1
|
|
2
|
Lisitsyn NA, Chernyi AA, Karpov VL, Beresten SF. [A role of long noncoding RNAs in carcinogenesis]. Mol Biol (Mosk) 2015; 49:561-70. [PMID: 26299855 DOI: 10.7868/s0026898415040102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 10/27/2014] [Accepted: 01/22/2015] [Indexed: 11/23/2022]
Abstract
The review describes the changes observed in long noncoding RNA (lncRNA) content and function at various stages of carcinogenesis, as well as the prospects of lncRNA application in cancer prognosis.
Collapse
Affiliation(s)
- N A Lisitsyn
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia.,
| | - A A Chernyi
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
| | - V L Karpov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
| | - S F Beresten
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
| |
Collapse
|
3
|
|
4
|
Nikitina IG, Sabirova EY, Solopova ON, Surzhikov SA, Grineva EN, Karpov VL, Lisitsyn NA, Beresten SF. A new immuno-PCR format for serological diagnosis of colon cancer. Mol Biol 2014. [DOI: 10.1134/s0026893313060095] [Citation(s) in RCA: 7] [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]
|
5
|
Bukurova YA, Krasnov GS, Nikitina IG, Karpov VL, Lisitsyn NA, Beresten SF. Methods of searching for markers for serological serum diagnosis of tumors. Mol Biol 2013. [DOI: 10.1134/s0026893313010032] [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]
|
6
|
Nikitina IG, Bukurova YA, Khankin SL, Karpov VL, Lisitsyn NA, Beresten SF. Secretion of enteric α-defensin 5 into bloodstream by colon tumors. Mol Biol 2013. [DOI: 10.1134/s0026893313010093] [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]
|
7
|
Nikitina IG, Bukurova YA, Krasnov GS, Grineva EN, Karpov VL, Lisitsyn NA, Beresten SF. Structure and function of enteric α-defensins in norm and pathology. Mol Biol 2012. [DOI: 10.1134/s0026893311060094] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
8
|
Grigorieva ES, Bukurova YA, Krasnov GS, Afanas’ev SG, Cherdyntseva NV, Tuzikov SA, Choinzonov EL, Karpov VL, Lisitsyn NA, Beresten SF. Identification of proteins overexpressed in malignant gastric tumors: Comparison of results obtained by 2DE and bioinformatic search. Mol Biol 2011. [DOI: 10.1134/s0026893311030058] [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]
|
9
|
Bukurova YA, Nikitina IG, Khankin SL, Krasnov GS, Lisitsyn NA, Karpov VL, Beresten SF. Search for protein markers for serum diagnostics of tumors by analysis of microRNA expression profiles. Mol Biol 2011. [DOI: 10.1134/s0026893311020038] [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: 01/06/2023]
|
10
|
Sipina LV, Bukurova YA, Nikitina IG, Krasnov GS, Sergeev SA, Lisitsyn NA, Karpov VL, Beresten SF. Identification of proteins overexpressed in papillary thyroid tumors. Biochemistry (Mosc) 2011; 75:1148-52. [PMID: 21077834 DOI: 10.1134/s0006297910090087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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 modified method of proteome comparative analysis based on preliminary removal of cell structural proteins by extraction using salt buffer and subsequent separation of extracts by two-dimensional gel electrophoresis was developed. Identification of differentially expressed proteins by mass spectrometry has revealed three proteins with noticeably increased level of synthesis in most samples of papillary thyroid tumors compared to normal tissues. An increase in ubiquitin content was found for the first time. Oncomarker search efficiencies by two-dimensional gel electrophoresis and bioinformatic search were compared.
Collapse
Affiliation(s)
- L V Sipina
- Clinical Research Center PreMed, Moscow, 121357, Russia.
