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23 results on '"Shcherbakova, Victoria"'

10. Methanogens in the Antarctic Dry Valley permafrost

Author

Vishnivetskaya, Tatiana A, primary, Buongiorno, Joy, additional, Bird, Jordan, additional, Krivushin, Kirill, additional, Spirina, Elena V, additional, Oshurkova, Victoria, additional, Shcherbakova, Victoria A, additional, Wilson, Gary, additional, Lloyd, Karen G, additional, and Rivkina, Elizaveta M, additional

Published
2018
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18. シベリア永久凍土におけるメタン生成菌の群集解析

Author

Victoria, Shcherbakova, Taguchi, Yukihiro, Tkahiro, Segawa, Suzuki, Haruka, Shcherbakova, Victoria, and Yoshimura, Yoshitaka

Abstract

第2回極域科学シンポジウム/第33回極域生物シンポジウム 11月18日（金） 統計数理研究所 3階リフレッシュフロア

Published
2011

20. Structure of the O-Specific Polysaccharide from the Lipopolysaccharide of Psychrobacter cryohalolentis K5T Containing a 2,3,4-Triacetamido-2,3,4-trideoxy-l-arabinose Moiety

Author

Kondakova, Anna N., primary, Novototskaya-Vlasova, Kseniya A., additional, Arbatsky, Nikolay P., additional, Drutskaya, Marina S., additional, Shcherbakova, Victoria A., additional, Shashkov, Alexander S., additional, Gilichinsky, David A., additional, Nedospasov, Sergei A., additional, and Knirel, Yuriy A., additional

Published
2012
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22. Structure of the O-Specific Polysaccharide from the Lipopolysaccharide of Psychrobacter cryohalolentisK5TContaining a 2,3,4-Triacetamido-2,3,4-trideoxy-l-arabinose Moiety

Author

Kondakova, Anna N., Novototskaya-Vlasova, Kseniya A., Arbatsky, Nikolay P., Drutskaya, Marina S., Shcherbakova, Victoria A., Shashkov, Alexander S., Gilichinsky, David A., Nedospasov, Sergei A., and Knirel, Yuriy A.

Abstract

A novel constituent of bacterial polysaccharides, 2,3,4-triacetamido-2,3,4-trideoxy-l-arabinose, was found in the O-specific polysaccharide from the lipopolysaccharide of Psychrobacter cryohalolentisK5Tand identified by 1D and 2D 1H and 13C NMR studies of the polysaccharide and a disaccharide obtained by solvolysis of the polysaccharide with triflic acid. The following structure of the branched polysaccharide was established by sugar analysis, triflic acid solvolysis, Smith degradation, and 2D NMR spectroscopy.

Published
2012
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23. Structure of the O-polysaccharide chain of the lipopolysaccharide of Psychrobacter muricolla 2pST isolated from overcooled water brines within permafrost

Author

Kondakova, Anna N., Novototskaya-Vlasova, Kseniya A., Drutskaya, Marina S., Senchenkova, Sof’ya N., Shcherbakova, Victoria A., Shashkov, Alexander S., Gilichinsky, David A., Nedospasov, Sergei A., and Knirel, Yuriy A.

Subjects
*MICROBIAL polysaccharides, *ENDOTOXINS, *PROTEOBACTERIA, *PERMAFROST, *MOLECULAR structure, *WATER, *PSYCHROTROPHIC organisms, *GLYCINE
Abstract

Abstract: Psychrotrophic bacteria of the genus Psychrobacter have not been studied in respect to lipopolysaccharide structure. In this work, we determined the structure of the O-specific polysaccharide of the lipopolysaccharide of Psychrobacter muricolla 2pST isolated from overcooled (−9°C) water brines within permafrost. The polysaccharide was found to be acidic due to the presence of an amide of 2-acetamido-2-deoxy-l-guluronic acid with glycine (l-GulNAcA6Gly), which has not been hitherto found in nature. The following structure of the disaccharide repeating unit of the polysaccharide was established using composition analysis along with 1D and 2D 1H and 13C NMR spectroscopy: →4)-α-l-GulpNAcA6Gly-(1→3)-β-d-GlcpNAc-(1→ [Copyright &y& Elsevier]

Published
2012
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