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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1987-10-9
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pubmed:abstractText |
A series of 20 C-terminal fragment analogues of the anticoagulant peptide hirudin were synthesized by solid-phase techniques in order to investigate the nature of the thrombin-hirudin interaction. Inhibition of plasma fibrin clot formation by thrombin in vitro was used as a measure of anticoagulant activity. In the minimum region necessary for detectable anticoagulant activity, hirudin56-64, positions Phe56, Glu57, Ile59, Pro60, and Leu64 are sensitive to modification. These residues are apparently important for direct interaction with thrombin or for maintaining a favorable conformation for the interaction. On the basis of conformational analysis of this region by computational methods, a "kinked" amphipathic alpha-helical structure, which orients all of the residues most critical for activity on one face of the helix, is proposed.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0022-2623
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
30
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1688-91
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:3625715-Amino Acid Sequence,
pubmed-meshheading:3625715-Amino Acids,
pubmed-meshheading:3625715-Animals,
pubmed-meshheading:3625715-Binding Sites,
pubmed-meshheading:3625715-Cattle,
pubmed-meshheading:3625715-Hirudins,
pubmed-meshheading:3625715-Protein Conformation,
pubmed-meshheading:3625715-Thrombin
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pubmed:year |
1987
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pubmed:articleTitle |
Anticoagulant peptides: nature of the interaction of the C-terminal region of hirudin with a noncatalytic binding site on thrombin.
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pubmed:publicationType |
Journal Article
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