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Kropotova ES, Tychko RA, Zinov’eva OL, Zyryanova AF, Khankin SL, Cherkes VL, Aliev VA, Beresten SF, Oparina NY, Mashkova TD. Downregulation of AKR1B10 expression in colorectal cancer. Mol Biol 2010. [DOI: 10.1134/s0026893310020056] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Krasnov GS, Khankin SL, Bukurova YA, Zatsepina OG, Oparina NY, Garbuz DG, Ershov AN, Mashkova TD, Karpov VL, Beresten SF. Proteomic expression analysis of human colorectal cancer: Identification of soluble overexpressed proteins. Mol Biol 2009. [DOI: 10.1134/s0026893309040050] [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: 11/22/2022]
|
13
|
Krasnov GS, Oparina NY, Hankin SL, Mashkova TD, Ershov AN, Zatsepina OG, Karpov VL, Beresten SF. Identification of proteins with altered expression in colorectal cancer by means of 2D-proteomics. Mol Biol 2009. [DOI: 10.1134/s0026893309020149] [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]
|
14
|
Hu P, Beresten SF, van Brabant AJ, Ye TZ, Pandolfi PP, Johnson FB, Guarente L, Ellis NA. Evidence for BLM and Topoisomerase IIIalpha interaction in genomic stability. Hum Mol Genet 2001; 10:1287-98. [PMID: 11406610 DOI: 10.1093/hmg/10.12.1287] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The genomic instability of persons with Bloom's syndrome (BS) features particularly an increased number of sister-chromatid exchanges (SCEs). The primary cause of the genomic instability is mutation at BLM, which encodes a DNA helicase of the RecQ family. BLM interacts with Topoisomerase IIIalpha (Topo IIIalpha), and both BLM and Topo IIIalpha localize to the nuclear organelles referred to as the promyelocytic leukemia protein (PML) nuclear bodies. In this study we show, by analysis of cells that express various deletion constructs of green fluorescent protein (GFP)-tagged BLM, that the first 133 amino acids of BLM are necessary and sufficient for interaction between Topo IIIalpha and BLM. The Topo IIIalpha-interaction domain of BLM is not required for BLM's localization to the PML nuclear bodies; in contrast, Topo IIIalpha is recruited to the PML nuclear bodies via its interaction with BLM. Expression of a full-length BLM (amino acids 1-1417) in BS cells can correct their high SCEs to normal levels, whereas expression of a BLM fragment that lacks the Topo IIIalpha interaction domain (amino acids 133-1417) results in intermediate SCE levels. The deficiency of amino acids 133-1417 in the reduction of SCEs was not explained by a defect in DNA helicase activity, because immunoprecipitated 133-1417 protein had 4-fold higher activity than GFP-BLM. The data implicate the BLM-Topo IIIalpha complex in the regulation of recombination in somatic cells.
Collapse
Affiliation(s)
- P Hu
- Laboratory of Cancer Susceptibility, Department of Human Genetics and the Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Zatsepina OG, Ulmasov KA, Beresten SF, Molodtsov VB, Rybtsov SA, Evgen'ev MB. Thermotolerant desert lizards characteristically differ in terms of heat-shock system regulation. J Exp Biol 2000; 203:1017-25. [PMID: 10683161 DOI: 10.1242/jeb.203.6.1017] [Citation(s) in RCA: 51] [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: 11/20/2022]
Abstract
We compare the properties and activation of heat-shock transcription factor (HSF1) and the synthesis of a major family of heat-shock proteins (HSP70) in lizard species inhabiting ecological niches with strikingly different thermal parameters. Under normal non-heat-shock conditions, all desert-dwelling lizard species studied so far differ from a northern, non-desert species (Lacerta vivipara) in the electrophoretic mobility and content of proteins constitutively bound to the regulatory heat-shock elements in the heat-shock gene promoter. Under these conditions, levels of activated HSF1 and of both HSP70 mRNA and protein are higher in the desert species than in the non-desert species. Upon heat shock, HSF1 aggregates in all species studied, although in desert species HSF1 subsequently disaggregates more rapidly. Cells of the northern species have a lower thermal threshold for HSP expression than those of the desert species, which correlates with the relatively low constitutive level of HSPs and high basal content of HSF1 in their cells.
