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[[Image:1geg.jpg|left|200px]]


{{Structure
==CRYATAL STRUCTURE ANALYSIS OF MESO-2,3-BUTANEDIOL DEHYDROGENASE==
|PDB= 1geg |SIZE=350|CAPTION= <scene name='initialview01'>1geg</scene>, resolution 1.7&Aring;
<StructureSection load='1geg' size='340' side='right'caption='[[1geg]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=GLC:GLUCOSE'>GLC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene> and <scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>
<table><tr><td colspan='2'>[[1geg]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GEG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GEG FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Acetoin_dehydrogenase Acetoin dehydrogenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.5 1.1.1.5]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</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=1geg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1geg OCA], [https://pdbe.org/1geg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1geg RCSB], [https://www.ebi.ac.uk/pdbsum/1geg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1geg ProSAT]</span></td></tr>
 
</table>
'''CRYATAL STRUCTURE ANALYSIS OF MESO-2,3-BUTANEDIOL DEHYDROGENASE'''
== Function ==
 
[https://www.uniprot.org/uniprot/BUDC_KLEPN BUDC_KLEPN] Catalyzes the reversible reduction of (S)-acetoin to 2,3-butanediol in the presence of NADH.
 
== Evolutionary Conservation ==
==Overview==
[[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/ge/1geg_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=1geg ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structure of a ternary complex of meso-2,3-butanediol dehydrogenase with NAD+ and a competitive inhibitor, mercaptoethanol, has been determined at 1.7 A resolution by means of molecular replacement and refined to a final R-factor of 0.194. The overall structure is similar to those of the other short chain dehydrogenase/reductase enzymes. The NAD+ binding site, and the positions of catalytic residues Ser139, Tyr152, and Lys156 are also conserved. The crystal structure revealed that mercaptoethanol bound specifically to meso-2,3-butanediol dehydrogenase. Two residues around the active site, Gln140 and Gly183, forming hydrogen bonds with the inhibitor, are important but not sufficient for distinguishing stereoisomerism of a chiral substrate.
The crystal structure of a ternary complex of meso-2,3-butanediol dehydrogenase with NAD+ and a competitive inhibitor, mercaptoethanol, has been determined at 1.7 A resolution by means of molecular replacement and refined to a final R-factor of 0.194. The overall structure is similar to those of the other short chain dehydrogenase/reductase enzymes. The NAD+ binding site, and the positions of catalytic residues Ser139, Tyr152, and Lys156 are also conserved. The crystal structure revealed that mercaptoethanol bound specifically to meso-2,3-butanediol dehydrogenase. Two residues around the active site, Gln140 and Gly183, forming hydrogen bonds with the inhibitor, are important but not sufficient for distinguishing stereoisomerism of a chiral substrate.


==About this Structure==
Crystal structure of meso-2,3-butanediol dehydrogenase in a complex with NAD+ and inhibitor mercaptoethanol at 1.7 A resolution for understanding of chiral substrate recognition mechanisms.,Otagiri M, Kurisu G, Ui S, Takusagawa Y, Ohkuma M, Kudo T, Kusunoki M J Biochem. 2001 Feb;129(2):205-8. PMID:11173520<ref>PMID:11173520</ref>
1GEG is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GEG OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Crystal structure of meso-2,3-butanediol dehydrogenase in a complex with NAD+ and inhibitor mercaptoethanol at 1.7 A resolution for understanding of chiral substrate recognition mechanisms., Otagiri M, Kurisu G, Ui S, Takusagawa Y, Ohkuma M, Kudo T, Kusunoki M, J Biochem. 2001 Feb;129(2):205-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11173520 11173520]
</div>
[[Category: Acetoin dehydrogenase]]
<div class="pdbe-citations 1geg" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Klebsiella pneumoniae]]
[[Category: Klebsiella pneumoniae]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Kurisu, G.]]
[[Category: Kurisu G]]
[[Category: Kusunoki, M.]]
[[Category: Kusunoki M]]
[[Category: Otagiri, M.]]
[[Category: Otagiri M]]
[[Category: Ui, S.]]
[[Category: Ui S]]
[[Category: BME]]
[[Category: GLC]]
[[Category: MG]]
[[Category: NAD]]
[[Category: sdr family]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:21:59 2008''
Retrieved from "https://proteopedia.org/1geg"