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Bazhenov SV, Scheglova ES, Fomin VV, Zavilgelsky GB, Manukhov IV. Two-Stage Activation of lux Regulon of Psychrophilic Marine Luminescent Bacteria Aliivibrio logei. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422020028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Melkina OE, Zavilgelsky GB. N-Domain of ArdA Antirestriction Proteins Inhibits the Repression Activity of the Histone-Like H-NS Protein. Mol Biol 2021. [DOI: 10.1134/s0026893321020266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Gnuchikh EY, Manukhov IV, Zavilgelsky GB. Biosensors to Assess the Activity of Promoters and Chaperones in Bacillus subtilis Cells. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821080020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Kotova VY, Abilev SK, Zavilgelsky GB. The Ratio between Lethal and Mutagenic Damages in the DNA of Plasmids and Bacteriophages Induced by 8-Methoxypsoralen Plus UV (λ ≥ 320 nm) Treatment. RUSS J GENET+ 2021. [DOI: 10.1134/s1022795421070097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Melkina OE, Zavilgelsky GB. [N-Domain of ArdA Antirestriction Proteins Inhibits the Repression Activity of the Histone-Like H-NS Protein]. Mol Biol (Mosk) 2021; 55:491-499. [PMID: 34097683 DOI: 10.31857/s0026898421030125] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/01/2020] [Indexed: 11/24/2022]
Abstract
DNA mimicking ArdA anti-restriction proteins specifically inhibit restriction (endonuclease) activity of the type I restriction-modification (RM) system. An ArdA monomer is comprised of three α-β domains (the N-domain, Central domain, and C-domain), each with a different fold. Here we describe an alignment of the amino acid (a.a.) sequences of the ArdA with a conserved 20-a.a. motif in the N domain. The N domains of ArdA proteins of the Gram-positive bacteria Arthrobacter sp. and Bifidobacterium longum, and the Gram-negative bacteria Pseudomonas plecoglossicida are capable of inhibiting the repressive activity of the H-NS global silencer protein in Escherichia coli cells. The presence of the H-NS inhibiting N domain in the ArdA structure enables horizontal gene transfer by mobile elements, including conjugative plasmids and transposons. Specifically, it aids in overcoming intercellular restriction barriers, allowing faster adaption to the genome context of the recipient bacterium.
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Affiliation(s)
- O E Melkina
- State Research Institute of Genetics and Selection of Industrial Microorganisms of the National Research Center "Kurchatov Institute", Moscow, 117545 Russia
| | - G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms of the National Research Center "Kurchatov Institute", Moscow, 117545 Russia.,
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Gnuchikh EY, Manukhov IV, Zavilgelsky GB. DnaK Chaperone Takes Part in Folding but Not in Refolding of Thermal Inactivated Proteins in Bacillus subtilis. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420090070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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7
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Zavilgelsky GB, Gnuchikh EY, Melkina OE. [Thermostability and Refolding of Proteins in Bacteria Is Determined by the Activity of Two Different ATP-Dependent Chaperone Groups]. Mol Biol (Mosk) 2020; 54:300-307. [PMID: 32392200 DOI: 10.31857/s0026898420020196] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 10/23/2019] [Indexed: 11/24/2022]
Abstract
The thermal stability of protein enzymes is determined in vitro by measuring the enzymatic activity during incubation at constant temperature. Refolding of thermal inactivated enzymes is carried out both in vitro and in vivo, in the presence of chaperones, usually at temperature optimal for the particular enzyme for the manifestation of enzymatic activity. In the present work thermal stability of enzymes in vitro (using purified preparations) and in vivo (directly in the bacterial cell) has been determined. Bacterial luciferases of Aliivibrio fischeri, Photobacterium leiognathi and Photorhabdus luminescens as protein substrates have been used. It is shown that the thermal stability of the P. luminescens and P. leiognathi luciferases in vivo in the Escherichia coli MG1655 dnaK^(+) and PK202 ΔdnaKJ14 strains is considerable higher than the thermal stability of "cell-free extract" luciferases. When an uncoupler of oxidative phosphorylation the carbonyl-cyanide-3-chlorophenylhydrazone (CCCP) that reduce the intracellular concentration of ATP to a minimum level, and the volatile hydrophobic substance (-)-Limonene (C10H16) as an inhibitor of chaperone-dependent refolding are added to the medium, the thermal stability of luciferases reduces almost to the level which is characteristic for the purified protein preparation. It is shown that the ATP-dependent chaperones ClpA and ClpB are essential for the increase of thermostability of luciferases in bacterial cells. Also, it is shown that the DnaKJE-dependent refolding of thermoinactivated luciferases is practically absent if the protonophore СССР or the hydrophobic substance (-)-Limonene was added to the bacterial suspension. Taking the data presented in this paper into account, it is necessary to consider the presence in bacterial cells of two different groups of ATP-dependent chaperones: 1st group (DnaKJE, GroEL/ES) is able to conduct the refolding both at low temperature after protein thermal inactivation and at high temperature at which protein thermal inactivation occurs; 2nd group (ClpA,ClpB, and possibly still unknown chaperones) is unable to conduct the standard refolding (i.e. at low temperature), but capable due to the hydrolysis energy of ATP of maintaining nonequilibrium stabilization of protein native forms at high temperature.
