and responses to biotic and abiotic stresses.
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Affiliation(s)
- Natalia O. Kalinina
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- Natalia O. Kalinina
| | - Svetlana Makarova
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Antonida Makhotenko
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | | | - Michael Taliansky
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- The James Hutton Institute, Dundee, United Kingdom
- *Correspondence: Michael Taliansky
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16
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Makhotenko AV, Snigir EA, Kalinina NO, Makarov VV, Taliansky ME. Data on a delivery of biomolecules into Nicothiana benthamiana leaves using different nanoparticles. Data Brief 2017; 16:1034-1037. [PMID: 29322084 PMCID: PMC5752087 DOI: 10.1016/j.dib.2017.12.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 12/03/2017] [Accepted: 12/12/2017] [Indexed: 12/04/2022] Open
Abstract
Nanoparticles (NPs) have a number of unique properties associated with their ultrasmall size and exhibit many advantages compared with existing plant biotechnology platforms for delivery of proteins, RNA and DNA of various sizes into the plant cells (Arruda et al., 2015; Silva et al., 2010; Martin-Ortigosa et al., 2014; Mitter et al., 2017) [1], [2], [3], [4]. The data presented in this article demonstrate a delivery of biomolecules into Nicotiana benthamiana plant leaves using various types of NPs including gold, iron oxide and chitosan NPs and methods of biolistic bombardment and infiltration. The data demonstrate physical characteristics of NPs coated with fluorescently labeled protein and small RNA (size and zeta-potential) and visualization of nanocomplexes delivery into cells of N. benthamiana leaves by fluorescence microscopy.
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Affiliation(s)
- Antonida V Makhotenko
- DokaGene Ltd., Rogachevo, Moscow Region, Russia.,Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | | | - Natalia O Kalinina
- DokaGene Ltd., Rogachevo, Moscow Region, Russia.,Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Valentin V Makarov
- DokaGene Ltd., Rogachevo, Moscow Region, Russia.,Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Michael E Taliansky
- DokaGene Ltd., Rogachevo, Moscow Region, Russia.,James Hutton Institute, Invergowrie, DD2 5DA Dundee, UK
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17
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Semenyuk PI, Karpova OV, Ksenofontov AL, Kalinina NO, Dobrov EN, Makarov VV. Structural Properties of Potexvirus Coat Proteins Detected by Optical Methods. Biochemistry (Mosc) 2016; 81:1522-1530. [PMID: 28259129 DOI: 10.1134/s0006297916120130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
It has been shown by X-ray analysis that cores of coat proteins (CPs) from three potexviruses, flexible helical RNA-containing plant viruses, have similar α-helical structure. However, this similarity cannot explain structural lability of potexvirus virions, which is believed to determine their biological activity. Here, we used circular dichroism (CD) spectroscopy in the far UV region to compare optical properties of CPs from three potexviruses with the same morphology and similar structure. CPs from Alternanthera mosaic virus (AltMV), potato aucuba mosaic virus (PAMV), and potato virus X (PVX) have been studied in a free state and in virions. The CD spectrum of AltMV virions was similar to the previously obtained CD spectrum of papaya mosaic virus (PapMV) virions, but differed significantly from the CD spectrum of PAMV virions. The CD spectrum of PAMV virions resembled in its basic characteristics the CD spectrum of PVX virions characterized by molar ellipticity that is abnormally low for α-helical proteins. Homology modeling of the CP structures in AltMV, PAMV, and PVX virions was based on the known high-resolution structures of CPs from papaya mosaic virus and bamboo mosaic virus and confirmed that the structures of the CP cores in all three viruses were nearly identical. Comparison of amino acid sequences of different potexvirus CPs and prediction of unstructured regions in these proteins revealed a possible correlation between specific features in the virion CD spectra and the presence of disordered N-terminal segments in the CPs.
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Affiliation(s)
- P I Semenyuk
- Lomonosov Moscow State University, Belozersky Institute of Physico-Chemical Biology, Moscow, 119991, Russia.
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18
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Abstract
The main function of virus coat protein is formation of the capsid that protects the virus genome against degradation. However, besides the structural function, coat proteins have many additional important activities in the infection cycle of the virus and in the defense response of host plants to viral infection. This review focuses on noncanonical functions of coat proteins of helical RNA-containing plant viruses with positive genome polarity. Analysis of data on the structural organization of coat proteins of helical viruses has demonstrated that the presence of intrinsically disordered regions within the protein structure plays an important role in implementation of nonstructural functions and largely determines the multifunctionality of coat proteins.
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Affiliation(s)
- V V Makarov
- Lomonosov Moscow State University, Belozersky Institute of Physico-Chemical Biology, Moscow, 119991, Russia.
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19
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Abstract
Cajal bodies (CBs) are distinct sub-nuclear structures that are present in eukaryotic living cells and are often associated with the nucleolus. CBs play important roles in RNA metabolism and formation of RNPs involved in transcription, splicing, ribosome biogenesis, and telomere maintenance. Besides these primary roles, CBs appear to be involved in additional functions that may not be directly related to RNA metabolism and RNP biogenesis. In this review, we assess possible roles of plant CBs in RNA regulatory pathways such as nonsense-mediated mRNA decay and RNA silencing. We also summarize recent progress and discuss new non-canonical functions of plant CBs in responses to stress and disease. It is hypothesized that CBs can regulate these responses via their interaction with poly(ADP ribose)polymerase (PARP), which is known to play an important role in various physiological processes including responses to biotic and abiotic stresses. It is suggested that CBs and their components modify PARP activities and functions.
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Affiliation(s)
- Andrew J Love
- a Cell and Molecular Sciences , James Hutton Institute , Invergowrie, Dundee , UK
| | - Chulang Yu
- b State Key Laboratory Breeding Base for Sustainable Pest and Disease Control, Key Laboratory of Biotechnology in Plant Protection of MOA and Zhejiang Province , Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences , Hangzhou , China
| | - Natalia V Petukhova
- a Cell and Molecular Sciences , James Hutton Institute , Invergowrie, Dundee , UK
| | - Natalia O Kalinina
- c A.N. Belozersky Institute of Physico-Chemical Biology , Lomonosov Moscow State University , Leninskie Gory, Moscow , Russia
| | - Jianping Chen
- b State Key Laboratory Breeding Base for Sustainable Pest and Disease Control, Key Laboratory of Biotechnology in Plant Protection of MOA and Zhejiang Province , Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences , Hangzhou , China
| | - Michael E Taliansky
- a Cell and Molecular Sciences , James Hutton Institute , Invergowrie, Dundee , UK.,b State Key Laboratory Breeding Base for Sustainable Pest and Disease Control, Key Laboratory of Biotechnology in Plant Protection of MOA and Zhejiang Province , Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences , Hangzhou , China
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20
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Makarov VV, Makarova SS, Kalinina NO. Data on structural transitions in domains of hordeivirus TGB1 protein forming ribonucleoprotein complex. Data Brief 2016; 8:258-61. [PMID: 27331098 PMCID: PMC4905938 DOI: 10.1016/j.dib.2016.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/01/2016] [Accepted: 05/08/2016] [Indexed: 11/05/2022] Open
Abstract
This data article is related to the research article entitled “in vitro properties of hordeivirus TGB1 protein forming ribonucleoprotein complexes” (Makarov et al., 2015 [1]), demonstrating that upon incubation with viral RNA the poa semilatent hordeivirus (PSLV) TGB1 protein (the movement 63 K protein encoded by the first gene of the triple gene block) in vitro forms RNP structures resembling filamentous virus-like particles and its internal domain (ID) performs a major structural role in this process. This article reports the additional results on the structural lability of ID and the structural transitions in the C-terminal NTPase/helicase domain (HELD) induced by interaction with tRNA and phosphorylation.
