plasma kallikrein activated spontaneously during the purification of prekallikrein ( i ) and acetone-activated plasma kallikrein ( ii ) were at ph 7.4 both capable of reducing the capacity of purified human high molecular weight kininogen ( hmrk ) to function as cofactor in the contact phase activation of factor xii in a crude plasma preparation .
C0313532
plasma kallikrein
C0086418
human