in addition , comparison of the biochemical properties of the precursor and active forms of human gingival fibroblast collagenase with the precursor and active forms of human skin fibroblast collagenase , previously characterized by stricklin and co-workers ( biochemistry 17 : 2331-2337 , 1978 ) , revealed that they were similar in mr , amino acid composition , and substrate specificity .
C0127082
fibroblast collagenase
C0162745
collagenase