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Affiliation(s)
- G B Zavilgelsky
- State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center "Kurchatov Institute", Moscow, 117545 Russia.,
| | - E Yu Gnuchikh
- State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center "Kurchatov Institute", Moscow, 117545 Russia
| | - O E Melkina
- State Research Institute for Genetics and Selection of Industrial Microorganisms of National Research Center "Kurchatov Institute", Moscow, 117545 Russia
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8
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Abilev SK, Kotova VY, Smirnova SV, Shapiro TN, Zavilgelsky GB. Specific Lux Biosensors of Escherichia coli Containing pRecA::lux, pColD::lux, and pDinI::lux Plasmids for Detection of Genotoxic Agents. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420060022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Kudryavtseva AA, Okhrimenko IS, Didina VS, Zavilgelsky GB, Manukhov IV. Antirestriction Protein ArdB (R64) Interacts with DNA. Biochemistry (Mosc) 2020; 85:318-325. [PMID: 32564736 DOI: 10.1134/s0006297920030074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The antirestriction ArdB protein inhibits the endonuclease activity of type I restriction/modification (RM) systems in vivo; however, the mechanism of inhibition remains unknown. In this study, we showed that recombinant ArdB from Escherichia coli cells co-purified with DNA. When overexpressed in E. coli cells, a portion of ArdB protein formed insoluble DNA-free aggregates. Only native ArdB, but not the ArdBΔD141 mutant lacking the antirestriction activity, co-purified with DNA upon anion-exchange and affinity chromatography or total DNA isolation from formaldehyde-treated cells. These observations confirm the hypothesis that ArdB blocks DNA translocation via the R subunits of the R2M2S complex of type I RM enzymes.
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Affiliation(s)
- A A Kudryavtseva
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141707, Russia.
| | - I S Okhrimenko
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141707, Russia
| | - V S Didina
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141707, Russia
| | - G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Kurchatov Institute National Research Center, Moscow, 117545, Russia
| | - I V Manukhov
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141707, Russia.,State Research Institute of Genetics and Selection of Industrial Microorganisms, Kurchatov Institute National Research Center, Moscow, 117545, Russia
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Zavilgelsky GB, Gnuchikh EY, Melkina OE. Thermostability and Refolding of Proteins in Bacteria Is Determined by the Activity of Two Different ATP-Dependent Chaperone Groups. Mol Biol 2020. [DOI: 10.1134/s0026893320020193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Pokrovsky VS, Anisimova NY, Davydov DZ, Bazhenov SV, Bulushova NV, Zavilgelsky GB, Kotova VY, Manukhov IV. Methionine Gamma Lyase from Clostridium sporogenes Increases the Anticancer Efficacy of Doxorubicin on A549 Cancer Cells In Vitro and Human Cancer Xenografts. Methods Mol Biol 2019; 1866:243-261. [PMID: 30725420 DOI: 10.1007/978-1-4939-8796-2_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The anticancer efficacy of methionine γ-lyase (MGL) from Clostridium sporogenes (C. sporogenes) is described. MGL was active against cancer cells in vitro and in vivo. Doxorubicin (DOX) and MGL were more effective on A549 human lung-cancer growth inhibition than either agent alone in vitro and in vivo.
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Affiliation(s)
- V S Pokrovsky
- Laboratory of Combined Treatment, N.N. Blokhin Cancer Research Center, Moscow, Russia. .,Department of Biochemistry, People's Friendship University (RUDN University), Moscow, Russia.
| | - N Yu Anisimova
- Laboratory of Combined Treatment, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - D Zh Davydov
- Laboratory of Combined Treatment, N.N. Blokhin Cancer Research Center, Moscow, Russia
| | - S V Bazhenov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Moscow, Russia.,Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
| | - N V Bulushova
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Moscow, Russia
| | - G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Moscow, Russia
| | - V Y Kotova
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Moscow, Russia
| | - I V Manukhov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Moscow, Russia.,Laboratory of Molecular Genetics, Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia
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13
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Zavilgelsky GB, Shakulov RS. [Mechanisms and Origin of Bacterial Biolumenescence]. Mol Biol (Mosk) 2018; 52:935-947. [PMID: 30633237 DOI: 10.1134/s0026898418060186] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 05/30/2018] [Indexed: 06/09/2023]
Abstract
The origin of bioluminescence in living organisms was first mentioned by Charles Darwin (1859) and remains obscure despite significant success achieved over the past decades. Here we discuss the mechanisms of bacterial bioluminescence. We have the main results from structural and functional analysis of the genes of lux operons, enzymes (luciferase), and mechanisms of bioluminescence in several species of marine bacteria, which belong to three genera, Vibrio, Aliivibrio, and Photobacterium (A. fischeri, V. harveyi, P. leiognathi, and P. phosphoreum), and in terrestrial bacteria of the genus Photorhabdus (Ph. luminescens). The structure and mechanisms for the regulation of the expression of the lux operons are discussed. The fundamental characteristics of luciferase and luciferase-catalyzed reactions (stages of FMNH2 and tetradecanal oxidation, dimensional structure, as well as folding and refolding of the macromolecule) are described. We also discuss the main concepts of the origin of bacterial bioluminescence and its role in the ecology of modern marine fauna, including its involvement in the processes of detoxification of the reactive oxygen species and DNA repair, as well as the bait hypothesis.
