title: [Studies in the fibrinogen molecule D fragment inactivation protecting fragment].
abstract: The interaction was studied between two fragments of bovine fibrinogen isolated from its tryptic hydrolysate: the D fragment, an inhibitor of fibrin-monomer polymerization, and the protector, a fragment inactivating the D fragment. This reaction is relatively rapid: it is completed for several minutes at room temperature and at 37 degrees and is slowed down at 5 degrees. However, the reached level of the D fragment inactivation does not depend upon temperature (within a range from 5 degrees to 37 degrees). Dilution of the incubation mixture under applied conditions caused no dissociation of the D fragment-protector complex. Inactivation of the D fragment by the protector depends on the solution ionic strength; ionic strength 0.13-0.16 is optimal.
mesh_terms: D000818:Animals; D001777:Blood Coagulation; D002417:Cattle; D005337:Fibrin; D005340:Fibrinogen; D007700:Kinetics; D009994:Osmolar Concentration; D010446:Peptide Fragments / Q000032:analysis; D013696:Temperature; D014357:Trypsin
chemical_list: D010446:Peptide Fragments; D005337:Fibrin; D005340:Fibrinogen; D014357:Trypsin
vernacular_title: Doslidzhennia reaktsiĭ inaktivatsiĭ fragmenta D mlekuli fibrinogenu fragmentom-protektorom.