4hpk

Structural highlights

Function

COLG_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). Active on soluble type I collagen, insoluble collagen, azocoll, soluble PZ-peptide (all collagenase substrates) and gelatin (PubMed:9922257). The full-length protein has collagenase activity, while the in vivo derived C-terminally truncated shorter versions only act on gelatin (PubMed:9922257). In vitro digestion of soluble calf skin collagen fibrils requires both ColG and ColH; ColG forms missing the second collagen-binding domain are also synergistic with ColH, although their overall efficiency is decreased (PubMed:18374061, PubMed:22099748). The activator domain (residues 119-388) and catalytic subdomain (389-670) open and close around substrate using a Gly-rich hinge (387-397), allowing digestion when the protein is closed (PubMed:21947205, PubMed:23703618). Binding of collagen requires Ca(2+) and is inhibited by EGTA; the collagen-binding domain (CBD, S3a plus S3b) specifically recognizes the triple-helical conformation made by 3 collagen protein chains in the triple-helical region (PubMed:11121400). Isolated CBD (S3a plus S3b) binds collagen fibrils and sheets of many tissues (PubMed:11913772).^{[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]}

See Also

• Collagenase 3D structures

References

1. ↑ Matsushita O, Koide T, Kobayashi R, Nagata K, Okabe A. Substrate recognition by the collagen-binding domain of Clostridium histolyticum class I collagenase. J Biol Chem. 2001 Mar 23;276(12):8761-70. doi: 10.1074/jbc.M003450200. Epub 2000 , Dec 19. PMID:11121400 doi:http://dx.doi.org/10.1074/jbc.M003450200
2. ↑ Toyoshima T, Matsushita O, Minami J, Nishi N, Okabe A, Itano T. Collagen-binding domain of a Clostridium histolyticum collagenase exhibits a broad substrate spectrum both in vitro and in vivo. Connect Tissue Res. 2001;42(4):281-90. doi: 10.3109/03008200109016842. PMID:11913772 doi:http://dx.doi.org/10.3109/03008200109016842
3. ↑ 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
4. ↑ 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
5. ↑ Eckhard U, Schonauer E, Nuss D, Brandstetter H. Structure of collagenase G reveals a chew-and-digest mechanism of bacterial collagenolysis. Nat Struct Mol Biol. 2011 Sep 25;18(10):1109-14. doi: 10.1038/nsmb.2127. PMID:21947205 doi:10.1038/nsmb.2127
6. ↑ 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
7. ↑ 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
8. ↑ 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
9. ↑ 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
10. ↑ 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
11. ↑ Matsushita O, Jung CM, Katayama S, Minami J, Takahashi Y, Okabe A. Gene duplication and multiplicity of collagenases in Clostridium histolyticum. J Bacteriol. 1999 Feb;181(3):923-33. doi: 10.1128/JB.181.3.923-933.1999. PMID:9922257 doi:http://dx.doi.org/10.1128/JB.181.3.923-933.1999