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Affiliation(s)
- G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, National Research Center "Kurchatov Institute", Moscow, 117545 Russia
| | - R S Shakulov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, National Research Center "Kurchatov Institute", Moscow, 117545 Russia
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14
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Vasilchenko AS, Vasilchenko AV, Pashkova TM, Smirnova MP, Kolodkin NI, Manukhov IV, Zavilgelsky GB, Sizova EA, Kartashova OL, Simbirtsev AS, Rogozhin EA, Duskaev GK, Sycheva MV. Antimicrobial activity of the indolicidin-derived novel synthetic peptide In-58. J Pept Sci 2018; 23:855-863. [PMID: 29193518 DOI: 10.1002/psc.3049] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/28/2017] [Accepted: 10/01/2017] [Indexed: 12/26/2022]
Abstract
Natural peptides with antimicrobial activity are extremely diverse, and peptide synthesis technologies make it possible to significantly improve their properties for specific tasks. Here, we investigate the biological properties of the natural peptide indolicidin and the indolicidin-derived novel synthetic peptide In-58. In-58 was generated by replacing all tryptophan residues on phenylalanine in D-configuration; the α-amino group in the main chain also was modified by unsaturated fatty acid. Compared with indolicidin, In-58 is more bactericidal, more resistant to proteinase K, and less toxic to mammalian cells. Using molecular physics approaches, we characterized the action of In-58 on bacterial cells at the cellular level. Also, we have found that studied peptides damage bacterial membranes. Using the Escherichia coli luminescent biosensor strain MG1655 (pcolD'::lux), we investigated the action of indolicidin and In-58 at the subcellular level. At subinhibitory concentrations, indolicidin and In-58 induced an SOS response. Our data suggest that indolicidin damages the DNA, but bacterial membrane perturbation is its principal mode of action. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- A S Vasilchenko
- Tyumen State University, ul. Volodarsky, 6, Tyumen, 625003, Russia
| | - A V Vasilchenko
- Tyumen State University, ul. Volodarsky, 6, Tyumen, 625003, Russia
| | - T M Pashkova
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia
| | - M P Smirnova
- Research Institute of Highly Pure Biopreparations, Pudozhsakya str., St. Petersburg, 197110, Russia
| | - N I Kolodkin
- Research Institute of Highly Pure Biopreparations, Pudozhsakya str., St. Petersburg, 197110, Russia
| | - I V Manukhov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1, 1st Dorozhny pr., Moscow, 113545, Russia.,Moscow Institute of Physics and Technology (State University), 9 Institutskiy per., Dolgoprudnyi, 141701, Russia
| | - G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1, 1st Dorozhny pr., Moscow, 113545, Russia
| | - E A Sizova
- All-Russia Research Institute of Beef Cattle Breeding, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia.,Orenburg State University, Pobedy str., Orenburg, 13, Russia
| | - O L Kartashova
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia
| | - A S Simbirtsev
- Research Institute of Highly Pure Biopreparations, Pudozhsakya str., St. Petersburg, 197110, Russia
| | - E A Rogozhin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, ul. Miklukho-Maklaya, 16, Orenburg, /10, Russia.,Gause Institute of New Antibiotics, ul. Bolshaya Pirogovskaya, Moscow, 11, Russia
| | - G K Duskaev
- All-Russia Research Institute of Beef Cattle Breeding, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia
| | - M V Sycheva
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, ul. Pionerskaya, Orenburg, 11, Russia.,Orenburg State Agrarian University, ul. Chelyuskintsev, Orenburg, 18, Russia
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15
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Kudryavtseva AA, Osetrova MS, Livinyuk VY, Manukhov IV, Zavilgelsky GB. [The importance of C-terminal aspartic acid residue (D141) to the antirestriction activity of the ArdB (R64) protein]. Mol Biol (Mosk) 2017; 51:831-835. [PMID: 29116070 DOI: 10.7868/s002689841705010x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 02/28/2017] [Indexed: 11/23/2022]
Abstract
Antirestriction proteins of the ArdB/KlcA family are specific inhibitors of restriction (endonuclease) activity of type-I restriction/modification enzymes. The effect of conserved amino acid residues on the antirestriction activity of the ArdB protein encoded by the transmissible R64 (IncI1) plasmid has been investigated. An analysis of the amino acid sequences of ArdB homologues demonstrated the presence of four groups of conserved residues ((1) R16, E32, and W51; (2) Y46 and G48; (3) S81, D83 and E132, and (4) N77, L(I)140, and D141) on the surface of the protein globule. Amino acid residues of the fourth group showed a unique localization pattern with the terminal residue protruding beyond the globule surface. The replacement of two conserved amino acids (D141 and N77) located in the close vicinity of each other on the globule surface showed that the C-terminal D141 is essential for the antirestriction activity of ArdB. The deletion of this residue, as well as replacement by a hydrophobic threonine residue (D141T), completely abolished the antirestriction activity of ArdB. The synonymous replacement of D141 by a glutamic acid residue (D141E) caused an approximately 30-fold decrease of the antirestriction activity of ArdB, and the point mutation N77A caused an approximately 20-fold decrease in activity. The residues D141 and N77 located on the surface of the protein globule are presumably essential for the formation of a contact between ArdB and a currently unknown factor that modulates the activity of type-I restriction/modification enzymes.
