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| | <StructureSection load='3n7o' size='340' side='right'caption='[[3n7o]], [[Resolution|resolution]] 1.80Å' scene=''> | | <StructureSection load='3n7o' size='340' side='right'caption='[[3n7o]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3n7o]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3N7O OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3N7O FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3n7o]] is a 1 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=3N7O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3N7O FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=N7O:(S)-[(1S)-1-(5-CHLORO-1-BENZOTHIOPHEN-3-YL)-2-{[(E)-2-(3,4-DIFLUOROPHENYL)ETHENYL]AMINO}-2-OXOETHYL]METHYLPHOSPHINIC+ACID'>N7O</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=UNL:UNKNOWN+LIGAND'>UNL</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]] 1.8Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">chymase (16-245), CMA1, CYH, CYM ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=N7O:(S)-[(1S)-1-(5-CHLORO-1-BENZOTHIOPHEN-3-YL)-2-{[(E)-2-(3,4-DIFLUOROPHENYL)ETHENYL]AMINO}-2-OXOETHYL]METHYLPHOSPHINIC+ACID'>N7O</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=UNL:UNKNOWN+LIGAND'>UNL</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Chymase Chymase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.39 3.4.21.39] </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=3n7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3n7o OCA], [https://pdbe.org/3n7o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3n7o RCSB], [https://www.ebi.ac.uk/pdbsum/3n7o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3n7o ProSAT]</span></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=3n7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3n7o OCA], [http://pdbe.org/3n7o PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3n7o RCSB], [http://www.ebi.ac.uk/pdbsum/3n7o PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3n7o ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/CMA1_HUMAN CMA1_HUMAN]] Major secreted protease of mast cells with suspected roles in vasoactive peptide generation, extracellular matrix degradation, and regulation of gland secretion. | + | [https://www.uniprot.org/uniprot/CMA1_HUMAN CMA1_HUMAN] Major secreted protease of mast cells with suspected roles in vasoactive peptide generation, extracellular matrix degradation, and regulation of gland secretion. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Chymase]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Abad, M C]] | + | [[Category: Abad MC]] |
| - | [[Category: Bayoumy, S]] | + | [[Category: Bayoumy S]] |
| - | [[Category: Crysler, C]] | + | [[Category: Crysler C]] |
| - | [[Category: Deckman, I]] | + | [[Category: Deckman I]] |
| - | [[Category: Degaravilla, L]] | + | [[Category: Degaravilla L]] |
| - | [[Category: Greco, M N]] | + | [[Category: Greco MN]] |
| - | [[Category: Kervinen, J]] | + | [[Category: Kervinen J]] |
| - | [[Category: Maryanoff, B E]] | + | [[Category: Maryanoff BE]] |
| - | [[Category: Spurlino, J]] | + | [[Category: Spurlino J]] |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Serine protease]]
| + | |
| Structural highlights
Function
CMA1_HUMAN Major secreted protease of mast cells with suspected roles in vasoactive peptide generation, extracellular matrix degradation, and regulation of gland secretion.
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
Chymases (EC 3.4.21.39) are mast cell serine proteinases that are variably expressed in different species and, in most cases, display either chymotryptic or elastolytic substrate specificity. Given that chymase inhibitors have emerged as potential therapeutic agents for treating various inflammatory, allergic, and cardiovascular disorders, it is important to understand interspecies differences of the enzymes as well as the behavior of inhibitors with them. We have expressed chymases from humans, macaques, dogs, sheep (MCP2 and MCP3), guinea pigs, and hamsters (HAM1 and HAM2) in baculovirus-infected insect cells. The enzymes were purified and characterized with kinetic constants by using chromogenic substrates. We evaluated in vitro the potency of five nonpeptide inhibitors, originally targeted against human chymase. The inhibitors exhibited remarkable cross-species variation of sensitivity, with the greatest potency observed against human and macaque chymases, with K(i) values ranging from approximately 0.4 to 72nM. Compounds were 10-300-fold less potent, and in some instances ineffective, against chymases from the other species. The X-ray structure of one of the potent phosphinate inhibitors, JNJ-18054478, complexed with human chymase was solved at 1.8A resolution to further understand the binding mode. Subtle variations in the residues in the active site that are already known to influence chymase substrate specificity can also strongly affect the compound potency. The results are discussed in the context of selecting a suitable animal model to study compounds ultimately targeted for human chymase.
Potency variation of small-molecule chymase inhibitors across species.,Kervinen J, Crysler C, Bayoumy S, Abad MC, Spurlino J, Deckman I, Greco MN, Maryanoff BE, de Garavilla L Biochem Pharmacol. 2010 Oct 1;80(7):1033-41. Epub 2010 Jun 23. PMID:20599788[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Kervinen J, Crysler C, Bayoumy S, Abad MC, Spurlino J, Deckman I, Greco MN, Maryanoff BE, de Garavilla L. Potency variation of small-molecule chymase inhibitors across species. Biochem Pharmacol. 2010 Oct 1;80(7):1033-41. Epub 2010 Jun 23. PMID:20599788 doi:10.1016/j.bcp.2010.06.014
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