期刊
BIOPOLYMERS
卷 93, 期 3, 页码 290-298出版社
WILEY
DOI: 10.1002/bip.21339
关键词
peptides; heparin; fluorescence; circular dichroism
资金
- Natural Sciences and Engineering Research Council of Canada
Many studies have examined consensus sequences required for protein-glycosaminoglycan interactions. Through the synthesis of helical heparin binding peptides, this study probes the relationship between spatial arrangement of positive charge and heparin binding affinity. Peptides with a linear distribution of positive charge along one face of the alpha-helix had the highest affinity for heparin. Moving the basic residues away from a single face resulted in drastic changes in heparin binding affinity of up to three orders of magnitude. These findings demonstrate that amino acid sequences, different from the known heparin binding consensus sequences, will form high affinity protein-heparin binding interactions when the charged residues are aligned linearly (C) 2009 Wiley Periodicals, Inc. Biopolymers 93: 290-298, 2010.
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