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Affiliation(s)
- Valentin V Makarov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Svetlana S Makarova
- Department of Virology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Natalia O Kalinina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
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21
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Love AJ, Makarov VV, Sinitsyna OV, Shaw J, Yaminsky IV, Kalinina NO, Taliansky ME. A Genetically Modified Tobacco Mosaic Virus that can Produce Gold Nanoparticles from a Metal Salt Precursor. Front Plant Sci 2015; 6:984. [PMID: 26617624 PMCID: PMC4639705 DOI: 10.3389/fpls.2015.00984] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 10/26/2015] [Indexed: 05/26/2023]
Abstract
We genetically modified tobacco mosaic virus (TMV) to surface display a characterized peptide with potent metal ion binding and reducing capacity (MBP TMV), and demonstrate that unlike wild type TMV, this construct can lead to the formation of discrete 10-40 nm gold nanoparticles when mixed with 3 mM potassium tetrachloroaurate. Using a variety of analytical physicochemical approaches it was found that these nanoparticles were crystalline in nature and stable. Given that the MBP TMV can produce metal nanomaterials in the absence of chemical reductants, it may have utility in the green production of metal nanomaterials.
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Affiliation(s)
- Andrew J. Love
- Cell and Molecular Sciences, The James Hutton InstituteDundee, UK
| | - Valentine V. Makarov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State UniversityMoscow, Russia
| | | | - Jane Shaw
- Cell and Molecular Sciences, The James Hutton InstituteDundee, UK
| | - Igor V. Yaminsky
- Physical Faculty, Lomonosov Moscow State UniversityMoscow, Russia
| | - Natalia O. Kalinina
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State UniversityMoscow, Russia
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22
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Makarov VV, Makarova SS, Makhotenko AV, Obraztsova EA, Kalinina NO. In vitro properties of hordeivirus TGB1 protein forming ribonucleoprotein complexes. J Gen Virol 2015; 96:3422-3431. [PMID: 26276346 DOI: 10.1099/jgv.0.000252] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Hordeivirus movement protein encoded by the first gene of the triple gene block (TGB1 protein, TGBp1) interacts in vivo with viral genomic and subgenomic RNAs to form ribonucleoprotein (RNP) particles that are considered to be a form of viral genome (non-virion transport form) capable of cell-to-cell and long-distance transport in infected plants. The structures of these RNPs have not been elucidated. The poa semilatent virus (PSLV) TGBp1 contains a structured C-terminal NTPase/helicase domain and an N-terminal extension region consisting of two domains - a completely intrinsically disordered extreme N-terminal domain and an internal domain (ID) with structure resembling a partially disordered molten globule. Here, we characterized the structures assembled in vitro by the full-length PSLV TGBp1 alone or in the presence of viral RNA. The PSLV TGBp1 was capable of multimerization and self-assembly into extended high-molecular-mass complexes. These complexes disassembled to apparent monomers upon incubation with ATP. Upon incubation with viral RNA, the PSLV TGBp1 in vitro formed RNP structures that appeared as filamentous particles resembling virions of helical filamentous plant viruses in morphology and dimensions. By comparing the biophysical characteristics of PSLV TGBp1 and its domains in the presence and absence of RNA, we show that the ID plays the main structural role in the self-interactions and RNA interactions of TGBp1 leading to the assembly of virus-like RNP particles.
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Affiliation(s)
- Valentin V Makarov
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Svetlana S Makarova
- Department of Biology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Antonida V Makhotenko
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
| | - Ekaterina A Obraztsova
- M. M. Shemyakin and Yu. A. Ovchinnikov Bioorganic Chemistry Institute, Miklukho-Maklaya str. 16/10, Moscow 117997, Russia
| | - Natalia O Kalinina
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninsky Gory, Moscow 119992, Russia
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Makarov VV, Makarova SS, Love AJ, Sinitsyna OV, Dudnik AO, Yaminsky IV, Taliansky ME, Kalinina NO. Biosynthesis of stable iron oxide nanoparticles in aqueous extracts of Hordeum vulgare and Rumex acetosa plants. Langmuir 2014; 30:5982-8. [PMID: 24784347 DOI: 10.1021/la5011924] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We report the synthesis and characterization of amorphous iron oxide nanoparticles from iron salts in aqueous extracts of monocotyledonous (Hordeum vulgare) and dicotyledonous (Rumex acetosa) plants. The nanoparticles were characterized by TEM, absorbance spectroscopy, SAED, EELS, XPS, and DLS methods and were shown to contain mainly iron oxide and iron oxohydroxide. H. vulgare extracts produced amorphous iron oxide nanoparticles with diameters of up to 30 nm. These iron nanoparticles are intrinsically unstable and prone to aggregation; however, we rendered them stable in the long term by addition of 40 mM citrate buffer pH 3.0. In contrast, amorphous iron oxide nanoparticles (diameters of 10-40 nm) produced using R. acetosa extracts are highly stable. The total protein content and antioxidant capacity are similar for both extracts, but pH values differ (H. vulgare pH 5.8 vs R. acetosa pH 3.7). We suggest that the presence of organic acids (such oxalic or citric acids) plays an important role in the stabilization of iron nanoparticles, and that plants containing such constituents may be more efficacious for the green synthesis of iron nanoparticles.
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Affiliation(s)
- Valentin V Makarov
- Belozersky Institute of Physico-Chemical Biology and ‡Biological Faculty, ∥Chemical Faculty, and ⊥Physical Faculty, Lomonosov Moscow State University , 119992 Moscow, Russia
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Shaw J, Love AJ, Makarova SS, Kalinina NO, Harrison BD, Taliansky ME. Coilin, the signature protein of Cajal bodies, differentially modulates the interactions of plants with viruses in widely different taxa. Nucleus 2014; 5:85-94. [PMID: 24637832 PMCID: PMC4028359 DOI: 10.4161/nucl.28315] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 02/18/2014] [Accepted: 02/21/2014] [Indexed: 12/28/2022] Open
Abstract
Cajal bodies (CBs) are distinct nuclear bodies physically and functionally associated with the nucleolus. In addition to their traditional function in coordinating maturation of certain nuclear RNAs, CBs participate in cell cycle regulation, development, and regulation of stress responses. A key "signature" component of CBs is coilin, the scaffolding protein essential for CB formation and function. Using an RNA silencing (loss-of-function) approach, we describe here new phenomena whereby coilin also affects, directly or indirectly, a variety of interactions between host plants and viruses that have RNA or DNA genomes. Moreover, the effects of coilin on these interactions are manifested differently: coilin contributes to plant defense against tobacco rattle virus (tobravirus), tomato black ring virus (nepovirus), barley stripe mosaic virus (hordeivirus), and tomato golden mosaic virus (begomovirus). In contrast, with potato virus Y (potyvirus) and turnip vein clearing virus (tobamovirus), coilin serves to increase virus pathogenicity. These findings show that interactions with coilin (or CBs) may involve diverse mechanisms with different viruses and that these mechanisms act at different phases of virus infection. Thus, coilin (CBs) has novel, unexpected natural functions that may be recruited or subverted by plant viruses for their own needs or, in contrast, are involved in plant defense mechanisms that suppress host susceptibility to the viruses.
