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Báo cáo khoa học: Saccharomyces cerevisiae Ybr004c and its human homologue are required for addition of the second mannose during glycosylphosphatidylinositol precursor assembly

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:9

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Addition of the second mannose is the only obvious step in glycosylphos-phatidylinositol (GPI) precursor assembly for which a responsible gene has not been discovered. A bioinformatics-based strategy identified the essential Saccharomyces cerevisiaeYbr004c protein as a candidate for the second GPIa-mannosyltransferase (GPI-MT-II). S. cerevisiae cells depleted of Ybr004cp have weakened cell walls and abnormal morphology, are unable to incorporate [ 3 H]inositol into proteins, and accumulate a GPI intermedi-ate having a single mannose that is likely modified with ethanolamine phosphate. ...

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Nội dung Text: Báo cáo khoa học: Saccharomyces cerevisiae Ybr004c and its human homologue are required for addition of the second mannose during glycosylphosphatidylinositol precursor assembly

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