1geg

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[[Image:1geg.jpg|left|200px]]<br /><applet load="1geg" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1geg.jpg|left|200px]]
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caption="1geg, resolution 1.7&Aring;" />
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'''CRYATAL STRUCTURE ANALYSIS OF MESO-2,3-BUTANEDIOL DEHYDROGENASE'''<br />
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{{Structure
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|PDB= 1geg |SIZE=350|CAPTION= <scene name='initialview01'>1geg</scene>, resolution 1.7&Aring;
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|SITE=
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|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>
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|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]
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|GENE=
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}}
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'''CRYATAL STRUCTURE ANALYSIS OF MESO-2,3-BUTANEDIOL DEHYDROGENASE'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1GEG is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae] with <scene name='pdbligand=GLC:'>GLC</scene>, <scene name='pdbligand=MG:'>MG</scene>, <scene name='pdbligand=NAD:'>NAD</scene> and <scene name='pdbligand=BME:'>BME</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [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] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GEG OCA].
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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==
==Reference==
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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://ispc.weizmann.ac.il//pmbin/getpm?pmid=11173520 11173520]
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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]
[[Category: Acetoin dehydrogenase]]
[[Category: Acetoin dehydrogenase]]
[[Category: Klebsiella pneumoniae]]
[[Category: Klebsiella pneumoniae]]
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[[Category: sdr family]]
[[Category: sdr family]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:49:11 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:21:59 2008''

Revision as of 09:22, 20 March 2008

Image:1geg.jpg


PDB ID 1geg

Drag the structure with the mouse to rotate
, resolution 1.7Å
Ligands: , , and
Activity: Acetoin dehydrogenase, with EC number 1.1.1.5
Coordinates: save as pdb, mmCIF, xml



CRYATAL STRUCTURE ANALYSIS OF MESO-2,3-BUTANEDIOL DEHYDROGENASE


Overview

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

1GEG is a Single protein structure of sequence from Klebsiella pneumoniae. Full crystallographic information is available from OCA.

Reference

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

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