title: Purification and activation of human factor X: cooperative effect of Ca++ on the activation reaction.
mesh_terms: D000818:Animals; D001777:Blood Coagulation / Q000187:drug effects; D002118:Calcium / Q000494:pharmacology*; D005170:Factor X / Q000302:isolation & purification*; D006801:Humans; D012910:Snake Venoms
chemical_list: D012910:Snake Venoms; D005170:Factor X; D002118:Calcium