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Affiliation(s)
- Jane Shaw
- Cell and Molecular Sciences; The James Hutton Institute; Dundee, UK
| | - Andrew J Love
- Cell and Molecular Sciences; The James Hutton Institute; Dundee, UK
| | - Svetlana S Makarova
- AN Belozersky Institute of Physico-Chemical Biology; Moscow State University; Moscow, Russia
| | - Natalia O Kalinina
- AN Belozersky Institute of Physico-Chemical Biology; Moscow State University; Moscow, Russia
| | - Bryan D Harrison
- Cell and Molecular Sciences; The James Hutton Institute; Dundee, UK
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Love AJ, Makarov V, Yaminsky I, Kalinina NO, Taliansky ME. The use of tobacco mosaic virus and cowpea mosaic virus for the production of novel metal nanomaterials. Virology 2013; 449:133-9. [PMID: 24418546 DOI: 10.1016/j.virol.2013.11.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/15/2013] [Accepted: 11/02/2013] [Indexed: 12/24/2022]
Abstract
Due to the nanoscale size and the strictly controlled and consistent morphologies of viruses, there has been a recent interest in utilizing them in nanotechnology. The structure, surface chemistries and physical properties of many viruses have been well elucidated, which have allowed identification of regions of their capsids which can be modified either chemically or genetically for nanotechnological uses. In this review we focus on the use of such modifications for the functionalization and production of viruses and empty viral capsids that can be readily decorated with metals in a highly tuned manner. In particular, we discuss the use of two plant viruses (Cowpea mosaic virus and Tobacco mosaic virus) which have been extensively used for production of novel metal nanoparticles (<100nm), composites and building blocks for 2D and 3D materials, and illustrate their applications.
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Affiliation(s)
- Andrew J Love
- The James Hutton Institute, Invergowrie, Dundee, United Kingdom.
| | - Valentine Makarov
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | - Igor Yaminsky
- Physical Faculty of Moscow State University, Moscow, Russia
| | - Natalia O Kalinina
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
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Makarov VV, Iconnikova AY, Guseinov MA, Vishnichenko VK, Kalinina NO. In vitro phosphorylation of the N-terminal half of hordeivirus movement protein. Biochemistry (Mosc) 2012; 77:1072-81. [PMID: 23157268 DOI: 10.1134/s0006297912090155] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The N-terminal half of TGB1 movement protein of poa semilatent hordeivirus, which forms a ribonucleoprotein complex involved in movement of the viral genome in the plant, and its two domains, NTD and ID, are phosphorylated in vitro by a fraction enriched in cell walls from Nicotiana benthamiana. Using a set of protein kinase inhibitors with different specificities, it was found that enzymes possessing activities of casein kinase 1, protein kinase A, and protein kinase C are involved in phosphorylation. Commercial preparations of protein kinases A and C are able to phosphorylate in vitro recombinant proteins corresponding to the N-terminal half of the protein and its domains NTD and ID. Phosphorylation of the NTD has no effect on the efficiency and character of its binding to RNA. However, phosphorylation of the ID leads to a decrease in its RNA-binding activity and in the ability for homological protein-protein interactions.
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Affiliation(s)
- V V Makarov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
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Semashko MA, Rakitina DV, González I, Canto T, Kalinina NO, Taliansky ME. Movement protein of hordeivirus interacts in vitro and in vivo with coilin, a major structural protein of Cajal bodies. DOKL BIOCHEM BIOPHYS 2012; 442:57-60. [PMID: 22419098 DOI: 10.1134/s1607672912010164] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Indexed: 12/18/2022]
Affiliation(s)
- M A Semashko
- Belozersky Institute of Physico-Chemical Biology and Biological Faculty of Lomonosov Moscow State University, Moscow, Russia
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Semashko MA, González I, Shaw J, Leonova OG, Popenko VI, Taliansky ME, Canto T, Kalinina NO. The extreme N-terminal domain of a hordeivirus TGB1 movement protein mediates its localization to the nucleolus and interaction with fibrillarin. Biochimie 2012; 94:1180-8. [PMID: 22349738 DOI: 10.1016/j.biochi.2012.02.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 02/06/2012] [Indexed: 01/13/2023]
Abstract
The hordeiviral movement protein encoded by the first gene of the triple gene block (TGBp1) of Poa semilatent virus (PSLV), interacts with viral genomic RNAs to form RNP particles which are considered to be a form of viral genome capable of cell-to-cell and long-distance transport in infected plants. The PSLV TGBp1 contains a C-terminal NTPase/helicase domain (HELD) and an N-terminal extension region consisting of two structurally and functionally distinct domains: an extreme N-terminal domain (NTD) and an internal domain (ID). This study demonstrates that transient expression of TGBp1 fused to GFP in Nicotiana benthamiana leaves results in faint but obvious fluorescence in the nucleolus in addition to cytosolic distribution. Mutagenesis of the basic amino acids inside the NTD clusters A (116)KSKRKKKNKK(125) and B (175)KKATKKESKKQTK(187) reveals that these clusters are indispensable for nuclear and nucleolar targeting of PSLV TGBp1 and may contain nuclear and nucleolar localization signals or their elements. The PSLV TGBp1 is able to bind to fibrillarin, the major nucleolar protein (AtFib2 from Arabidopsis thaliana) in vitro. This protein-protein interaction occurs between the glycine-arginine-rich (GAR) domain of fibrillarin and the first 82 amino acid residues of TGBp1. The interaction of TGBp1 with fibrillarin is also visualized in vivo by bimolecular fluorescence complementation (BiFC) during co-expression of TGBp1 or its deletion mutants, and fibrillarin as fusions to different halves of YFP in N. benthamiana plants. The sites responsible for nuclear/nucleolar localization and fibrillarin binding, have been located within the intrinsically disordered TGBp1 NTD. These data could suggest that specific functions of hordeivirus TGBp1 may depend on its interaction with nucleolar components.
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Affiliation(s)
- Maria A Semashko
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninsky Gory, Moscow, 119992, Russia
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Solovyev AG, Kalinina NO, Morozov SY. Recent advances in research of plant virus movement mediated by triple gene block. Front Plant Sci 2012; 3:276. [PMID: 23248633 PMCID: PMC3520053 DOI: 10.3389/fpls.2012.00276] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 11/23/2012] [Indexed: 05/19/2023]
Abstract
The aim of this short review was to summarize recent advances in the field of viral cell-to-cell movement mediated by the triple gene block (TGB). The growing body of new research has uncovered links between virus cell-to-cell trafficking and replication, silencing suppression, virus spread over the plant, as well as suggested the roles of nucleus/nucleolus in plant virus transport and revealed protein-membrane associations occurring during subcellular targeting and cell-to-cell movement. In this context, our review briefly summarized current views on several potentially important functions of TGB proteins and on the development of new experimental systems that improved understanding of the molecular events during TGB-mediated virus movement.