Collapse
Affiliation(s)
- O G Zatsepina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 117984, Russia
| | | | | | | | | | | |
Collapse
|
16
|
Beresten SF, Stan R, van Brabant AJ, Ye T, Naureckiene S, Ellis NA. Purification of overexpressed hexahistidine-tagged BLM N431 as oligomeric complexes. Protein Expr Purif 1999; 17:239-48. [PMID: 10545272 DOI: 10.1006/prep.1999.1135] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [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: 01/14/2023]
Abstract
BLM is a DNA helicase encoded by a gene which is mutated in persons with Bloom's syndrome. The protein is a member of the RecQ subfamily of helicases and contains a central domain constituted by the seven motifs conserved in all helicases. In contrast, the N-terminal portion of BLM lacks similarity to any other known proteins or motifs. We have expressed the first 431 amino acids of this domain as a fusion to a hexahistidine tag (BLM N431) in Escherichia coli. A method of purification was developed which involves elution from Ni-NTA resin in imidazole and EDTA, followed by treatment with DTT and gel filtration on Sephacryl-300. The treatment with EDTA and DTT prevents and disrupts aggregation of BLM N431. The purified protein appears to form hexamers and dodecamers, suggesting that the N-terminal domain of BLM is involved in the organization of the quaternary structure of BLM.
Collapse
Affiliation(s)
- S F Beresten
- Department of Human Genetics, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York, 10021, USA
| | | | | | | | | | | |
Collapse
|
17
|
Popenko VI, Ivanova JL, Cherny NE, Filonenko VV, Beresten SF, Wolfson AD, Kisselev LL. Compartmentalization of certain components of the protein synthesis apparatus in mammalian cells. Eur J Cell Biol 1994; 65:60-9. [PMID: 7889996] [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: 01/27/2023] Open
Abstract
A comparative study on the localization of free cytosolic tryptophanyl-tRNA synthetase (TrpRS) and several components of the multi-aminoacyl-tRNA synthetase (ARS) complex (glutamyl-prolyl-tRNA synthetase (GluProRS), arginyl-tRNA synthetase (ArgRS)), and two non-synthetase polypeptides p38 and p43 has been carried out on ultrathin sections of cultured rabbit kidney cells by the immunogold technique using monoclonal antibodies raised against appropriate polypeptides. It has been shown that GluProRS, ArgRS and p38 polypeptide are distributed in the cells similarly to TrpRS and are located mainly in the vicinity of ribosomes. A smaller but significant portion of these proteins has been observed in the nuclei in the diffuse chromatin regions and in the vicinity of interchromatin granules. On the contrary, the main part of p43 protein was found in the cell nuclei; this indicates that this protein may exist in the cell separately from the cytoplasmic multi-ARS complex. Our results argue in favor of compartmentalization of both free ARS (such as TrpRS) and the multi-ARS complex in the vicinity of ribosomes. At the same time, the detection of some ARS in the diffuse chromatin regions in the nucleus implies that these enzymes may exhibit some non-canonical functions in addition to their role in protein synthesis.
