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1hdy

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(New page: 200px<br /> <applet load="1hdy" size="450" color="white" frame="true" align="right" spinBox="true" caption="1hdy, resolution 2.5&Aring;" /> '''THREE-DIMENSIONAL ST...)
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[[Image:1hdy.gif|left|200px]]<br />
 
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<applet load="1hdy" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1hdy, resolution 2.5&Aring;" />
 
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'''THREE-DIMENSIONAL STRUCTURES OF THREE HUMAN ALCOHOL DEHYDROGENASE VARIANTS: CORRELATIONS WITH THEIR FUNCTIONAL DIFFERENCES'''<br />
 
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==Overview==
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==THREE-DIMENSIONAL STRUCTURES OF THREE HUMAN ALCOHOL DEHYDROGENASE VARIANTS: CORRELATIONS WITH THEIR FUNCTIONAL DIFFERENCES==
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The three-dimensional structures of three variants of human beta alcohol, dehydrogenase have been determined to 2.5 A resolution. These three, structures differ only in the amino acid at position 47 and the molecules, occupying the alcohol binding site. Human beta 1 alcohol dehydrogenase has, an Arg at position 47 and was crystallized in a complex with NAD(H) and, cyclohexanol. A naturally occurring variant of beta 1 alcohol, dehydrogenase, found in approximately 50% of the Asian population, possesses a His at position 47 (beta 2 or beta 47H) and was crystallized, in a complex with NAD+ and the inhibitor 4-iodopyrazole. A site-directed, mutant of beta 1 alcohol dehydrogenase in which a Gly is substituted for, Arg47 (beta 47G) was crystallized in a complex with NAD+. By comparing, both the common and unique features of these structures, it is clear that, position 47 contributes significantly to the strength of protein-coenzyme, interactions. The substitution of Arg47 by His produces an enzyme with a, 100-fold lower affinity for coenzyme, but creates no large changes in the, enzyme structure. The substitution of Arg47 by Gly produces an enzyme with, coenzyme binding characteristics more similar to the wild-type enzyme than, to the enzyme with His at position 47, but the structure of the Gly47, variant exhibits differences in and around the coenzyme binding site., These changes involve a rigid-body rotation of the catalytic domain, towards the coenzyme domain by approximately 0.8 degrees and local, rearrangements of amino acid side-chains, such as a 1.0 A movement of, Lys228, relative to the beta 1 enzyme. These structural alterations may, compensate for the loss of coenzyme interactions contributed by Arg47 and, can explain the high affinity of the Gly47 variant for coenzyme.
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<StructureSection load='1hdy' size='340' side='right'caption='[[1hdy]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1hdy]] 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=1HDY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HDY FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=PYZ:4-IODOPYRAZOLE'>PYZ</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1hdy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hdy OCA], [https://pdbe.org/1hdy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hdy RCSB], [https://www.ebi.ac.uk/pdbsum/1hdy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hdy ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/ADH1B_HUMAN ADH1B_HUMAN]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hd/1hdy_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1hdy ConSurf].
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<div style="clear:both"></div>
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==Disease==
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==See Also==
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Known diseases associated with this structure: Alcoholism, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=103720 103720]]
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*[[Alcohol dehydrogenase 3D structures|Alcohol dehydrogenase 3D structures]]
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__TOC__
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==About this Structure==
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</StructureSection>
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1HDY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with ZN, CL, NAD and PYZ as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Alcohol_dehydrogenase Alcohol dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.1 1.1.1.1] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1HDY OCA].
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==Reference==
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Structures of three human beta alcohol dehydrogenase variants. Correlations with their functional differences., Hurley TD, Bosron WF, Stone CL, Amzel LM, J Mol Biol. 1994 Jun 10;239(3):415-29. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8201622 8201622]
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[[Category: Alcohol dehydrogenase]]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Amzel, L.M.]]
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[[Category: Amzel LM]]
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[[Category: Hurley, T.D.]]
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[[Category: Hurley TD]]
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[[Category: CL]]
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[[Category: NAD]]
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[[Category: PYZ]]
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[[Category: ZN]]
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[[Category: oxidoreductase(nad(a)-choh(d))]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 17:16:47 2007''
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Current revision

THREE-DIMENSIONAL STRUCTURES OF THREE HUMAN ALCOHOL DEHYDROGENASE VARIANTS: CORRELATIONS WITH THEIR FUNCTIONAL DIFFERENCES

PDB ID 1hdy

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