The activation of human proaccelerin (factor V).
D002118:Calcium / Q000097:blood; D005165:Factor V; D005170:Factor X; D006801:Humans; D010743:Phospholipids / Q000097:blood; D014361:Trypsin Inhibitors / Q000494:pharmacology; D014688:Venoms / Q000494:pharmacology
D010743:Phospholipids; D014361:Trypsin Inhibitors; D014688:Venoms; D005165:Factor V; D005170:Factor X; D002118:Calcium