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Affiliation(s)
- Andrey G. Solovyev
- Belozersky Institute of Physico-Chemical Biology, Moscow State UniversityMoscow, Russia
| | - Natalia O. Kalinina
- Belozersky Institute of Physico-Chemical Biology, Moscow State UniversityMoscow, Russia
| | - Sergey Y. Morozov
- Belozersky Institute of Physico-Chemical Biology, Moscow State UniversityMoscow, Russia
- *Correspondence: Sergey Y. Morozov, Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia. e-mail:
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Taliansky ME, Brown JWS, Rajamäki ML, Valkonen JPT, Kalinina NO. Involvement of the plant nucleolus in virus and viroid infections: parallels with animal pathosystems. Adv Virus Res 2010; 77:119-58. [PMID: 20951872 PMCID: PMC7149663 DOI: 10.1016/b978-0-12-385034-8.00005-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The nucleolus is a dynamic subnuclear body with roles in ribosome subunit biogenesis, mediation of cell-stress responses, and regulation of cell growth. An increasing number of reports reveal that similar to the proteins of animal viruses, many plant virus proteins localize in the nucleolus to divert host nucleolar proteins from their natural functions in order to exert novel role(s) in the virus infection cycle. This chapter will highlight studies showing how plant viruses recruit nucleolar functions to facilitate virus translation and replication, virus movement and assembly of virus-specific ribonucleoprotein (RNP) particles, and to counteract plant host defense responses. Plant viruses also provide a valuable tool to gain new insights into novel nucleolar functions and processes. Investigating the interactions between plant viruses and the nucleolus will facilitate the design of novel strategies to control plant virus infections.
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Affiliation(s)
- M E Taliansky
- Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom
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Lewsey MG, González I, Kalinina NO, Palukaitis P, Canto T, Carr JP. Symptom induction and RNA silencing suppression by the cucumber mosaic virus 2b protein. Plant Signal Behav 2010; 5:705-8. [PMID: 20404501 PMCID: PMC3001565 DOI: 10.4161/psb.5.6.11643] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The 2b protein encoded by Cucumber mosaic virus (CMV) and other cucumoviruses is multifunctional, having roles in local and systemic virus movement, symptom determination, evasion of defense mediated by salicylic acid, and in suppression of antiviral RNA silencing. It also perturbs silencing-mediated regulation of host transcripts, suggesting that another function of 2b protein is to manipulate host gene expression and physiology in a way that may aid the virus. The 2b proteins encoded by the various cucumoviruses (CMV strains, as well as Tomato aspermy virus and Peanut stunt virus) share conserved amino acid sequence domains, suggesting that these might determine specific functions of the protein. We analyzed the effect of mutations in these domains on functions of the 2b protein during viral infection. This revealed that binding of short RNAs, the key determinants of RNA silencing specificity, correlates with RNA silencing suppression activity. Two putative phosphorylation sites were found to be required for virus symptom induction, despite having no influence on RNA silencing suppression. This indicates that the ability to suppress silencing is not the only factor affecting symptom induction by the 2b protein. In accordance with this, our studies also revealed that the 2b protein acts synergistically with some other CMV product(s) to induce symptoms, and that the role of the 2b protein in symptom determination is host species specific.
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Affiliation(s)
- Mathew G Lewsey
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
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González I, Martínez L, Rakitina DV, Lewsey MG, Atencio FA, Llave C, Kalinina NO, Carr JP, Palukaitis P, Canto T. Cucumber mosaic virus 2b protein subcellular targets and interactions: their significance to RNA silencing suppressor activity. Mol Plant Microbe Interact 2010; 23:294-303. [PMID: 20121451 DOI: 10.1094/mpmi-23-3-0294] [Citation(s) in RCA: 132] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The RNA silencing suppressor activity of the 2b protein of Cucumber mosaic virus (CMV) has been variously attributed to its nuclear targeting, its interaction with and inhibition of Argonaute 1 (AGO1), or its ability to bind small RNAs in vitro. In addition, the 2b ortholog of Tomato aspermy virus forms aggregates and binds RNAs in vitro. We have further studied the relationships between CMV 2b protein silencing suppressor activity and its subcellular distribution, protein-protein interactions in vivo, and interactions with small interfering RNAs in vitro. To do this, we tagged the protein with fluorescent markers and showed that it retained suppressor activity. We showed that the 2b protein is present in the nucleolus and that it self-interacts and interacts with AGO1 and AGO4 in vivo. Using a battery of mutants, we showed that the putative nuclear localization signals and phosphorylation motif of the 2b protein are not required for self-interaction or for interaction with AGO proteins. The occurrence of neither of these interactions or of nucleolar targeting was sufficient to provide local silencing-suppression activity. In contrast, the ability of the 2b protein to bind small RNAs appears to be indispensable for silencing suppressor function.
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Affiliation(s)
- Inmaculada González
- Centro de Investigaciones Biológicas, CIB, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
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Makarov VV, Rybakova EN, Efimov AV, Dobrov EN, Serebryakova MV, Solovyev AG, Yaminsky IV, Taliansky ME, Morozov SY, Kalinina NO. Domain organization of the N-terminal portion of hordeivirus movement protein TGBp1. J Gen Virol 2009; 90:3022-3032. [DOI: 10.1099/vir.0.013862-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Three ‘triple gene block’ proteins known as TGBp1, TGBp2 and TGBp3 are required for cell-to-cell movement of plant viruses belonging to a number of genera including Hordeivirus. Hordeiviral TGBp1 interacts with viral genomic RNAs to form ribonucleoprotein (RNP) complexes competent for translocation between cells through plasmodesmata and over long distances via the phloem. Binding of hordeivirus TGBp1 to RNA involves two protein regions, the C-terminal NTPase/helicase domain and the N-terminal extension region. This study demonstrated that the extension region of hordeivirus TGBp1 consists of two structurally and functionally distinct domains called the N-terminal domain (NTD) and the internal domain (ID). In agreement with secondary structure predictions, analysis of circular dichroism spectra of the isolated NTD and ID demonstrated that the NTD represents a natively unfolded protein domain, whereas the ID has a pronounced secondary structure. Both the NTD and ID were able to bind ssRNA non-specifically. However, whilst the NTD interacted with ssRNA non-cooperatively, the ID bound ssRNA in a cooperative manner. Additionally, both domains bound dsRNA. The NTD and ID formed low-molecular-mass oligomers, whereas the ID also gave rise to high-molecular-mass complexes. The isolated ID was able to interact with both the NTD and the C-terminal NTPase/helicase domain in solution. These data demonstrate that the hordeivirus TGBp1 has three RNA-binding domains and that interaction between these structural units can provide a basis for remodelling of viral RNP complexes at different steps of cell-to-cell and long-distance transport of virus infection.
