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| | ==Cathepsin-G== | | ==Cathepsin-G== |
| - | <StructureSection load='1kyn' size='340' side='right' caption='[[1kyn]], [[Resolution|resolution]] 3.50Å' scene=''> | + | <StructureSection load='1kyn' size='340' side='right'caption='[[1kyn]], [[Resolution|resolution]] 3.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1kyn]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KYN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1KYN FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1kyn]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KYN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KYN FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=KTP:(2-NAPHTHALEN-2-YL-1-NAPHTHALEN-1-YL-2-OXO-ETHYL)-PHOSPHONIC+ACID'>KTP</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.5Å</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cathepsin_G Cathepsin G], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.20 3.4.21.20] </span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=KTP:(2-NAPHTHALEN-2-YL-1-NAPHTHALEN-1-YL-2-OXO-ETHYL)-PHOSPHONIC+ACID'>KTP</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1kyn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kyn OCA], [http://pdbe.org/1kyn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1kyn RCSB], [http://www.ebi.ac.uk/pdbsum/1kyn PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1kyn ProSAT]</span></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=1kyn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kyn OCA], [https://pdbe.org/1kyn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kyn RCSB], [https://www.ebi.ac.uk/pdbsum/1kyn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kyn ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/CATG_HUMAN CATG_HUMAN]] Serine protease with trypsin- and chymotrypsin-like specificity. Cleaves complement C3. Has antibacterial activity against the Gram-negative bacterium P.aeruginosa, antibacterial activity is inhibited by LPS from P.aeruginosa, Z-Gly-Leu-Phe-CH2Cl and phenylmethylsulfonyl fluoride.<ref>PMID:8194606</ref> <ref>PMID:1861080</ref> <ref>PMID:1937776</ref> | + | [https://www.uniprot.org/uniprot/CATG_HUMAN CATG_HUMAN] Serine protease with trypsin- and chymotrypsin-like specificity. Cleaves complement C3. Has antibacterial activity against the Gram-negative bacterium P.aeruginosa, antibacterial activity is inhibited by LPS from P.aeruginosa, Z-Gly-Leu-Phe-CH2Cl and phenylmethylsulfonyl fluoride.<ref>PMID:8194606</ref> <ref>PMID:1861080</ref> <ref>PMID:1937776</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | <jmolCheckbox> | | <jmolCheckbox> |
| | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ky/1kyn_consurf.spt"</scriptWhenChecked> | | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ky/1kyn_consurf.spt"</scriptWhenChecked> |
| - | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> |
| | <text>to colour the structure by Evolutionary Conservation</text> | | <text>to colour the structure by Evolutionary Conservation</text> |
| | </jmolCheckbox> | | </jmolCheckbox> |
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| | </div> | | </div> |
| | <div class="pdbe-citations 1kyn" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 1kyn" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Cathepsin 3D structures|Cathepsin 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Cathepsin G]] | |
| | [[Category: Homo sapiens]] | | [[Category: Homo sapiens]] |
| - | [[Category: Almond, H R]] | + | [[Category: Large Structures]] |
| - | [[Category: Andrade-Gordon, P]] | + | [[Category: Almond Jr HR]] |
| - | [[Category: Chattopadhyay, D]] | + | [[Category: Andrade-Gordon P]] |
| - | [[Category: Corcoran, T W]] | + | [[Category: Chattopadhyay D]] |
| - | [[Category: Garavilla, L De]] | + | [[Category: Corcoran TW]] |
| - | [[Category: Greco, M N]] | + | [[Category: De Garavilla L]] |
| - | [[Category: Hawkins, M J]] | + | [[Category: Greco MN]] |
| - | [[Category: Kauffman, J A]] | + | [[Category: Hawkins MJ]] |
| - | [[Category: Maryanoff, B E]] | + | [[Category: Kauffman JA]] |
| - | [[Category: Powell, E T]] | + | [[Category: Maryanoff BE]] |
| - | [[Category: Recacha, R]] | + | [[Category: Powell ET]] |
| - | [[Category: Hydrolase]]
| + | [[Category: Recacha R]] |
| - | [[Category: Serine protease]]
| + | |
| Structural highlights
Function
CATG_HUMAN Serine protease with trypsin- and chymotrypsin-like specificity. Cleaves complement C3. Has antibacterial activity against the Gram-negative bacterium P.aeruginosa, antibacterial activity is inhibited by LPS from P.aeruginosa, Z-Gly-Leu-Phe-CH2Cl and phenylmethylsulfonyl fluoride.[1] [2] [3]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The serine protease cathepsin G (EC 3.4.21.20; Cat G), which is stored in the azurophilic granules of neutrophils (polymorphonuclear leukocytes) and released on degranulation, has been implicated in various pathological conditions associated with inflammation. By employing high-throughput screening, we identified beta-ketophosphonic acid 1 as a moderate inhibitor of Cat G (IC(50) = 4.1 microM). We were fortunate to obtain a cocrystal of 1 with Cat G and solve its structure by X-ray crystallography (3.5 A). Structural details from the X-ray analysis of 1.Cat G served as a platform for optimization of this lead compound by structure-based drug design. With the aid of molecular modeling, substituents were attached to the 3-position of the 2-naphthyl ring of 1, which occupies the S1 pocket of Cat G, to provide an extension into the hydrophobic S3 region. Thus, we arrived at analogue 7 with an 80-fold potency improvement over 1 (IC(50) = 53 nM). From these results, it is evident that the beta-ketophosphonic acid unit can form the basis for a novel class of serine protease inhibitors.
Nonpeptide inhibitors of cathepsin G: optimization of a novel beta-ketophosphonic acid lead by structure-based drug design.,Greco MN, Hawkins MJ, Powell ET, Almond HR Jr, Corcoran TW, de Garavilla L, Kauffman JA, Recacha R, Chattopadhyay D, Andrade-Gordon P, Maryanoff BE J Am Chem Soc. 2002 Apr 17;124(15):3810-1. PMID:11942800[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Avril LE, Di Martino-Ferrer M, Pignede G, Seman M, Gauthier F. Identification of the U-937 membrane-associated proteinase interacting with the V3 loop of HIV-1 gp120 as cathepsin G. FEBS Lett. 1994 May 23;345(1):81-6. PMID:8194606
- ↑ Maison CM, Villiers CL, Colomb MG. Proteolysis of C3 on U937 cell plasma membranes. Purification of cathepsin G. J Immunol. 1991 Aug 1;147(3):921-6. PMID:1861080
- ↑ Wasiluk KR, Skubitz KM, Gray BH. Comparison of granule proteins from human polymorphonuclear leukocytes which are bactericidal toward Pseudomonas aeruginosa. Infect Immun. 1991 Nov;59(11):4193-200. PMID:1937776
- ↑ Greco MN, Hawkins MJ, Powell ET, Almond HR Jr, Corcoran TW, de Garavilla L, Kauffman JA, Recacha R, Chattopadhyay D, Andrade-Gordon P, Maryanoff BE. Nonpeptide inhibitors of cathepsin G: optimization of a novel beta-ketophosphonic acid lead by structure-based drug design. J Am Chem Soc. 2002 Apr 17;124(15):3810-1. PMID:11942800
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