Abstract
Fibrin, but not fibrinogen, accelerates the activation of plasminogen catalyzed by tissue-type plaminogen activator. Previous work showed that essential information for this accelerating capacity of fibrin resides in the sequence corresponding to residues 148-160 of the A alpha chain of fibrinogen [A alpha-(148-160)]. Our working hypothesis, based on those findings, is that A alpha-(148-160) is buried in fibrinogen and becomes accessible to proteins such as plasminogen and/or tissue-type plasminogen activator when fibrinogen is converted to fibrin. To test this hypothesis we have raised a monoclonal antibody against synthetic A alpha-(148-160) and found that this antibody reacts with fibrin and not with fibrinogen. This finding shows that A alpha-(148-160) becomes accessible when fibrinogen is converted to fibrin and that A alpha-(148-160) is a fibrin-specific neoantigenic determinant.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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