کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10533322 961866 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A glucanase-driven fractionation allows redefinition of Schizosaccharomyces pombe cell wall composition and structure: assignment of diglucan
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A glucanase-driven fractionation allows redefinition of Schizosaccharomyces pombe cell wall composition and structure: assignment of diglucan
چکیده انگلیسی
Purified endoglucanases have been used to determine the composition of Schizosaccharomyces pombe cell wall. This structure has been traditionally studied after isolating its components (mannoproteins, α1,3-glucan, β1,3-glucan, and a branched β-glucan) with hot alkali. Instead, we sequentially removed the polysaccharides by digesting with endo-β1,3-glucanase and with a novel endo-α1,3-glucanase (mutanase). After this gentle isolation we observed that a branched β1,3-β1,6-glucan is much more abundant than previously described. By scaling-up the new protocol we prepared large amounts of the highly branched glucan and determined its structural features. We have named this highly branched β-glucan diglucan, reflecting its two types of β linkages. We have also identified an insoluble endoglucanase-resistant type of 1,3-linked glucan present in S. pombe cell walls. We redefined the wall composition of S. pombe vegetative cells by this new method. Finally, to demonstrate its application, we determined the cell wall composition of known mutant strains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytical Biochemistry - Volume 336, Issue 2, 15 January 2005, Pages 202-212
نویسندگان
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