2c57: Difference between revisions
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== | ==H.pylori type II dehydroquinase in complex with FA1== | ||
The crystal structures of the type II dehydroquinase (DHQase) from | <StructureSection load='2c57' size='340' side='right'caption='[[2c57]], [[Resolution|resolution]] 3.10Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2c57]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Helicobacter_pylori Helicobacter pylori]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C57 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2C57 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]] 3.1Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FA1:2,3+-ANHYDRO-QUINIC+ACID'>FA1</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=2c57 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c57 OCA], [https://pdbe.org/2c57 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2c57 RCSB], [https://www.ebi.ac.uk/pdbsum/2c57 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2c57 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/AROQ_HELPY AROQ_HELPY] Catalyzes a trans-dehydration via an enolate intermediate (By similarity).[HAMAP-Rule:MF_00169] | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c5/2c57_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2c57 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The crystal structures of the type II dehydroquinase (DHQase) from Helicobacter pylori in complex with three competitive inhibitors have been determined. The inhibitors are the substrate analogue 2,3-anhydroquinate (FA1), citrate, and an oxoxanthene sulfonamide derivative (AH9095). Despite the very different chemical nature of the inhibitors, in each case the primary point of interaction with the enzyme is via the residues that bind the C1 functionalities of the substrate, 3-dehydroquinate, i.e., N76, H102, I103, and H104. The DHQase/AH9095 complex crystal structure shows that sulfonamides can form a scaffold for nonsubstrate-like inhibitors and identifies a large conserved hydrophobic patch at the entrance to the active site as a locus that can be exploited in the development of new ligands. | |||
Crystal structures of Helicobacter pylori type II dehydroquinase inhibitor complexes: new directions for inhibitor design.,Robinson DA, Stewart KA, Price NC, Chalk PA, Coggins JR, Lapthorn AJ J Med Chem. 2006 Feb 23;49(4):1282-90. PMID:16480265<ref>PMID:16480265</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
[[ | <div class="pdbe-citations 2c57" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Dehydroquinase 3D structures|Dehydroquinase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Helicobacter pylori]] | [[Category: Helicobacter pylori]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Lapthorn | [[Category: Lapthorn AJ]] | ||
[[Category: Robinson | [[Category: Robinson DA]] | ||
Latest revision as of 17:06, 13 December 2023
H.pylori type II dehydroquinase in complex with FA1H.pylori type II dehydroquinase in complex with FA1
Structural highlights
FunctionAROQ_HELPY Catalyzes a trans-dehydration via an enolate intermediate (By similarity).[HAMAP-Rule:MF_00169] 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 PubMedThe crystal structures of the type II dehydroquinase (DHQase) from Helicobacter pylori in complex with three competitive inhibitors have been determined. The inhibitors are the substrate analogue 2,3-anhydroquinate (FA1), citrate, and an oxoxanthene sulfonamide derivative (AH9095). Despite the very different chemical nature of the inhibitors, in each case the primary point of interaction with the enzyme is via the residues that bind the C1 functionalities of the substrate, 3-dehydroquinate, i.e., N76, H102, I103, and H104. The DHQase/AH9095 complex crystal structure shows that sulfonamides can form a scaffold for nonsubstrate-like inhibitors and identifies a large conserved hydrophobic patch at the entrance to the active site as a locus that can be exploited in the development of new ligands. Crystal structures of Helicobacter pylori type II dehydroquinase inhibitor complexes: new directions for inhibitor design.,Robinson DA, Stewart KA, Price NC, Chalk PA, Coggins JR, Lapthorn AJ J Med Chem. 2006 Feb 23;49(4):1282-90. PMID:16480265[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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