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Affiliation(s)
- A A Kudryavtseva
- Moscow Institute of Physics and Technology (State University) (MFTI) , Dolgoprudnyi, Moscow oblast, 141700 Russia
| | - M S Osetrova
- Moscow Institute of Physics and Technology (State University) (MFTI) , Dolgoprudnyi, Moscow oblast, 141700 Russia.,State Research Institute of Genetics and Selection of Industrial Microorganisms, (GosNIIGenetika), Moscow, 117545 Russia
| | - V Ya Livinyuk
- Moscow Institute of Physics and Technology (State University) (MFTI) , Dolgoprudnyi, Moscow oblast, 141700 Russia
| | - I V Manukhov
- Moscow Institute of Physics and Technology (State University) (MFTI) , Dolgoprudnyi, Moscow oblast, 141700 Russia.,State Research Institute of Genetics and Selection of Industrial Microorganisms, (GosNIIGenetika), Moscow, 117545 Russia
| | - G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, (GosNIIGenetika), Moscow, 117545 Russia.,
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Kudryavtseva AA, Osetrova MS, Livinyuk VY, Manukhov IV, Zavilgelsky GB. The importance of C-terminal aspartic acid residue (D141) to the antirestriction activity of the ArdB (R64) protein. Mol Biol 2017. [DOI: 10.1134/s0026893317050119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Balabanov VP, Khrulnova SA, Kotova VY, Zavilgelsky GB. Ammonium perchlorate detection in natural environments using specific lux biosensors. Russ J Phys Chem B 2017. [DOI: 10.1134/s1990793117040133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Melkina OE, Goryanin II, Zavilgelsky GB. Histone-like protein H-NS as a negative regulator of quorum sensing systems in gram-negative bacteria. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417020065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Melkina OE, Goryanin II, Zavilgelsky GB. [Histone-like protein H-NS as a negative regulator of quorum sensing systems in gram-negative bacteria]. Genetika 2017; 53:165-172. [PMID: 29372963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effects of histone-like protein H-NS on transcription of promoters of the Quorum Sensing regulated operons from marine luminescent mesophilic bacterium Aliivibrio fischeri and psychrophilic Aliivibrio logei, as well as from pathogenic Pseudomonas aeruginosa, are studied. In the present work, the plasmids carrying DNA fragments with the promoters Pr1f (upstream of the luxICDABEG operon from A. fischeri), Pr1l (upstream of the luxCDABEG operon from A. logei), Pr2l (upstream of luxI gene from A. logei), PluxCf (upstream of luxC gene from A. fischeri), and PlasI (upstream of lasI gene from P. aerugenosa) are used. In these plasmids, promoter-operator regions are transcriptionally fused to the reporter genes cassette luxCDABE from Photorhabdus luminescens. Here we have shown that the transcription of the QS-regulated promoters in E. coli hns::kan cells increases 100 to 1000 times. Furthermore, transcription of the QS-regulated promoters in E. coli hns + cells increases 10 to 100 times in the cells transformed with the plasmid carrying gene ardA ColIb-P9 encoding DNA mimic antirestriction protein ArdA, inhibitor of the type I restriction-modification systems.
