in contrast , rat urinary kallikrein released 77 % as bradykinin , 22 % as [ hyp3 ] -bradykinin and negligible amounts of [ hyp3 ] -lys-bradykinin from the identical substrate source indicating that rat tissue kallikreins prefer the lys-arg-bond within both unhydroxylated and hydroxylated kininogens .
C0006100
bradykinin
C0022474
lys-bradykinin