4tkx

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Structure of ProteaseStructure of Protease

Structural highlights

4tkx is a 1 chain structure with sequence from Porphyromonas gingivalis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.6Å
Ligands:, , , , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

KGP83_PORGN Cysteine proteinase with a strong preference for substrates with Lys in the P1 position. Hydrolyzes bovine hemoglobin, bovine serum albumin, casein, human placental type I collagen and human IgA and IgG. Disrupts the functions of polymorphonuclear leukocytes. May act as a virulence factor in the development of peridontal disease. Involved in the coaggregation of P.gingivalis with other oral bacteria (By similarity).[UniProtKB:B2RLK2]

Publication Abstract from PubMed

The oral pathogen Porphyromonas gingivalis is a keystone pathogen in the development of chronic periodontitis. Gingipains, the principle virulence factors of P. gingivalis are multidomain, cell-surface proteins containing a cysteine protease domain. The lysine specific gingipain, Kgp, is a critical virulence factor of P. gingivalis. We have determined the X-ray crystal structure of the lysine-specific protease domain of Kgp to 1.6 A resolution. The structure provides insights into the mechanism of substrate specificity and catalysis.

Structure of the lysine specific protease Kgp from Porphyromonas gingivalis, a target for improved oral health.,Gorman MA, Seers CA, Michell BJ, Feil SC, Huq NL, Cross KJ, Reynolds EC, Parker MW Protein Sci. 2015 Jan;24(1):162-6. doi: 10.1002/pro.2589. Epub 2014 Dec 3. PMID:25327141[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Gorman MA, Seers CA, Michell BJ, Feil SC, Huq NL, Cross KJ, Reynolds EC, Parker MW. Structure of the lysine specific protease Kgp from Porphyromonas gingivalis, a target for improved oral health. Protein Sci. 2015 Jan;24(1):162-6. doi: 10.1002/pro.2589. Epub 2014 Dec 3. PMID:25327141 doi:http://dx.doi.org/10.1002/pro.2589

4tkx, resolution 1.60Å

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OCA