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Affiliation(s)
- Valentin V. Makarov
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Ekaterina N. Rybakova
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Alexander V. Efimov
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Eugene N. Dobrov
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | | | - Andrey G. Solovyev
- Institute of Agricultural Biotechnology, Russian Academy of Agricultural Sciences, Moscow 127550, Russia
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Igor V. Yaminsky
- Physical Faculty, Moscow State University, Moscow 119992, Russia
| | | | - Sergey Yu. Morozov
- Department of Virology, Biological Faculty, Moscow State University, Moscow 119992, Russia
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Natalia O. Kalinina
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
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Leshchiner AD, Minina EA, Rakitina DV, Vishnichenko VK, Solovyev AG, Morozov SY, Kalinina NO. Oligomerization of the potato virus X 25-kD movement protein. Biochemistry (Mosc) 2008; 73:50-5. [PMID: 18294129 DOI: 10.1134/s0006297908010070] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A 25-kD movement protein (25K protein) encoded by the first gene of the potexvirus Potato virus X triple gene block of transport genes is essential for the viral movement in infected plants. The 25K protein belongs to superfamily 1 of NTPase/helicases and exhibits in vitro RNA helicase, Mg2+-dependent NTPase, and RNA-binding activities. In the present work, the ability of 25K protein for homologous interactions was studied using the yeast two-hybrid system, protein chemical cross-linking in the presence of glutaraldehyde, far-Western blotting, and ultracentrifugation in sucrose density gradients. The 25K protein was shown to form homodimers and homooligomers. Sites of homologous protein-protein interactions were found in both the N- and C-terminal portions of the protein.
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Affiliation(s)
- A D Leshchiner
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
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Gabrenaite-Verkhovskaya R, Andreev IA, Kalinina NO, Torrance L, Taliansky ME, Mäkinen K. Cylindrical inclusion protein of potato virus A is associated with a subpopulation of particles isolated from infected plants. J Gen Virol 2008; 89:829-838. [PMID: 18272775 DOI: 10.1099/vir.0.83406-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Potato virus A (PVA) particles were purified by centrifugation through a 30 % sucrose cushion and the pellet (P1) was resuspended and sedimented through a 5-40 % sucrose gradient. The gradient separation resulted in two different virus particle populations: a virus fraction (F) that formed a band in the gradient and one that formed a pellet (P2) at the bottom of the gradient. All three preparations contained infectious particles that retained their integrity when visualized by electron microscopy (EM). Western blotting of the P1 particles revealed that the viral RNA helicase, cylindrical inclusion protein (CI), co-purified with virus particles. This result was confirmed with co-immunoprecipitation experiments. CI was detected in P2 particle preparations, whereas F particles were devoid of detectable amounts of CI. ATPase activity was detected in all three preparations with the greatest amount in P2. Results from immunogold-labelling EM experiments suggested that a fraction of the CI present in the preparations was localized to one end of the virion. Atomic force microscopy (AFM) studies showed that P1 and P2 contained intact particles, some of which had a protruding tip structure at one end, whilst F virions were less stable and mostly appeared as beaded structures under the conditions of AFM. The RNA of the particles in F was translated five to ten times more efficiently than RNA from P2 particles when these preparations were subjected to translation in wheat-germ extracts. The results are discussed in the context of a model for CI-mediated functions.
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Affiliation(s)
| | - Igor A Andreev
- Plant Pathology Programme, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Natalia O Kalinina
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Lesley Torrance
- Plant Pathology Programme, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Michael E Taliansky
- Plant Pathology Programme, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Kristiina Mäkinen
- Department of Applied Chemistry and Microbiology, FIN-00014 University of Helsinki, Finland
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Canetta E, Kim SH, Kalinina NO, Shaw J, Adya AK, Gillespie T, Brown JWS, Taliansky M. A plant virus movement protein forms ringlike complexes with the major nucleolar protein, fibrillarin, in vitro. J Mol Biol 2007; 376:932-7. [PMID: 18199452 PMCID: PMC7126915 DOI: 10.1016/j.jmb.2007.12.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2007] [Revised: 12/17/2007] [Accepted: 12/18/2007] [Indexed: 12/21/2022]
Abstract
Fibrillarin, one of the major proteins of the nucleolus, has methyltransferase activity directing 2′-O-ribose methylation of rRNA and snRNAs and is required for rRNA processing. The ability of the plant umbravirus, groundnut rosette virus, to move long distances through the phloem, the specialized plant vascular system, has been shown to strictly depend on the interaction of one of its proteins, the ORF3 protein (protein encoded by open reading frame 3), with fibrillarin. This interaction is essential for several stages in the groundnut rosette virus life cycle such as nucleolar import of the ORF3 protein via Cajal bodies, relocalization of some fibrillarin from the nucleolus to cytoplasm, and assembly of cytoplasmic umbraviral ribonucleoprotein particles that are themselves required for the long-distance spread of the virus and systemic infection. Here, using atomic force microscopy, we determine the architecture of these complexes as single-layered ringlike structures with a diameter of 18–22 nm and a height of 2.0 ± 0.4 nm, which consist of several (n = 6–8) distinct protein granules. We also estimate the molar ratio of fibrillarin to ORF3 protein in the complexes as approximately 1:1. Based on these data, we propose a model of the structural organization of fibrillarin–ORF3 protein complexes and discuss potential mechanistic and functional implications that may also apply to other viruses.
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Affiliation(s)
- Elisabetta Canetta
- BIONTHE (Bio- and Nano-Technologies for Health & Environment) Centre, School of Contemporary Sciences, University of Abertay, Dundee, Bell Street, Dundee DD1 1HG, UK
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37
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Kim SH, MacFarlane S, Kalinina NO, Rakitina DV, Ryabov EV, Gillespie T, Haupt S, Brown JWS, Taliansky M. Interaction of a plant virus-encoded protein with the major nucleolar protein fibrillarin is required for systemic virus infection. Proc Natl Acad Sci U S A 2007; 104:11115-20. [PMID: 17576925 PMCID: PMC1904140 DOI: 10.1073/pnas.0704632104] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The nucleolus and specific nucleolar proteins are involved in the life cycles of some plant and animal viruses, but the functions of these proteins and of nucleolar trafficking in virus infections are largely unknown. The ORF3 protein of the plant virus, groundnut rosette virus (an umbravirus), has been shown to cycle through the nucleus, passing through Cajal bodies to the nucleolus and then exiting back into the cytoplasm. This journey is absolutely required for the formation of viral ribonucleoprotein particles (RNPs) that, themselves, are essential for the spread of the virus to noninoculated leaves of the shoot tip. Here, we show that these processes rely on the interaction of the ORF3 protein with fibrillarin, a major nucleolar protein. Silencing of the fibrillarin gene prevents long-distance movement of groundnut rosette virus but does not affect viral replication or cell-to-cell movement. Repressing fibrillarin production also localizes the ORF3 protein to multiple Cajal body-like aggregates that fail to fuse with the nucleolus. Umbraviral ORF3 protein and fibrillarin interact in vitro and, when mixed with umbravirus RNA, form an RNP complex. This complex has a filamentous structure with some regular helical features, resembling the RNP complex formed in vivo during umbravirus infection. The filaments formed in vitro are infectious when inoculated to plants, and their infectivity is resistant to RNase. These results demonstrate previously undescribed functions for fibrillarin as an essential component of translocatable viral RNPs and may have implications for other plant and animal viruses that interact with the nucleolus.
