Interaction of Heparin with Annexin V
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Authors
Capila, Ishan
Vandernoot, Victoria A.
Mealy, Tanya R.
Seaton, Barbara A.
Linhardt, Robert J.
Issue Date
1999-03-12
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
The energetics and kinetics of the interaction of heparin with the Ca2+ and phospholipid binding protein annexin V, was examined and the minimum oligosaccharide sequence within heparin that binds annexin V was identified. Affinity chromatography studies confirmed the Ca2+ dependence of this binding interaction. Analysis of the data obtained from surface plasmon resonance afforded a Kd of approximately 21 nM for the interaction of annexin V with end-chain immobilized heparin and a Kd of approximately 49 nM for the interaction with end-chain immobilized heparan sulfate. Isothermal titration calorimetry showed the minimum annexin V binding oligosaccharide sequence within heparin corresponds to an octasaccharide sequence. The Kd of a heparin octasaccharide binding to annexin V was approximately 1 microM with a binding stoichiometry of 1:1.
Description
FEBS Letters, 446, 327-330
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
Interaction of Heparin with Annexin V, I. Capila, V. A. VanderNoot,T. R. Mealy, B. A. Seaton, RJ. Linhardt, FEBS Letters, 446,327-330, 1999.
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Terms of Use
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Volume
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PubMed ID
DOI
ISSN
145793