REACTIVITY OF FIBRINOGEN DERIVATIVES WITH ANTISERA TO HUMAN FIBRIN D-DIMER AND ITS GAMMA-GAMMA-CHAIN REMNANT

  • 1 January 1982
    • journal article
    • research article
    • Vol. 48  (1) , 33-37
Abstract
Highly purified D-dimer was obtained from plasmin digest of human cross-linked fibrin. After reduction of its disulfide bonds, the .gamma.-.gamma. chain remnant, containing cross-linking site, was then isolated by ion-exchange chromatography on CM-cellulose. Antisera obtained by immunizing rabbits with D-dimer and its .gamma.-.gamma. chain remnant contained a small population of antibodies which specifically reacted with D-dimer. A specific radioimmunoassay system allowing detection and quantitation of D-dimer in the presence of fibrinogen and monomeric fragment D was made possible.