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Affiliation(s)
- Sang Hyon Kim
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
| | - Stuart MacFarlane
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
| | - Natalia O. Kalinina
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia; and
| | - Daria V. Rakitina
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia; and
| | - Eugene V. Ryabov
- Horticulture Research International, University of Warwick, Wellesbourne, Warwick CV35 9EF, United Kingdom
| | - Trudi Gillespie
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
| | - Sophie Haupt
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
| | - John W. S. Brown
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
| | - Michael Taliansky
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom
- To whom correspondence should be addressed. E-mail:
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38
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Kim SH, Ryabov EV, Kalinina NO, Rakitina DV, Gillespie T, MacFarlane S, Haupt S, Brown JWS, Taliansky M. Cajal bodies and the nucleolus are required for a plant virus systemic infection. EMBO J 2007; 26:2169-79. [PMID: 17410203 PMCID: PMC1852794 DOI: 10.1038/sj.emboj.7601674] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2006] [Accepted: 03/13/2007] [Indexed: 12/21/2022] Open
Abstract
The nucleolus and Cajal bodies (CBs) are prominent interacting subnuclear domains involved in a number of crucial aspects of cell function. Certain viruses interact with these compartments but the functions of such interactions are largely uncharacterized. Here, we show that the ability of the groundnut rosette virus open reading frame (ORF) 3 protein to move viral RNA long distances through the phloem strictly depends on its interaction with CBs and the nucleolus. The ORF3 protein targets and reorganizes CBs into multiple CB-like structures and then enters the nucleolus by causing fusion of these structures with the nucleolus. The nucleolar localization of the ORF3 protein is essential for subsequent formation of viral ribonucleoprotein (RNP) particles capable of virus long-distance movement and systemic infection. We provide a model whereby the ORF3 protein utilizes trafficking pathways involving CBs to enter the nucleolus and, along with fibrillarin, exit the nucleus to form viral 'transport-competent' RNP particles in the cytoplasm.
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Affiliation(s)
- Sang Hyon Kim
- Scottish Crop Research Institute, Invergowrie, Dundee, UK
| | | | - Natalia O Kalinina
- Scottish Crop Research Institute, Invergowrie, Dundee, UK
- AN Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | - Daria V Rakitina
- Scottish Crop Research Institute, Invergowrie, Dundee, UK
- AN Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | | | | | - Sophie Haupt
- School of Life Sciences, University of Dundee, Dundee, UK
| | - John W S Brown
- Scottish Crop Research Institute, Invergowrie, Dundee, UK
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39
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Leshchiner AD, Solovyev AG, Morozov SY, Kalinina NO. A minimal region in the NTPase/helicase domain of the TGBp1 plant virus movement protein is responsible for ATPase activity and cooperative RNA binding. J Gen Virol 2006; 87:3087-3095. [PMID: 16963768 DOI: 10.1099/vir.0.81971-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The TGBp1 protein, encoded in the genomes of a number of plant virus genera as the first gene of the 'triple gene block', possesses an NTPase/helicase domain characterized by seven conserved sequence motifs. It has been shown that the TGBp1 NTPase/helicase domain exhibits NTPase, RNA helicase and RNA-binding activities. In this paper, we have analysed a series of deletion and point mutants in the TGBp1 proteins encoded by Potato virus X (PVX, genus Potexvirus) and Poa semilatent virus (PSLV, genus Hordeivirus) to map functional regions responsible for their biochemical activities in vitro. It was found that, in both PVX and PSLV, the N-terminal part of the TGBp1 NTPase/helicase domain comprising conserved motifs I, Ia and II was sufficient for ATP hydrolysis, RNA binding and homologous protein-protein interactions. Point mutations in a single conserved basic amino acid residue upstream of motif I had little effect on the activities of C-terminally truncated mutants of both TGBp1 proteins. However, when introduced into the full-length NTPase/helicase domains, these mutations caused a substantial decrease in the ATPase activity of the protein, suggesting that the conserved basic amino acid residue upstream of motif I was required to maintain a reaction-competent conformation of the TGBp1 ATPase active site.
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Affiliation(s)
- Anna D Leshchiner
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Andrey G Solovyev
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Sergey Yu Morozov
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
| | - Natalia O Kalinina
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
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40
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Rakitina DV, Yelina NE, Kalinina NO. Zinc ions stimulate the cooperative RNA binding of hordeiviral gammab protein. FEBS Lett 2006; 580:5077-83. [PMID: 16949581 DOI: 10.1016/j.febslet.2006.08.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2006] [Revised: 07/28/2006] [Accepted: 08/08/2006] [Indexed: 11/19/2022]
Abstract
A small regulatory gammab protein of the Poa semilatent hordeivirus (PSLV) contains two zinc finger-like motifs separated by a basic motif in the N-terminal part and a C-terminal coiled-coil motif. Interactions of the recombinant PSLV gammab protein and its mutants with various RNAs (ssRNA, dsRNA, ssRNA oligonucleotides) and ssDNA were studied in gel-shift assays. The results demonstrated that zinc ions are essential for effective nucleic-acid-binding activity of the gammab protein, suggesting the important role of zinc finger motifs in these interactions. Deletion of the C-proximal coiled-coil region did not affect highly cooperative RNA-protein binding, indicating that the N-terminal part of the protein contributes to the protein-protein interactions needed for the protein-RNA cooperativity.
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Affiliation(s)
- Daria V Rakitina
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
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41
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Rakitina DV, Kantidze OL, Leshchiner AD, Solovyev AG, Novikov VK, Morozov SY, Kalinina NO. Coat proteins of two filamentous plant viruses display NTPase activity in vitro. FEBS Lett 2005; 579:4955-60. [PMID: 16115626 DOI: 10.1016/j.febslet.2005.07.083] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Revised: 06/22/2005] [Accepted: 07/19/2005] [Indexed: 10/25/2022]
Abstract
Coat proteins (CPs) of plant viruses are involved in different stages of the viral life cycle such as virion assembly, replication, movement, vector transmission, and regulation of host defense responses. Here, we report that the CPs of two filamentous RNA viruses, potato virus X (PVX, Potexvirus) and potato virus A (PVA, Potyvirus) exhibit an enzyme activity. The CP isolated from PVX virions possesses ATP-binding and ATPase activities. Recombinant PVX and PVA CPs produced in Escherichia coli show Mg2+-dependent ATPase and UTPase activities inhibited by antibodies against virus particles. Deletion of the C-terminal regions of these proteins diminishes their ATPase activity.
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Affiliation(s)
- Daria V Rakitina
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia.
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42
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Taliansky M, Kim SH, Mayo MA, Kalinina NO, Fraser G, McGeachy KD, Barker H. Escape of a plant virus from amplicon-mediated RNA silencing is associated with biotic or abiotic stress. Plant J 2004; 39:194-205. [PMID: 15225285 DOI: 10.1111/j.1365-313x.2004.02120.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Strong RNA silencing was induced in plants transformed with an amplicon consisting of full-length cDNA of potato leafroll virus (PLRV) expressing green fluorescent protein (GFP), as shown by low levels of PLRV-GFP accumulation, lack of symptoms and accumulation of amplicon-specific short interfering RNAs (siRNAs). Inoculation of these plants with various viruses known to encode silencing suppressor proteins induced a striking synergistic effect leading to the enhanced accumulation of PLRV-GFP, suggesting that it had escaped from silencing. However, PLRV-GFP escape also occurred following inoculation with viruses that do not encode known silencing suppressors and treatment of silenced plants with biotic or abiotic stress agents. We propose that viruses can evade host RNA-silencing defences by a previously unrecognized mechanism that may be associated with a host response to some types of abiotic stress such as heat shock.
