5vjg
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 5vjg is ON HOLD Authors: Plapp, B.V., Baskar Raj, S. Description: horse liver alcohol dehydrogenase complexed with 2,2'bipyridine [[Category: Unrel...) |
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- | '''Unreleased structure''' | ||
- | + | ==horse liver alcohol dehydrogenase complexed with 2,2'bipyridine== | |
+ | <StructureSection load='5vjg' size='340' side='right'caption='[[5vjg]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[5vjg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Equus_caballus Equus caballus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VJG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VJG 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]] 1.9Å</td></tr> | ||
+ | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0BP:2,2-BIPYRIDINE'>0BP</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=5vjg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vjg OCA], [https://pdbe.org/5vjg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vjg RCSB], [https://www.ebi.ac.uk/pdbsum/5vjg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vjg ProSAT]</span></td></tr> | ||
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/ADH1E_HORSE ADH1E_HORSE] | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | During catalysis by liver alcohol dehydrogenase (ADH), a water bound to the catalytic zinc is replaced by the oxygen of the substrates. The mechanism might involve a pentacoordinated zinc or a double-displacement reaction with participation by a nearby glutamate residue, as suggested by studies of human ADH3, yeast ADH1, and some other tetrameric ADHs. Zinc coordination and participation of water in the enzyme mechanism were investigated by X-ray crystallography. The apoenzyme and its complex with adenosine 5'-diphosphoribose have an open protein conformation with the catalytic zinc in one position, tetracoordinated by Cys-46, His-67, Cys-174, and a water molecule. The bidentate chelators 2,2'-bipyridine and 1,10-phenanthroline displace the water and form a pentacoordinated zinc. The enzyme-NADH complex has a closed conformation similar to that of ternary complexes with coenzyme and substrate analogues; the coordination of the catalytic zinc is similar to that found in the apoenzyme, except that a minor, alternative position for the catalytic zinc is approximately 1.3 A from the major position and closer to Glu-68, which could form the alternative coordination to the catalytic zinc. Complexes with NADH and N-1-methylhexylformamide or N-benzylformamide (or with NAD+ and fluoro alcohols) have the classical tetracoordinated zinc, and no water is bound to the zinc or the nicotinamide rings. The major forms of the enzyme in the mechanism have a tetracoordinated zinc, where the carboxylate group of Glu-68 could participate in the exchange of water and substrates on the zinc. Hydride transfer in the Michaelis complexes does not involve a nearby water. | ||
- | + | Horse Liver Alcohol Dehydrogenase: Zinc Coordination and Catalysis.,Plapp BV, Savarimuthu BR, Ferraro DJ, Rubach JK, Brown EN, Ramaswamy S Biochemistry. 2017 Jul 18;56(28):3632-3646. doi: 10.1021/acs.biochem.7b00446., Epub 2017 Jul 7. PMID:28640600<ref>PMID:28640600</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | [[Category: | + | </div> |
- | [[Category: Baskar Raj | + | <div class="pdbe-citations 5vjg" style="background-color:#fffaf0;"></div> |
- | [[Category: Plapp | + | |
+ | ==See Also== | ||
+ | *[[Alcohol dehydrogenase 3D structures|Alcohol dehydrogenase 3D structures]] | ||
+ | == References == | ||
+ | <references/> | ||
+ | __TOC__ | ||
+ | </StructureSection> | ||
+ | [[Category: Equus caballus]] | ||
+ | [[Category: Large Structures]] | ||
+ | [[Category: Baskar Raj S]] | ||
+ | [[Category: Plapp BV]] |
Current revision
horse liver alcohol dehydrogenase complexed with 2,2'bipyridine
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