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Melkina OE, Kotova VY, Konopleva MN, Manukhov IV, Pustovoit KS, Zavilgelsky GB. [Photoreactivation of UV-irradiated Escherichia coli K12 AB1886 uvrA6 with assistance of luminescence of Photobacterium leiognathi Luciferase]. Mol Biol (Mosk) 2015; 49:1035-40. [PMID: 26710787 DOI: 10.7868/s0026898415060178] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 05/25/2015] [Indexed: 11/23/2022]
Abstract
The bioluminescence induced by luciferases of marine bacteria promotes repair of UV damaged DNA of Escherichia coli AB1886 uvrA6. It is shown that bacterial photolyase that implements photoreactivation activity is the major contributor to DNA repair. However, the intensity of bioluminescence increasing induced by UV-irradiation (SOS-induction) in bacterial cells is not enough for efficient photoreactivation.
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Affiliation(s)
- O E Melkina
- GosNIIgenetika State Research Center, Moscow, 117545 Russia
| | - V Yu Kotova
- GosNIIgenetika State Research Center, Moscow, 117545 Russia
| | - M N Konopleva
- Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region, 141700 Russia
| | - I V Manukhov
- GosNIIgenetika State Research Center, Moscow, 117545 Russia;,Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region, 141700 Russia
| | - K S Pustovoit
- GosNIIgenetika State Research Center, Moscow, 117545 Russia
| | - G B Zavilgelsky
- GosNIIgenetika State Research Center, Moscow, 117545 Russia;,
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Anufrieva NV, Morozova EA, Kulikova VV, Bazhulina NP, Manukhov IV, Degtev DI, Gnuchikh EY, Rodionov AN, Zavilgelsky GB, Demidkina TV. Sulfoxides, Analogues of L-Methionine and L-Cysteine As Pro-Drugs against Gram-Positive and Gram-Negative Bacteria. Acta Naturae 2015. [DOI: 10.32607/20758251-2015-7-4-128-135] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The problem of resistance to antibiotics requires the development of new classes of broad-spectrum antimicrobial drugs. The concept of pro-drugs allows researchers to look for new approaches to obtain effective drugs with improved pharmacokinetic and pharmacodynamic properties. Thiosulfinates, formed enzymatically from amino acid sulfoxides upon crushing cells of genus Allium plants, are known as antimicrobial compounds. The instability and high reactivity of thiosulfinates complicate their use as individual antimicrobial compounds. We propose a pharmacologically complementary pair: an amino acid sulfoxide pro-drug and vitamin B6 - dependent methionine -lyase, which metabolizes it in the patients body. The enzyme catalyzes the - and -elimination reactions of sulfoxides, analogues of L-methionine and L-cysteine, which leads to the formation of thiosulfinates. In the present work, we cloned the enzyme gene from Clostridium sporogenes. Ionic and tautomeric forms of the internal aldimine were determined by lognormal deconvolution of the holoenzyme spectrum and the catalytic parameters of the recombinant enzyme in the - and -elimination reactions of amino acids, and some sulfoxides of amino acids were obtained. For the first time, the possibility of usage of the enzyme for effective conversion of sulfoxides was established and the antimicrobial activity of thiosulfinates against Gram-negative and Gram-positive bacteria in situ was shown.
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Melkina OE, Kotova VY, Konopleva MN, Manukhov IV, Pustovoit KS, Zavilgelsky GB. Photoreactivation of UV-exposed Escherichia coli K12 AB1886 uvrA6 via luminescence of Photobacterium leiognathi luciferase. Mol Biol 2015. [DOI: 10.1134/s0026893315060175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Anufrieva NV, Morozova EA, Kulikova VV, Bazhulina NP, Manukhov IV, Degtev DI, Gnuchikh EY, Rodionov AN, Zavilgelsky GB, Demidkina TV. Sulfoxides, Analogues of L-Methionine and L-Cysteine As Pro-Drugs against Gram-Positive and Gram-Negative Bacteria. Acta Naturae 2015; 7:128-35. [PMID: 26798500 PMCID: PMC4717258] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The problem of resistance to antibiotics requires the development of new classes of broad-spectrum antimicrobial drugs. The concept of pro-drugs allows researchers to look for new approaches to obtain effective drugs with improved pharmacokinetic and pharmacodynamic properties. Thiosulfinates, formed enzymatically from amino acid sulfoxides upon crushing cells of genus Allium plants, are known as antimicrobial compounds. The instability and high reactivity of thiosulfinates complicate their use as individual antimicrobial compounds. We propose a pharmacologically complementary pair: an amino acid sulfoxide pro-drug and vitamin B6 - dependent methionine γ-lyase, which metabolizes it in the patient's body. The enzyme catalyzes the γ- and β-elimination reactions of sulfoxides, analogues of L-methionine and L-cysteine, which leads to the formation of thiosulfinates. In the present work, we cloned the enzyme gene from Clostridium sporogenes. Ionic and tautomeric forms of the internal aldimine were determined by lognormal deconvolution of the holoenzyme spectrum and the catalytic parameters of the recombinant enzyme in the γ- and β-elimination reactions of amino acids, and some sulfoxides of amino acids were obtained. For the first time, the possibility of usage of the enzyme for effective conversion of sulfoxides was established and the antimicrobial activity of thiosulfinates against Gram-negative and Gram-positive bacteria in situ was shown.
