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Teichoic, teichulosonic and teichuronic acids in thе cell wall of Brevibacterium aurantiacum VKM Ac-2111Тстатья
Дата последнего поиска статьи во внешних источниках: 6 апреля 2016 г.
- Авторы: Shashkov Alexander S., Potekhina Natalia V., Senchenkova Sofya N., Evtushenko Lyudmila I.
- Журнал: Carbohydrate Research
- Том: 421
- Год издания: 2016
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 17
- Последняя страница: 24
- Аннотация: Two different teichoic acids, along with a teichulosonic and a teichuronic acids, were identifined in thе cell wall of Brevibacterium aurantiacum VKM Ac-2111Т. One teichoic acid is 1,3-poly(glycerol phosphate) with 2-acetamido-2-deoxy-α-D-galactopyranose and L-glutamic acid as non-stoichiometric substituents at O-2 of the glycerol residue. The second one is a poly(glycosylglycerol phosphate) with -4)-α-D-Galp-(1→2)-sn-Gro-(3-P- and/or -6)-α-D-Galp-(1→2)-sn-Gro-(3-P- units in the main chain. The structure of the first has not been reported so far, while the latter one is new for actinobacteria. The teichulosonic acid with α-3-deoxy--D-glycero-D-galacto-non-2-ulopyranosonic acid (Kdn) and β-D-glucopyranose residues in the backbone represents a novel polymer: →8)-α-Kdn-(2→6)-β-D-Glcp-(1→. The teichuronic acid has also hitherto unknown structure: 3)--D-Galf(2OAc)0.3-(13)--D-GlcpА-(1 and is found in members of the genus Brevibacterium for the first time. The polymer structures were elucidated using 1D- and 2D-NMR spectroscopy: 1H,1H COSY, TOCSY, ROESY, 1H,13C HSQC, HSQC-TOCSY, and 1H,13C and 1H,31P HMBC.
- Добавил в систему: Потехина Наталья Викторовна