کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1389755 | 982918 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The O-polysaccharide of Escherichia coli O112ac has the same structure as that of Shigella dysenteriae type 2 but is devoid of O-acetylation: a revision of the S. dysenteriae type 2 O-polysaccharide structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The O-antigen structure of Shigella dysenteriae type 2 was reinvestigated using chemical modifications along with high-resolution 2D 1H and 13C NMR spectroscopy. The O-antigen was found to contain a pyruvic acid acetal, which was overlooked in an early study, and the following revised structure of the pentasaccharide repeating unit was established:Figure optionsDownload as PowerPoint slidewhere ∼70% GlcNAc residues bear an O-acetyl group at position 3. The O-antigen of Escherichia coli O112ac was found to have the same carbohydrate structure but to lack O-acetylation.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 343, Issue 5, 7 April 2008, Pages 977–981
Journal: Carbohydrate Research - Volume 343, Issue 5, 7 April 2008, Pages 977–981
نویسندگان
Andrei V. Perepelov, Andrej Weintraub, Bin Liu, Sof’ya N. Senchenkova, Alexander S. Shashkov, Lu Feng, Lei Wang, Göran Widmalm, Yuriy A. Knirel,