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. 1971 Jul;50(7):1506–1513. doi: 10.1172/JCI106636

The effect of fibrin-stabilizing factor on the subunit structure of human fibrin

Martin L Schwartz 1,2, Salvatore V Pizzo 1,2, Robert L Hill 1,2, Patrick A McKee 1,2
PMCID: PMC292091  PMID: 5090065

Abstract

The formation of human fibrin from fibrinogen has been examined by polyacrylamide gel electrophoresis in sodium dodecyl sulfate, a method which separates a mixture of proteins on the basis of differences in molecular weight. It has been found that the plasma from a patient with a congenital deficiency of fibrin-stabilizing factor forms clots lacking the cross links among the α- and γchains found in normal, cross-linked human fibrin. The addition of purified fibrin-stabilizing factor or normal plasma to the deficient plasma results in extensive cross-linking of the chains. Thus, the fibrinogen in the fibrin-stabilizing factor deficient plasma appears to be normal and forms fibrin which contains dimeric, cross-linked γ-chains and polymeric, high molecular weight forms of α-chains. By the use of these electrophoretic methods, it has also been possible to develop a highly sensitive method for measuring the content of fibrin-stabilizing factor in plasma. This method depends upon the use of urea-treated fibrinogen, which is completely devoid of fibrin-stabilizing factor, but which forms the usual cross-linked subunits after conversion to fibrin by thrombin in the presence of fibrin-stabilizing factor.

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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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