کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10606617 | 983083 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel teichulosonic acid from cell walls of some representatives of the genus Kribbella
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Cell walls of each of five bacterial strains belonging to the genus Kribbella (family Nocardioidaceae, order Actinomycetales) contain a neutral polysaccharide (mannan) and teichulosonic acid of novel structure in different proportions. The novel teichulosonic acid found in strains VKM Ac-2500, VKM ÐÑ-2568, VKM ÐÑ-2572, and VKM ÐÑ-2575 is a heteropolymer with an irregular structure where fragments I (predominant) alternate with fragments II (minor):The teichulosonic acid from Kribbella sp. VKM Ac-2527 has in general a structure similar to that above with the exception that the Pse residue is randomly glycosylated at O-4 with β-l-Rhap (along with α-d-Galp3OMe or α-d-Galp2,3OMe). The strain VKM Ac-2572 contained additionally teichuronic acid with the disaccharide repeating unit consisted of aminomannuronic acid and 2,3-diacetamido-2,3-dideoxy-α-glucopyranose. The mannan, a polysaccharide common to all of the strains, is built of (1â6)-linked α-d-mannopyranose substituted with α-d-mannopyranose at O-2. The structures of all the glycopolymers were established by a combination of chemical and NMR spectroscopic methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 346, Issue 13, 27 September 2011, Pages 2045-2051
Journal: Carbohydrate Research - Volume 346, Issue 13, 27 September 2011, Pages 2045-2051
نویسندگان
Elena M. Tul'skaya, Galina M. Streshinskaya, Alexander S. Shashkov, Sof'ya N. Senchenkova, Alexander N. Avtukh, Lidiya M. Baryshnikova, Lyudmila I. Evtushenko,