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2y0p

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==CRYSTAL STRUCTURE OF THE SUCA DOMAIN OF MYCOBACTERIUM SMEGMATIS ALPHA-KETOGLUTARATE DECARBOXYLASE IN COMPLEX WITH THE ENAMINE-THDP INTERMEDIATE AND ACETYL-COA==
==CRYSTAL STRUCTURE OF THE SUCA DOMAIN OF MYCOBACTERIUM SMEGMATIS ALPHA-KETOGLUTARATE DECARBOXYLASE IN COMPLEX WITH THE ENAMINE-THDP INTERMEDIATE AND ACETYL-COA==
<StructureSection load='2y0p' size='340' side='right' caption='[[2y0p]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
<StructureSection load='2y0p' size='340' side='right' caption='[[2y0p]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2y0p]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_smegmatis Mycobacterium smegmatis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Y0P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Y0P FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2y0p]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycs2 Mycs2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Y0P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Y0P FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACO:ACETYL+COENZYME+*A'>ACO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TD7:(4E)-4-{3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-(2-{[(S)-HYDROXY(PHOSPHONOOXY)PHOSPHORYL]OXY}ETHYL)-4-METHYL-1,3-THIAZOL-2(3H)-YLIDENE}-4-HYDROXYBUTANOIC+ACID'>TD7</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACO:ACETYL+COENZYME+*A'>ACO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TD7:(4E)-4-{3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-(2-{[(S)-HYDROXY(PHOSPHONOOXY)PHOSPHORYL]OXY}ETHYL)-4-METHYL-1,3-THIAZOL-2(3H)-YLIDENE}-4-HYDROXYBUTANOIC+ACID'>TD7</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2xt5|2xt5]], [[2xt8|2xt8]], [[2xta|2xta]], [[2xt7|2xt7]], [[2xt9|2xt9]], [[2xt6|2xt6]]</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2xt5|2xt5]], [[2xt8|2xt8]], [[2xta|2xta]], [[2xt7|2xt7]], [[2xt9|2xt9]], [[2xt6|2xt6]]</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/2-oxoglutarate_decarboxylase 2-oxoglutarate decarboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.71 4.1.1.71] </span></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/2-oxoglutarate_decarboxylase 2-oxoglutarate decarboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.71 4.1.1.71] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2y0p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2y0p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2y0p RCSB], [http://www.ebi.ac.uk/pdbsum/2y0p PDBsum]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2y0p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2y0p OCA], [http://pdbe.org/2y0p PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2y0p RCSB], [http://www.ebi.ac.uk/pdbsum/2y0p PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2y0p ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/KGD_MYCS2 KGD_MYCS2]] Shows three enzymatic activities that share a first common step, the attack of thiamine-PP on 2-oxoglutarate (alpha-ketoglutarate, KG), leading to the formation of an enamine-thiamine-PP intermediate upon decarboxylation. Thus, displays KGD activity, catalyzing the decarboxylation from five-carbon 2-oxoglutarate to four-carbon succinate semialdehyde (SSA). Also catalyzes C-C bond formation between the activated aldehyde formed after decarboxylation of alpha-ketoglutarate and the carbonyl of glyoxylate (GLX), to yield 2-hydroxy-3-oxoadipate (HOA), which spontaneously decarboxylates to form 5-hydroxylevulinate (HLA). And is also a component of the 2-oxoglutarate dehydrogenase (ODH) complex, that catalyzes the overall conversion of 2-oxoglutarate to succinyl-CoA and CO(2). The KG decarboxylase and KG dehydrogenase reactions provide two alternative, tightly regulated, pathways connecting the oxidative and reductive branches of the TCA cycle.<ref>PMID:19019160</ref> <ref>PMID:21867916</ref>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 2y0p" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: 2-oxoglutarate decarboxylase]]
[[Category: 2-oxoglutarate decarboxylase]]
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[[Category: Mycobacterium smegmatis]]
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[[Category: Mycs2]]
[[Category: Alzari, P M]]
[[Category: Alzari, P M]]
[[Category: Bellinzoni, M]]
[[Category: Bellinzoni, M]]

Revision as of 23:49, 4 August 2016

CRYSTAL STRUCTURE OF THE SUCA DOMAIN OF MYCOBACTERIUM SMEGMATIS ALPHA-KETOGLUTARATE DECARBOXYLASE IN COMPLEX WITH THE ENAMINE-THDP INTERMEDIATE AND ACETYL-COA

2y0p, resolution 2.40Å

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