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Affiliation(s)
- N. V. Anufrieva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova Str., 32, Moscow, 119991, Russia
| | - E. A. Morozova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova Str., 32, Moscow, 119991, Russia
| | - V. V. Kulikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova Str., 32, Moscow, 119991, Russia
| | - N. P. Bazhulina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova Str., 32, Moscow, 119991, Russia
| | - I. V. Manukhov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1-st Dorozhniy pr., 1 , Moscow, 117545, Russia
| | - D. I. Degtev
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1-st Dorozhniy pr., 1 , Moscow, 117545, Russia
| | - E. Yu. Gnuchikh
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1-st Dorozhniy pr., 1 , Moscow, 117545, Russia
| | - A. N. Rodionov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova Str., 32, Moscow, 119991, Russia
| | - G. B. Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 1-st Dorozhniy pr., 1 , Moscow, 117545, Russia
| | - T. V. Demidkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova Str., 32, Moscow, 119991, Russia
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Zavilgelsky GB, Melkina OE, Kotova VY, Konopleva MN, Manukhov IV, Pustovoit KS. Photoreactivating activity of bioluminescence: Repair of UV-Damaged Escherichia coli DNA proceeds with assistance of the lux genes of marine bacteria. Biophysics (Nagoya-shi) 2015. [DOI: 10.1134/s0006350915050243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Zavilgelsky GB, Melkina OE, Kotova VY, Konopleva MN, Manukhov IV, Pustovoit KS. [Photoreactivating Activity of Bioluminescence: Repair of UV-damaged DNA of Escherichia coli Occurs with Assistance of lux-Genes of Marine Bacteria]. Biofizika 2015; 60:898-905. [PMID: 26591600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The UV resistance of luminescent bacteria Escherichia coli AB1886 uvrA6 (pLeo1) containing the plasmid with luxCDABE genes of marine bacteria Photobacterium leiognathi is approximately two times higher than the UV resistance of non-luminous bacteria E. coli AB1886 uvrA6. Introduction of phr::kan(r) mutations (a defect in the functional activity of photolyase) into the genome of E. coli AB1886 uvrA6 (pLeo1) completely removes the high UV resistance of the cells. Therefore, photoreactivation that involves bacterial photolyase contributes mainly to the bioluminescence-induced DNA repair. It is shown that photoreactivating activity of bioluminescence of P. leiognathi is about 2.5 times lower compared with that one induced by a light source with λ > 385 nm. It is also shown that an increase in the bioluminescence intensity, induced by UV radiation in E. coli bacterial cells with a plasmid containing the luxCD ABE genes under RecA-LexA-regulated promoters, occurs only 25-30 min later after UV irradiation of cells and does not contribute to DNA repair. A quorum sensing regulatory system is not involved in the DNA repair by photolyase.
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Zavilgelsky GB, Kotova VY, Melkina OE, Balabanov VP, Mindlin SZ. Proteolytic control of the antirestriction activity of Tn21, Tn5053, Tn5045, Tn501, and Tn402 non-conjugative transposons. Mol Biol 2015. [DOI: 10.1134/s0026893315020168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zavilgelsky GB, Kotova VY, Melkina OE, Balabanov VP, Mindlin SZ. [Proteolytic control of the antirestriction activity of Tn2l, Tn5053, Tn5045 Tn501 TN402 non-conjugative transposons]. Mol Biol (Mosk) 2015; 49:334-341. [PMID: 26065261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Conjugative plasmids and conjugative transposons contain the genes, which products specifically inhibit the type I restriction--modification systems. Here is shown that non-conjugative transposons Tn2l, Tn5053, Tn5045, Tn501, Tn402 partially inhibit the restriction activity of the type I restriction-modification endonuclease EcoKI (R2M2S1) in Escherichia coli cells K12 (the phenomenon of restriction alleviation, RA). Antirestriction activity of the transposons is determined by the MerR and ArdD proteins. Antirestriction activity of transposons is absent in mutants E. coli K12 clpX and clpP and is decreased in mutants E. coli K12 recA, recBC and dnaQ (mutD). Induction of the RA in response to the MerR and ArdD activities is consistent with the production of unmodified target sequences following DNA repair and DNA synthesis associated with recombination repair or replication errors. RA effect is determined by the ClpXP-dependent degradation of the endonuclease activity R subunit of EcoKI (R2M2S1).