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Affiliation(s)
- Michael Taliansky
- Gene Expression Programme, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, Scotland, UK
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43
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Andreev IA, Hyon Kim S, Kalinina NO, Rakitina DV, Fitzgerald AG, Palukaitis P, Taliansky ME. Molecular Interactions Between a Plant Virus Movement Protein and RNA: Force Spectroscopy Investigation. J Mol Biol 2004; 339:1041-7. [PMID: 15178246 DOI: 10.1016/j.jmb.2004.04.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2004] [Revised: 04/05/2004] [Accepted: 04/06/2004] [Indexed: 10/26/2022]
Abstract
RNA-protein interactions are fundamental for different aspects of molecular biology such as gene expression, assembly of biomolecular complexes or macromolecular transport. The 3a movement protein (MP) of a plant virus, Cucumber mosaic virus (CMV), forms ribonucleoprotein (RNP) complexes with viral RNA, capable of trafficking from cell-to-cell throughout the infected plant only in the presence of the CMV capsid protein (CP). However, deletion of the C-terminal 33 amino acid residues of the CMV MP (in the mutant designated 3aDeltaC33 MP) resulted in CP-independent cell-to-cell movement. The biological differences in the behaviour of CMV wild type (wt) 3a MP and 3aDeltaC33 MP could have been a consequence of differences in the RNA-binding properties of the two MPs detected previously using biochemical assays on ensembles of molecules. To investigate the physical mechanisms of MP-RNA interactions at a single molecule level, we applied atomic force microscopy to measure for the first time unbinding forces between these individual binding partners. Minimal unbinding forces determined for individual interaction of the CMV RNA molecule with the CMV wt or truncated MPs were estimated to be approximately 45 pN and approximately 90 pN, respectively, suggesting that the distinct differences in the strength of MP-RNA interactions for the wt MP and truncated MP are attributable to the molecular binding mechanism. We also demonstrated that molecules of both CMV 3a MP and 3aDeltaC33 MP were capable of self-interaction with minimal unbinding forces of approximately 50 pN and approximately 70 pN, respectively, providing a physical basis for the cooperative mechanism of the RNA binding. The significance of intermolecular force measurements for understanding the structural and functional aspects of viral RNP formation and trafficking is discussed.
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Affiliation(s)
- Igor A Andreev
- Gene Expression Programme, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
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44
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Affiliation(s)
- T V Serazev
- AN Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninsky Gory, 119992 Moscow, Russia.
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45
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Kim SH, Kalinina NO, Andreev I, Ryabov EV, Fitzgerald AG, Taliansky ME, Palukaitis P. The C-terminal 33 amino acids of the cucumber mosaic virus 3a protein affect virus movement, RNA binding and inhibition of infection and translation. J Gen Virol 2004; 85:221-230. [PMID: 14718637 DOI: 10.1099/vir.0.19583-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The capsid protein (CP) of Cucumber mosaic virus (CMV) is required for cell-to-cell movement, mediated by the 3a movement protein (MP). Deletion of the C-terminal 33 amino acids of the CMV 3a MP (in the mutant designated 3aDeltaC33 MP) resulted in CP-independent cell-to-cell movement, but not long-distance movement. RNA-binding studies done in vitro using isolated bacterially expressed MP showed that the 3aDeltaC33 MP bound RNA more strongly, with fewer regions sensitive to RNase and formed cooperatively bound complexes at lower ratios of protein : RNA than the wild-type (wt) 3a MP. Analysis of the architecture of the complexes by atomic force microscopy showed that the wt 3a MP formed a single type of complex with RNA, resembling beads on a string. By contrast, the 3aDeltaC33 MP formed several types of complexes, including complexes with virtually no MP bound or thicker layers of MP bound to the RNA. Assays showed that protein-RNA complexes containing high levels of either MP inhibited the infectivity and in vitro translatability of viral RNAs. The 3aDeltaC33 MP inhibited these processes at lower ratios of protein : RNA than the wt 3a MP, consistent with its stronger binding properties. The apparent contradiction between these inhibition data and the CP-independent cell-to-cell movement of CMV expressing the 3aDeltaC33 MP is discussed.
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Affiliation(s)
- Sang Hyon Kim
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Natalia O Kalinina
- A.N. Belozersky Institute of Physico-chemical Biology, Moscow State University, Moscow 119899, Russia
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
| | - Igor Andreev
- Dept of Electronic Engineering and Physics, University of Dundee, Dundee DD1 4NH, UK
| | - Eugene V Ryabov
- Horticulture Research International-East Malling, ME19 6BJ, UK
| | | | | | - Peter Palukaitis
- Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK
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46
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Chichkova NV, Kim SH, Titova ES, Kalkum M, Morozov VS, Rubtsov YP, Kalinina NO, Taliansky ME, Vartapetian AB. A plant caspase-like protease activated during the hypersensitive response. Plant Cell 2004; 16:157-71. [PMID: 14660804 PMCID: PMC301402 DOI: 10.1105/tpc.017889] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2003] [Accepted: 10/14/2003] [Indexed: 05/18/2023]
Abstract
To test the hypothesis that caspase-like proteases exist and are critically involved in the implementation of programmed cell death (PCD) in plants, a search was undertaken for plant caspases activated during the N gene-mediated hypersensitive response (HR; a form of pathogen-induced PCD in plants) in tobacco plants infected with Tobacco mosaic virus (TMV). For detection, characterization, and partial purification of a tobacco caspase, the Agrobacterium tumefaciens VirD2 protein, shown here to be cleaved specifically at two sites (TATD and GEQD) by human caspase-3, was used as a target. In tobacco leaves, specific proteolytic processing of the ectopically produced VirD2 derivatives at these sites was found to occur early in the course of the HR triggered by TMV. A proteolytic activity capable of specifically cleaving the model substrate at TATD was partially purified from these leaves. A tetrapeptide aldehyde designed and synthesized on the basis of the elucidated plant caspase cleavage site prevented fragmentation of the substrate protein by plant and human caspases in vitro and counteracted TMV-triggered HR in vivo. Therefore, our data provide a characterization of caspase-specific protein fragmentation in apoptotic plant cells, with implications for the importance of such activity in the implementation of plant PCD.