Collapse
Affiliation(s)
- V I Popenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow
| | | | | | | | | | | | | |
Collapse
|
18
|
Popenko VI, Cherny NE, Beresten SF, Ivanova JL, Filonenko VV, Kisselev LL. Immunoelectron microscopic location of tryptophanyl-tRNA synthetase in mammalian, prokaryotic and archaebacterial cells. Eur J Cell Biol 1993; 62:248-58. [PMID: 7925483] [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: 01/27/2023] Open
Abstract
Monoclonal antibody Am1 against conservative epitope of tryptophanyl-tRNA synthetase (WRS) was labeled with colloidal gold particles and used to localize the enzyme on ultrathin sections of eubacteria (Escherichia coli), archaebacteria (Methanococcus halophilus), rat pancreas tissue and rat fibroblasts (cell line RAT1). In all cell types immunoelectron microscopy revealed predominant cytoplasmic location of gold particles, as this could be expected from known biochemical data. In particular, in mammalian cells intensive labeling was observed in cytoplasmic regions rich in polysomes and free ribosomes. At the same time, the label was virtually absent in cytoplasmic regions where microfilament bundles were present. Significant concentrations of gold particles were found in mitochondria and nuclei. In the latter case, gold particles were located over diffuse chromatin regions and were virtually absent over compact chromatin. The density of diffuse chromatin in labeling may amount to about 50% of that found in the cytoplasm. Distribution of labeled antibodies over E. coli cells looks rather similar to that found for M. halophilus: gold particles are preferably concentrated over the cytoplasm and "boundary zone", i.e., a 30 nm wide cytoplasmic zone adjacent to the nucleoid border, while the label over nucleoid is virtually absent. Two main conclusions are drawn: (i) although in the animal cell homogenates WRS is recovered mainly as a soluble cytosolic enzyme, in intact cells it is associated with defined cellular organelles and compartments; this may be an evolutionarily acquired feature probably typical for multicellular organisms; (ii) the considerable density of labeling in diffuse (not compact) chromatin regions may be indicative of WRS involvement in the active chromatin functions (transcription, processing, transfer of gene products, etc.).
Collapse
Affiliation(s)
- V I Popenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow
| | | | | | | | | | | |
Collapse
|
19
|
Sidorik LL, Gudzera OI, Dragovoz VA, Tukalo MA, Beresten SF. Immuno-chemical non-cross-reactivity between eukaryotic and prokaryotic seryl-tRNA synthetases. FEBS Lett 1991; 292:76-8. [PMID: 1959633 DOI: 10.1016/0014-5793(91)80838-t] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Monospecific polyclonal antibodies (pAbs) against highly purified bovine seryl-tRNA synthetase (SerRS, EC 6.1.1.1) were prepared and their specificity tested. The interactions of pAbs with SerRS from different organisms were investigated by protein immunoblotting and ELISA methods. pAbs inhibit eukaryotic SerRS aminoacylating activity and exert no effect on SerRS activity from prokaryotes. It is proposed that prokaryotic and eukaryotic SerRS evolve from different ancestor genes.
Collapse
Affiliation(s)
- L L Sidorik
- Institute of Molecular Biology and Genetics, Ukrainian Academy of Sciences, Kiev, USSR
| | | | | | | | | |
Collapse
|
20
|
Wolfson AD, Motorin YA, Ribkinska TI, Beresten SF. Purification of mammalian tyrosyl-tRNA synthetase by high-performance liquid chromatography. J Chromatogr A 1990; 503:277-81. [PMID: 2341517 DOI: 10.1016/s0021-9673(01)81511-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- A D Wolfson
- A.N. Bakh Institute of Biochemistry, Academy of Sciences, Moscow, U.S.S.R
| | | | | | | |
Collapse
|
21
|
Favorova OO, Zargarova TA, Rukosuyev VS, Beresten SF, Kisselev LL. Molecular and cellular studies of tryptophanyl-tRNA synthetases using monoclonal antibodies. Remarkable variations in the content of tryptophanyl-tRNA synthetase in the pancreas of different mammals. Eur J Biochem 1989; 184:583-8. [PMID: 2806241 DOI: 10.1111/j.1432-1033.1989.tb15053.x] [Citation(s) in RCA: 26] [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: 01/02/2023]
Abstract
The content of Trp-tRNA synthetase in pancreas and liver of cattle, sheep, swine, rat, rabbit and man was assayed by direct radioimmunoblotting with a 125I-labelled monoclonal antibody Am1, specifically interacting with any eukaryotic Trp-tRNA synthetase. Its content in the organs studied, with the exception of bovine and sheep pancreas, was found to be 0.002-0.012% of total proteins. The enzyme content in bovine pancreas was about 0.2% of total proteins, i.e. 70 times higher than in bovine liver; similar correlations were found for sheep. The Trp-tRNA synthetase levels in each organ varied from animal to animal of the same species by not more than a factor of four; these individual variations cannot affect the conclusion about the profound differences in the levels of the enzyme in pancreases of Ruminantia and of the other mammalians. As shown by indirect immunofluorescence technique, bovine Trp-tRNA synthetase is mainly located in the exocrine part of the pancreas. Moreover, the immunoreactive material is detectable also in bovine (not human) pancreatic juice. The abnormally high Trp-tRNA synthetase content in the ruminant pancreas may be connected with unknown function(s) of this protein somehow related to the peculiarities of digestion of these mammals.