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Kotova VY, Mironov AS, Zavilgelsky GB. Role of reactive oxygen species in the bactericidal action of quinolones as inhibitors of DNA gyrase. Mol Biol 2014. [DOI: 10.1134/s0026893314060107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zavilgelsky GB, Kotova VY, Melkina OE, Pustovoit KS. Antirestriction activity of the mercury resistance nonconjugative transposon Tn5053 is controlled by the protease ClpXP. RUSS J GENET+ 2014. [DOI: 10.1134/s1022795414090166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Melkina OE, Goryanin II, Manukhov IV, Baranova AV, Kolb VA, Svetlov MS, Zavilgelsky GB. Trigger factor assists the refolding of heterodimeric but not monomeric luciferases. Biochemistry (Mosc) 2014; 79:62-8. [PMID: 24512665 DOI: 10.1134/s000629791401009x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
The refolding of thermally inactivated protein by ATP-independent trigger factor (TF) and ATP-dependent DnaKJE chaperones was comparatively analyzed. Heterodimeric (αβ) bacterial luciferases of Aliivibrio fischeri, Photobacterium leiognathi, and Vibrio harveyi as well as monomeric luciferases of Vibrio harveyi and Luciola mingrelica (firefly) were used as substrates. In the presence of TF, thermally inactivated heterodimeric bacterial luciferases refold, while monomeric luciferases do not refold. These observations were made both in vivo (Escherichia coli ΔdnaKJ containing plasmids with tig gene) and in vitro (purified TF). Unlike TF, the DnaKJE chaperone system refolds both monomeric and heterodimeric luciferases with equal efficiency.
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Affiliation(s)
- O E Melkina
- Research Institute for Genetics and Selection of Industrial Microorganisms (GosNIIGenetika), Moscow, 117545, Russia.
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Kotova VY, Ryzhenkova KV, Manukhov IV, Zavilgelsky GB. Inducible specific lux-biosensors for the detection of antibiotics: Construction and main parameters. APPL BIOCHEM MICRO+ 2013. [DOI: 10.1134/s0003683814010074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Balabanov VP, Pustovoit KS, Zavilgelsky GB. Comparative analysis of antirestriction activity of the ArdA and ArdB proteins encoded by genes of the R64 transmissible plasmid (IncI1). Mol Biol 2012. [DOI: 10.1134/s0026893312010025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zavilgelsky GB, Kotova VY, Manukhov IV. Titanium dioxide (TiO2) nanoparticles induce bacterial stress response detectable by specific lux biosensors. ACTA ACUST UNITED AC 2011. [DOI: 10.1134/s1995078011030165] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mel’kina OE, Manukhov IV, Zavilgelsky GB. Proteolytic control of expression of Vibrio fischeri lux-operon genes in Escherichia coli cells. RUSS J GENET+ 2010. [DOI: 10.1134/s1022795410080041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mel’kina OE, Manukhov IV, Zavilgelsky GB. The C-terminal domain of the Vibrio fischeri transcription activator LuxR is not essential for degradation by Lon protease. Mol Biol 2010. [DOI: 10.1134/s0026893310030143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Khrulnova SA, Manukhov IV, Zarubina AP, Zavilgelsky GB. Aliivibrio logei KCh1 (Kamchatka isolate): Biochemical and bioluminescence characteristics and cloning of the lux operon. Microbiology (Reading) 2010. [DOI: 10.1134/s0026261710030112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Zavilgelsky GB, Rastorguev SM. Antirestriction proteins ArdA and Ocr as efficient inhibitors of type I restriction-modification enzymes. Mol Biol 2009. [DOI: 10.1134/s0026893309020071] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zavilgelsky GB, Kotova VY, Rastorguev SM. Antirestriction and antimodification activities of T7 Ocr: Effects of amino acid substitutions in the interface. Mol Biol 2009. [DOI: 10.1134/s0026893309010130] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kotova VY, Manukhov IV, Melkina OE, Zavilgelsky GB. Mutation clpA::kan of the gene for an Hsp100 family chaperone impairs the DnaK-dependent refolding of proteins in Escherichia coli. Mol Biol 2008. [DOI: 10.1134/s0026893308060113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zavilgelsky GB, Kotova VY, Rastorguev SM. Comparative analysis of anti-restriction activities of ArdA (ColIb-P9) and Ocr (T7) proteins. Biochemistry (Mosc) 2008; 73:906-11. [PMID: 18774937 DOI: 10.1134/s0006297908080087] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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
Anti-restriction proteins ArdA and Ocr are specific inhibitors of type I restriction-modification enzymes. The IncI1 transmissible plasmid ColIb-P9 ardA and bacteriophage T7 0.3(ocr) genes were cloned in pUC18 vector. Both ArdA (ColIb-P9) and Ocr (T7) proteins inhibit both restriction and modification activities of the type I restriction-modification enzyme (EcoKI) in Escherichia coli K12 cells. ColIb-P9 ardA, T7 0.3(ocr), and the Photorhabdus luminescens luxCDABE genes were cloned in pZ-series vectors with the P(ltetO-1) promoter, which is tightly repressible by the TetR repressor. Controlling the expression of the lux-genes encoding bacterial luciferase demonstrates that the P(ltetO-1) promoter can be regulated over an up to 5000-fold range by supplying anhydrotetracycline to the E. coli MG1655Z1 tetR(+) cells. Effectiveness of the anti-restriction activity of the ArdA and Ocr proteins depended on the intracellular concentration. It is shown that the dissociation constants K(d) for ArdA and Ocr proteins with EcoKI enzyme differ 1700-fold: K(d) (Ocr) = 10(-10) M, K(d) (ArdA) = 1.7.10(-7) M.
