EC Explorer

3.4.24.3

microbial collagenase

Digestion of native collagen in the triple helical region at ┼Gly bonds. With synthetic peptides, a preference is shown for Gly at P3 and P1′, Pro and Ala at P2 and P2′, and hydroxyproline, Ala or Arg at P3′

Clostridium histolyticum collagenase, clostridiopeptidase A, collagenase A, collagenase I, Achromobacter iophagus collagenase, collagenase, aspergillopeptidase C, nucleolysin, azocollase, metallocollagenase, soycollagestin, Clostridium histolyticum proteinase A, clostridiopeptidase II, MMP-8, clostridiopeptidase I, collagen peptidase, collagen protease, collagenase MMP-1, metalloproteinase-1, kollaza, matrix metalloproteinase-1, MMP-1, matrix metalloproteinase-8, matirx metalloproteinase-18, interstitial collagenase

9001-12-1

Six species of metalloendopeptidase acting on native collagen can be isolated from the medium of Clostridium histolyticum. Class I has forms α (68 kDa), β (115 kDa) and γ (79 kDa); class II has δ (100 kDa), ε (110 kDa) and ζ (125 kDa). The two classes are immunologically crossreactive, but have significantly different sequences, and different specificities such that their actions on collagen are complementary. The enzymes also act as peptidyl-tripeptidases. Variants of the enzyme have been purified from Bacillus cereus [10], Empedobacter collagenolyticum [4], Pseudomonas marinoglutinosa [1], and species of Vibrio, Vibrio B-30 (ATCC 21250) [2] and V. alginolyticus (previously Achromobacter iophagus) [3,8]. Also known from Streptomyces sp. [9]. The Vibrio enzyme is the type example of peptidase family M9.

created 1961 as EC 3.4.4.19, transferred 1972 to EC 3.4.24.3 (EC 3.4.24.8 created 1978, incorporated 1992, EC 3.4.99.5 created 1972, incorporated 1978)