کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1940791 1050788 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enzymatic synthesis of heparin related polysaccharides on sensor chips: Rapid screening of heparin–protein interactions
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Enzymatic synthesis of heparin related polysaccharides on sensor chips: Rapid screening of heparin–protein interactions
چکیده انگلیسی

The biological roles of heparin (HP) and heparan sulfate (HS) are mediated mainly through their interaction with proteins. In the present work, we provide a rapid method for screening HP/HS–protein interactions providing structural data on the key sulfo groups that participate in the binding. A library of polysaccharides structurally related to HP was prepared by immobilizing the biotinylated N-sulfated K5 polysaccharide (N-sulfoheparosan) on sensor chips followed by selective modification of this polysaccharide with enzymes that participate in HP/HS biosynthesis. The polysaccharides synthesized on the surface of the sensor chips differ in the number and position of sulfo groups present both on uronic acid and glucosamine residues. Surface plasmon resonance was used to measure the interaction of each member of this polysaccharide library with antithrombin III (ATIII), to afford structural information on sulfo groups required for this HP/HS–protein interaction. This method is viewed as widely applicable for the study of the structure–activity relationship (SAR) of HP/HS–protein interactions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 339, Issue 2, 13 January 2006, Pages 597–602
نویسندگان
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