7zoc

Structural highlights

Function

COLH_HATHI 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 (PubMed:3002446). The full-length protein has collagenase activity, while both the 116 kDa and 98 kDa forms act on gelatin (PubMed:7961400). In vitro digestion of soluble calf skin collagen fibrils requires both ColG and ColH; ColG forms missing the second collagen-binding domain is also synergistic with ColH, although their overall efficiency is decreased (PubMed:18374061, PubMed:22099748). Digestion of collagen requires Ca(2+) and is inhibited by EDTA (PubMed:9452493). The activator domain (residues 119-388) and catalytic subdomain (330-601) open and close around substrate allowing digestion when the protein is closed (PubMed:23703618).^{[1] [2] [3] [4] [5] [6] [7] [8] [9]}

References

1. ↑ McCarthy RC, Spurlin B, Wright MJ, Breite AG, Sturdevant LK, Dwulet CS, Dwulet FE. Development and characterization of a collagen degradation assay to assess purified collagenase used in islet isolation. Transplant Proc. 2008 Mar;40(2):339-42. doi: 10.1016/j.transproceed.2008.01.041. PMID:18374061 doi:http://dx.doi.org/10.1016/j.transproceed.2008.01.041
2. ↑ Eckhard U, Schonauer E, Ducka P, Briza P, Nuss D, Brandstetter H. Biochemical characterization of the catalytic domains of three different Clostridial collagenases. Biol Chem. 2009 Jan;390(1):11-8. doi: 10.1515/BC.2009.004. PMID:18937627 doi:http://dx.doi.org/10.1515/BC.2009.004
3. ↑ Breite AG, McCarthy RC, Dwulet FE. Characterization and functional assessment of Clostridium histolyticum class I (C1) collagenases and the synergistic degradation of native collagen in enzyme mixtures containing class II (C2) collagenase. Transplant Proc. 2011 Nov;43(9):3171-5. doi: 10.1016/j.transproceed.2011.09.059. PMID:22099748 doi:http://dx.doi.org/10.1016/j.transproceed.2011.09.059
4. ↑ Eckhard U, Schonauer E, Brandstetter H. Structural basis for activity regulation and substrate preference of clostridial collagenases G, H, and T. J Biol Chem. 2013 May 23. PMID:23703618 doi:10.1074/jbc.M112.448548
5. ↑ Eckhard U, Huesgen PF, Brandstetter H, Overall CM. Proteomic protease specificity profiling of clostridial collagenases reveals their intrinsic nature as dedicated degraders of collagen. J Proteomics. 2014 Apr 4;100:102-14. doi: 10.1016/j.jprot.2013.10.004. Epub 2013 , Oct 11. PMID:24125730 doi:http://dx.doi.org/10.1016/j.jprot.2013.10.004
6. ↑ Schonauer E, Kany AM, Haupenthal J, Husecken K, Hoppe IJ, Voos K, Yahiaoui S, Elsasser B, Ducho C, Brandstetter H, Hartmann RW. Discovery of a Potent Inhibitor Class with High Selectivity toward Clostridial Collagenases. J Am Chem Soc. 2017 Sep 13;139(36):12696-12703. doi: 10.1021/jacs.7b06935. Epub, 2017 Aug 31. PMID:28820255 doi:http://dx.doi.org/10.1021/jacs.7b06935
7. ↑ Mookhtiar KA, Steinbrink DR, Van Wart HE. Mode of hydrolysis of collagen-like peptides by class I and class II Clostridium histolyticum collagenases: evidence for both endopeptidase and tripeptidylcarboxypeptidase activities. Biochemistry. 1985 Nov 5;24(23):6527-33. doi: 10.1021/bi00344a033. PMID:3002446 doi:http://dx.doi.org/10.1021/bi00344a033
8. ↑ Yoshihara K, Matsushita O, Minami J, Okabe A. Cloning and nucleotide sequence analysis of the colH gene from Clostridium histolyticum encoding a collagenase and a gelatinase. J Bacteriol. 1994 Nov;176(21):6489-96. doi: 10.1128/jb.176.21.6489-6496.1994. PMID:7961400 doi:http://dx.doi.org/10.1128/jb.176.21.6489-6496.1994
9. ↑ Matsushita O, Jung CM, Minami J, Katayama S, Nishi N, Okabe A. A study of the collagen-binding domain of a 116-kDa Clostridium histolyticum collagenase. J Biol Chem. 1998 Feb 6;273(6):3643-8. doi: 10.1074/jbc.273.6.3643. PMID:9452493 doi:http://dx.doi.org/10.1074/jbc.273.6.3643