Collapse
Affiliation(s)
- O O Favorova
- V. Engelhardt Institute of Molecular Biology, USSR Academy of Sciences, Moscow
| | | | | | | | | |
Collapse
|
22
|
Beresten SF, Zargarova TA, Favorova OO, Rubikaite BI, Ryazanov AG, Kisselev LL. Molecular and cellular studies of tryptophanyl-tRNA synthetase using monoclonal antibodies. Evaluation of a common antigenic determinant in eukaryotic, prokaryotic and archaebacterial enzymes which maps outside the catalytic domain. Eur J Biochem 1989; 184:575-81. [PMID: 2478363 DOI: 10.1111/j.1432-1033.1989.tb15052.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Monoclonal antibodies referred to as Am1, Am2 and Am3 against highly purified bovine tryptophanyl-tRNA synthetase were prepared. Am2 antibodies inhibit the Trp-tRNA synthetase activity and interact with the active truncated enzyme forms (dimers of either 40-kDa or 51-kDa fragments) produced by limited proteolysis. Am1 and Am3 antibodies exert no effect on the Trp-tRNA synthetase activity; epitopes recognized by them are mapped close to one another and reside at the dispensable part of the Trp-tRNA synthetase molecule. Am1 cross-reacts with Trp-tRNA synthetases of eukaryotic, prokaryotic and archaebacterial species, as revealed by immunoblot analysis. A rapid two-step technique was developed for isolating electrophoretically homogeneous Trp-tRNA synthetase from Escherichia coli. The purified enzyme interacted with Am1, but not with Am2 and Am3 antibodies taken at the same concentrations. As in the case of eukaryotic Trp-tRNA synthetase, Am1 did not influence the activity of Trp-tRNA synthetase from E. coli. From the aforementioned results it follows that: (a) the conservation of part of the Trp-tRNA synthetase structure which is not directly involved in the formation of the catalytic centre of prokaryotic and eukaryotic Trp-tRNA synthetases suggests that the dispensable part of the molecule might be involved in some additional biological function(s) of Trp-tRNA synthetase besides tRNA(Trp) charging; (b) the common antigenic determinant in Trp-tRNA synthetase of eukaryotes, prokaryotes and archaebacteria indicates that this enzyme was presumably present in the common ancestor of the above organisms.
Collapse
Affiliation(s)
- S F Beresten
- Engelhardt Institute of Molecular Biology, USSR Academy of Sciences, Moscow
| | | | | | | | | | | |
Collapse
|
23
|
Filonenko VV, Beresten SF, Rubikaite BI, Kisselev LL. Bovine tryptophanyl-tRNA synthetase and glyceraldehyde-3-phosphate dehydrogenase form a complex. Biochem Biophys Res Commun 1989; 161:481-8. [PMID: 2735904 DOI: 10.1016/0006-291x(89)92624-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [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: 01/02/2023]
Abstract
Bovine tryptophanyl-tRNA synthetase is able to form a complex with glyceraldehyde-3-phosphate dehydrogenase. The complex formation (i) does not influence the tryptophan-dependent PPi-ATP exchange reaction and (ii) involves predominantly the N-terminal dispensable domain of the synthetase. Glyceraldehyde-3-phosphate dehydrogenase was shown to be capable of interacting simultaneously with tryptophanyl-tRNA synthetase and with ribosomal RNA to form a ternary complex. It is proposed that compartmentation of some aminoacyl-tRNA synthetases in certain cases might be achieved via 'adapter' molecules which can bind at once to ribonucleic acids and to aminoacyl-tRNA synthetases.
