title: Origin of the high molecular weight activator of prekallikrein.
mesh_terms: D000510:Alpha-Globulins / Q000302:isolation & purification*; D000818:Animals; D001778:Blood Coagulation Disorders / Q000097:blood*; D004589:Electrophoresis, Disc; D004789:Enzyme Activation; D004792:Enzyme Precursors; D005174:Factor XII / Q000032:analysis* / Q000378:metabolism; D005246:Feedback; D005341:Fibrinolysin / Q000494:pharmacology; D006041:Goats / Q000276:immunology; D006801:Humans; D005779:Immunodiffusion; D007610:Kallikreins / Q000494:pharmacology*; D008970:Molecular Weight; D010179:Pancreas / Q000201:enzymology; D013917:Thrombin / Q000494:pharmacology; D014357:Trypsin / Q000494:pharmacology
chemical_list: D000510:Alpha-Globulins; D004792:Enzyme Precursors; D005174:Factor XII; D007610:Kallikreins; D014357:Trypsin; D013917:Thrombin; D005341:Fibrinolysin