This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
4tkx
From Proteopedia
(Difference between revisions)
| (5 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==Structure of Protease== | |
| + | <StructureSection load='4tkx' size='340' side='right'caption='[[4tkx]], [[Resolution|resolution]] 1.60Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4tkx]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Porphyromonas_gingivalis Porphyromonas gingivalis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4TKX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4TKX FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PB:LEAD+(II)+ION'>PB</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TCK:N-[(1S)-5-AMINO-1-(CHLOROACETYL)PENTYL]-4-METHYLBENZENESULFONAMIDE'>TCK</scene></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4tkx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4tkx OCA], [https://pdbe.org/4tkx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4tkx RCSB], [https://www.ebi.ac.uk/pdbsum/4tkx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4tkx ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/KGP83_PORGN 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] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == 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<ref>PMID:25327141</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 4tkx" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[Proteinase 3D structures|Proteinase 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Porphyromonas gingivalis]] | ||
| + | [[Category: Gorman MA]] | ||
| + | [[Category: Parker MW]] | ||
Current revision
Structure of Protease
| |||||||||||