Collapse
Affiliation(s)
- V V Filonenko
- Engelhardt Institute of Molecular Biology, USSR Academy of Sciences, Moscow
| | | | | | | |
Collapse
|
24
|
Beresten SF, Rubikaite BI, Kisselev LL. A general approach to the localization of antigenic determinants of a linear type in proteins of unknown primary structure. J Immunol Methods 1988; 113:247-54. [PMID: 2459255 DOI: 10.1016/0022-1759(88)90338-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 01/01/2023]
Abstract
A method is proposed which permits the localization of antigenic determinants of a linear type on the polypeptide chain of a protein molecule of unknown primary structure. An antigen modified with maleic anhydride at the amino-terminal groups and at the epsilon-NH2 groups of lysine residues was subjected to partial enzymic digestion, so that the antigenic protein had, on average, less than one cleavage site per polypeptide chain. The resultant ends were labeled with 125I-labeled Bolton and Hunter reagent and the maleic group removed. The detection of the two larger labeled fragments (a longer one which still could bind to a monoclonal antibody and a shorter one which was incapable of binding) made it possible to determine the distance from the antigenic determinant to the C-terminus of the polypeptide chain. The position of the antigenic determinant could be established in more detail using partial chemical degradation of the original antigen using information about the maximal length of a fragment which has lost its ability to interact with the monoclonal antibody. The method has been applied to bovine tryptophanyl-tRNA synthetase (EC 6.1.1.2).
Collapse
Affiliation(s)
- S F Beresten
- Institute of Molecular Biology, U.S.S.R. Academy of Sciences, Moscow
| | | | | |
Collapse
|
25
|
Degtyarev SK, Beresten SF, Lavrik OI, Kisselev LL. Negative cooperativity in adenylate formation catalysed by beef pancreas tryptophanyl-tRNA synthetase: influence of tRNATrp. FEBS Lett 1982; 137:95-9. [PMID: 6917787 DOI: 10.1016/0014-5793(82)80322-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
26
|
|
27
|
Mashkova TD, Mazo AM, Scheinker VS, Beresten SF, Bogdanova SL, Avdonina TA, Kisselev LL. A rapid method for mapping exposed cytosines in polyribonucleotides. Application to tRNATrp (yeast, beef liver). Mol Biol Rep 1980; 6:83-7. [PMID: 6997728 DOI: 10.1007/bf00778434] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A rapid method for mapping exposed cytosine residues in 5'-[32P]-labeled RNA molecules is suggested. The exposed cytosines (C's) are converted into uracyls (U's) by bisulphite treatment at pH 5.8 in the presence of Mg2+, followed by complete modification of the residual (non-exposed) C's by a methoxyamine and bisulphite mixture at pH 5.0. The control RNA is modified only by methoxyamine and bisulphite without the preliminary C leads to U conversion. The location of the exposed C's is determined by comparing the products of partial T1, T2, A and U2 ribonuclease digestions of the C leads to U converted and control RNAs after slab gel polyacrylamide electrophoresis and autoradiography. The method has been applied for mapping exposed cytosine bases in tRNATrp (yeast) which have been found in the anti-codon loop and at the 3'-end of the molecule. In tRNATrp (beef liver), in addition to the same exposed bases, C in the diHU-loop is exposed. The data obtained are in full agreement with what is known about exposed C's for other tRNAs.
