Collagenase ColT - Q899Y1 (COLT_CLOTE)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q899Y1: 2
Clostridial collagenases are among the most efficient degraders of eukaryotic collagen known; saprophytes use collagen as a carbon source while pathogens additionally digest collagen to aid in host colonization. Has both tripeptidylcarboxypeptidase on Gly-X-Y and endopeptidase activities; the endopeptidase cuts within the triple helix region of collagen while tripeptidylcarboxypeptidase successively digests the exposed ends, thus clostridial collagenases can digest large sections of collagen (By similarity). The activator domain (residues 57-330) and catalytic subdomain (340-611) open and close around substrate allowing digestion when the protein is closed (PubMed:23703618). UniProt
Catalytic Activity
Digestion of native collagen in the triple helical region at Xaa-|-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'. UniProt
Pathway Maps
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The mature protein has 3 domains; a metalloprotease domain (S1, approximately residues 53 to 727) and 2 collagen-binding domains (CBD) (755-872) and (882-991) (PubMed:18937627). The metalloprotease S1 domain is composed of 3 subdomains which together resemble a saddle; an activator domain (residues 57-330), the catalytic peptidase subdomain (340-611) and a helper subdomain (619-731) (PubMed:23703618). UniProt
  • Other Gene names: colT, CTC_p33
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