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Affiliation(s)
- G B Zavilgelsky
- State Research Institute of Genetics and Selection of Industrial Microorganisms, Moscow, Russia.
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Zavilgelsky GB, Rastorguev SM. DNA mimicry by proteins as effective mechanism for regulation of activity of DNA-dependent enzymes. Biochemistry Moscow 2007; 72:913-9, 4 p. following 982. [DOI: 10.1134/s0006297907090015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zavilgelsky GB, Kotova VY, Manukhov IV. Action of 1,1-dimethylhydrazine on bacterial cells is determined by hydrogen peroxide. Mutat Res 2007; 634:172-6. [PMID: 17869570 DOI: 10.1016/j.mrgentox.2007.07.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [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: 12/13/2006] [Revised: 04/20/2007] [Accepted: 07/04/2007] [Indexed: 11/23/2022]
Abstract
Seven different recombinant bioluminescent strains of Escherichia coli containing, respectively, the promoters katG and soxS (responsive to oxidative damage), recA (DNA damage), fabA (membrane damage), grpE, and rpoE (protein damage) and lac (constitutive expression) fused to the bacterial operon from Photorhabdus luminescens, were used to describe the mechanism of toxicity of 1,1-dimethylhydrazine (1,1-DMH) on bacteria, as well as to determine whether bacteria can sensitively detect the presence of this compound. A clear response to 1,1-DMH was observed only in E. coli carrying the katG'::lux, soxS'::lux, and recA'::lux-containing constructs. Preliminary treatment with catalase of the medium containing 1,1-DMH completely diminished the stress-response of the P(katG), P(recA), and P(soxS) promoters. In the strain E. coli (pXen7), which contains a constitutive promoter, the level of cellular toxicity caused by the addition of 1,1-DMH was dramatically reduced in the presence of catalase. It is suggested that the action of 1,1-DMH on bacterial cells is determined by hydrogen peroxide, which is formed in response to reduction of the air oxygen level.
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Affiliation(s)
- G B Zavilgelsky
- State Institute of Genetics and Selection of Industrial Microorganisms, 1st Dorozhnii pr 1, Moscow, Russia
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Manukhov IV, Mamaeva DV, Morozova EA, Rastorguev SM, Faleev NG, Demidkina TV, Zavilgelsky GB. L-methionine γ-lyase from Citrobacter freundii: Cloning of the gene and kinetic parameters of the enzyme. Biochemistry (Moscow) 2006; 71:361-9. [PMID: 16615855 DOI: 10.1134/s0006297906040031] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
It is shown for the first time for the Enterobacteriaceae family that a gene encoding L-methionine gamma-lyase (MGL) is present in the genome of Citrobacter freundii. Homogeneous enzyme has been purified from C. freundii cells and its N-terminal sequence has been determined. The hybrid plasmid pUCmgl obtained from the C. freundii genomic library contains an EcoRI insert of about 3000 bp, which ensures the appearance of MGL activity when expressed in Escherichia coli TG1 cells. The nucleotide sequence of the EcoRI fragment contains two open reading frames. The first frame (the megL gene) encodes a protein of 398 amino acid residues that has sequence homology with MGLs from different sources. The second frame encodes a protein with sequence homology with proteins belonging to the family of permeases. To overexpress the megL gene it was cloned into pET-15b vector. Recombinant enzyme has been purified and its kinetic parameters have been determined. It is demonstrated that a presence of a hybrid plasmid pUCmgl, containing the megL gene in the E. coli K12 cells, leads to a decrease in efficiency of EcoKI-restriction. It seems likely that decomposition of L-methionine under the action of MGL leads to a decrease in the intracellular content of S-adenosylmethionine. Expression of the megL gene in the C. freundii genome occurs only upon induction by a significant amount of L-methionine.
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Affiliation(s)
- I V Manukhov
- State Research Institute of Genetics and Selection of Industrial Microorganisms, 117545 Moscow, Russia
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Manukhov IV, Kotova VY, Zavilgelsky GB. GroEL/GroES chaperone and Lon protease regulate expression of the Vibrio fischeri lux operon in Escherichia coli. Mol Biol 2006. [DOI: 10.1134/s0026893306020099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Zavilgelsky GB, Letuchaya TA, Rastorguev SM. Antirestriction and antimodification activities of the ArdA protein encoded by the IncI1 transmissive plasmids R-64 and ColIb-P9. RUSS J GENET+ 2006. [DOI: 10.1134/s1022795406030045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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