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Affiliation(s)
- Nina V Chichkova
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119992, Russia
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47
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Serazev TV, Nadezhdina ES, Shanina NA, Leshchiner AD, Kalinina NO, Morozov SI. [Virions and membrane proteins of the potato X virus interact with microtubules and enables tubulin polymerization in vitro]. Mol Biol (Mosk) 2003; 37:1080-8. [PMID: 14714504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
A study was made of the in vitro interactions of virions and the coat protein (CP) of the potato virus X (PVX) with microtubules (MT). Both virions and CP cosedimented with taxol-stabilized MT. In the presence of PVX CP, tubulin polymerized to produce structures resistant to chilling. Electron microscopy revealed the aberrant character of the resulting tubulin polymers (protofilaments and their sheets), which differed from MT assembled in the presence of cell MAP2. In contrast, PVX virions induced the assembly of morphologically normal MT sensitive to chilling. Virions were shown to compete with MAP2 for MT binding, suggesting an overlap for the MT sites interacting with MAP2 and with PVX virions. It was assumed that PVX virions interact with MT in vivo and that, consequently, cytoskeleton elements participate in intracellular compartmentalization of the PVX genome.
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Affiliation(s)
- T V Serazev
- Belozersky Institute of Physico-Chemical Biology and Biological Department, Moscow State University, Moscow, 119992 Russia
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48
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Gorshkova EN, Erokhina TN, Stroganova TA, Yelina NE, Zamyatnin AA, Kalinina NO, Schiemann J, Solovyev AG, Morozov SY. Immunodetection and fluorescent microscopy of transgenically expressed hordeivirus TGBp3 movement protein reveals its association with endoplasmic reticulum elements in close proximity to plasmodesmata. J Gen Virol 2003; 84:985-994. [PMID: 12655101 DOI: 10.1099/vir.0.18885-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The subcellular localization of the hydrophobic TGBp3 protein of Poa semilatent virus (PSLV, genus Hordeivirus) was studied in transgenic plants using fluorescent microscopy to detect green fluorescent protein (GFP)-tagged protein and immunodetection with monoclonal antibodies (mAbs) raised against the GFP-based fusion expressed in E. coli. In Western blot analysis, mAbs efficiently recognized the wild-type and GFP-fused PSLV TGBp3 proteins expressed in transgenic Nicotiana benthamiana, but failed to detect TGBp3 in hordeivirus-infected plants. It was found that PSLV TGBp3 and GFP-TGBp3 had a tendency to form large protein complexes of an unknown nature. Fractionation studies revealed that TGBp3 represented an integral membrane protein and probably co-localized with an endoplasmic reticulum-derived domain. Microscopy of epidermal cells in transgenic plants demonstrated that GFP-TGBp3 localized to cell wall-associated punctate bodies, which often formed pairs of opposing discrete structures that co-localized with callose, indicating their association with the plasmodesmata-enriched cell wall fields. After mannitol-induced plasmolysis of the leaf epidermal cells in the transgenic plants, TGBp3 appeared within the cytoplasm and not at cell walls. Although TGBp3-induced bodies were normally static, most of them became motile after plasmolysis and displayed stochastic motion in the cytoplasm.
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Affiliation(s)
- E N Gorshkova
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
| | - T N Erokhina
- M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
| | - T A Stroganova
- Institute of Microbiology, Russian Academy of Sciences, 7 Prospect 60 Let Oktyabrya, Moscow 117811, Russia
| | - N E Yelina
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
| | - A A Zamyatnin
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
| | - N O Kalinina
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
| | - J Schiemann
- Institute of Plant Virology, Microbiology and Biosafety, Federal Biological Research Centre for Agriculture and Forestry, Messeweg 11/12, D-38104 Braunschweig, Germany
| | - A G Solovyev
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
| | - S Yu Morozov
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
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49
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Kalinina NO, Rakitina DV, Solovyev AG, Schiemann J, Morozov SY. RNA helicase activity of the plant virus movement proteins encoded by the first gene of the triple gene block. Virology 2002; 296:321-9. [PMID: 12069530 DOI: 10.1006/viro.2001.1328] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cell-to-cell and long-distance transport of some plant viruses requires coordinated action of three movement proteins encoded by triple gene block (TGB). The largest of TGB proteins, TGBp1, is a member of the superfamily I of DNA/RNA helicases and possesses a set of conserved helicase sequence motifs necessary for virus movement. A recombinant His-tagged form of TGBp1 of two hordeiviruses and potato virus X, a potexvirus, produced in Escherichia coli had unwinding activity on a partially duplexed RNA, but not DNA substrate. The helicase activity of these proteins was dependent on Mg2+ and ATP. The isolated C-terminal half of the PSLV TGBp1 retaining all helicase motifs was also able to unwind RNA duplex.
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Affiliation(s)
- N O Kalinina
- Department of Virology, Moscow State University, Moscow, Russia
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50
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Kalinina NO, Rakitina DA, Yelina NE, Zamyatnin AA, Stroganova TA, Klinov DV, Prokhorov VV, Ustinova SV, Chernov BK, Schiemann J, Solovyev AG, Morozov SY. RNA-binding properties of the 63 kDa protein encoded by the triple gene block of poa semilatent hordeivirus. J Gen Virol 2001; 82:2569-2578. [PMID: 11562549 DOI: 10.1099/0022-1317-82-10-2569] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The 63 kDa '63K' movement protein encoded by the triple gene block of poa semilatent virus (PSLV) comprises the C-terminal NTPase/helicase domain and the N-terminal extension domain, which contains two positively charged sequence motifs, A and B. In this study, the in vitro RNA-binding properties of PSLV 63K and its mutants were analysed. Membrane-immobilized 63K and N-63K (isolated N-terminal extension domain) bound RNA at high NaCl concentrations. In contrast, C-63K (isolated NTPase/helicase domain) was able to bind RNA only at NaCl concentrations of up to 50 mM. In gel-shift assays, C-63K bound RNA to form complexes that were unable to enter an agarose gel, whereas complexes formed by N-63K could enter the gel. Full-length 63K formed both types of complexes. Visualization of the RNA-protein complexes formed by 63K, N-63K and C-63K by atomic force microscopy demonstrated that each complex had a different shape. Collectively, these data indicate that 63K has two distinct RNA-binding activities associated with the NTPase/helicase domain and the N-terminal extension domain. Mutations in either of the positively charged sequence motifs A and B had little effect on the RNA binding of the N-terminal extension domain, whereas mutations in both motifs together inhibited RNA binding. Hybrid viruses with mutations in motifs A and B were able to infect inoculated leaves of Nicotiana benthamiana plants, but were unable to move systemically to uninoculated leaves, suggesting that the RNA-binding activity of the N-terminal extension domain of PSLV 63K is associated with virus long-distance movement.
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Affiliation(s)
- N O Kalinina
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
| | - D A Rakitina
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
| | - N E Yelina
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
| | - A A Zamyatnin
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
| | - T A Stroganova
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
| | - D V Klinov
- M. M. Shemyakin and Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya St, 117997 Moscow, Russia2
| | - V V Prokhorov
- M. M. Shemyakin and Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya St, 117997 Moscow, Russia2
| | - S V Ustinova
- M. M. Shemyakin and Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya St, 117997 Moscow, Russia2
| | - B K Chernov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova St, Moscow 117984, Russia3
| | - J Schiemann
- Institute of Plant Virology, Microbiology and Biosafety, Federal Biological Research Centre for Agriculture and Forestry, Messeweg 11/12, D-38104 Braunschweig, Germany4
| | - A G Solovyev
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
| | - S Yu Morozov
- Department of Virology and A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia1
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