Collapse
|
28
|
Scheinker VS, Beresten SF, Degtyarev SK, Kisselev LL. The effect of tRNA and tryptophanyl adenylate on limited proteolysis of beef pancreas tryptophanyl-tRNA synthetase. Nucleic Acids Res 1979; 7:625-37. [PMID: 503841 PMCID: PMC328043 DOI: 10.1093/nar/7.3.625] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Limited proteolysis of tryptophanyl-tRNA synthetase was used to detect changes in the enzyme molecule in the presence of substrates. Trypsinolysis of each of the two identical subunits occurs in succession from the N-terminus as follows: 60 leads to 51 leads to 40 leads to 24 kilodaltons. The transition 51 leads to 40 is hindered in tryptophanyl adenylate.enzyme complex. Yeast tRNATrp accelerates the first steps of hydrolysis and decelerates the transition 40 leads to 24. Once tRNATrp is added to the synthetase.adenylate complex, the protective effect of the adenylate disappears. The same effects are found also in the presence of tRNATrp oxidized with NaI04 and tRNATrp lacking the 3'-terminal adenosine. Oxidized tRNATrp (but not tRNATrp without the 3'-A) accelerates tryptophan-dependent hydrolysis of ATP catalyzed by the enzyme. A scheme is proposed for the interaction of yeast tRNATrp with beef pancreas tryptophanyl-tRNA synthetase involving the association of tRNA with a positively charged site(s) of the enzyme and the changes in the conformation of enzyme manifesting itself in unfolding of the acidic N-terminal fragment of the polypeptide chain and in the exposure of the adenylate.
Collapse
|
29
|
Scheinker VS, Beresten SF, Mazo AM, Ambartsumyan NS, Rokhlin OV, Favorova OO, Kisselev LL. Immunochemical studies of beef pancreas tryptophanyl-tRNA synthetase and its fragments. Determination of the number of antigenic determinants and a comparison with tryptophanyl- tRNA synthetases from other sources and with reverse transcriptase from avian myeloblastosis virus. Eur J Biochem 1979; 97:529-40. [PMID: 89031 DOI: 10.1111/j.1432-1033.1979.tb13141.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The immunoglobulin G (IgG) fraction of the antiserum from rabbits immunized with homogeneous beef pancreas tryptophanyl-tRNA synthetase inhibits the enzyme activity in the reactions of both tRNATrp aminoacylation and tryptophan activation. Fab fragments of IgG act in a similar way. Common antigenic determinants have been detected in tryptophanyl-tRNA synthetases from beef, pig, chicken and rat livers using pure antibodies against beef pancreas tryptophanyl-tRNA synthetase. This observation indicates the evolutional stability of certain structural features of tryptophanyl-tRNA synthetases. The interaction of antibodies with the fragments of beef tryptophanyl-tRNA synthetase produced by endogenous and tryptic proteolysis of the enzyme has been studied. On third of the antiserum antibodies interacting with the C-terminal fragment of the enzyme (Mr approximately equal to 40000) inhibits its activity whereas the antibodies to the N-terminal fragment (Mr approximately equal to 20000) have no effect on the enzyme activity. The immunochemical identity of the two synthetase fragments differing in their enzymatic activity supports the assumption that the loss of enzymatic activity of the tryptic fragment is caused by lack of a small peptide which is retained in case of endogenous proteolysis; probably the amino acid residues of this peptide participate in formation of active centre of tryptophanyl-tRNA synthetase. A radioimmunochemical method is described for determining the number of antigenic determinants. One molecule of tryptophanyl-tRNA synthetase was found to bind 9 (+/- 1) molecules of Fab fragments. Antibodies against tryptophanyl-tRNA snythetase from beef pancreas do not inhibit noticeably the activity of reverse transcriptase from avian myeloblastosis virus. No antigenic determinants in common have been detected in reverse transcriptase and tryptophanyl-tRNA synthetase by radioimmunochemical assays.
Collapse
|