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==LIPOYL DOMAIN FROM THE DIHYDROLIPOYL SUCCINYLTRANSFERASE COMPONENT OF THE 2-OXOGLUTARATE DEHYDROGENASE MULTIENZYME COMPLEX OF ESCHERICHIA COLI, NMR, 25 STRUCTURES==
==LIPOYL DOMAIN FROM THE DIHYDROLIPOYL SUCCINYLTRANSFERASE COMPONENT OF THE 2-OXOGLUTARATE DEHYDROGENASE MULTIENZYME COMPLEX OF ESCHERICHIA COLI, NMR, 25 STRUCTURES==
<StructureSection load='1pmr' size='340' side='right' caption='[[1pmr]], [[NMR_Ensembles_of_Models | 25 NMR models]]' scene=''>
<StructureSection load='1pmr' size='340' side='right'caption='[[1pmr]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1pmr]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. The October 2012 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Citric Acid Cycle''  by David Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2012_10 10.2210/rcsb_pdb/mom_2012_10]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PMR OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PMR FirstGlance]. <br>
<table><tr><td colspan='2'>[[1pmr]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The October 2012 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Citric Acid Cycle''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2012_10 10.2210/rcsb_pdb/mom_2012_10]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PMR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PMR FirstGlance]. <br>
</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Dihydrolipoyllysine-residue_succinyltransferase Dihydrolipoyllysine-residue succinyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.61 2.3.1.61] </span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
<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=1pmr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pmr OCA], [http://pdbe.org/1pmr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1pmr RCSB], [http://www.ebi.ac.uk/pdbsum/1pmr PDBsum]</span></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=1pmr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pmr OCA], [https://pdbe.org/1pmr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pmr RCSB], [https://www.ebi.ac.uk/pdbsum/1pmr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pmr ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/ODO2_ECOLI ODO2_ECOLI]] The 2-oxoglutarate dehydrogenase complex catalyzes the overall conversion of 2-oxoglutarate to succinyl-CoA and CO(2). It contains multiple copies of three enzymatic components: 2-oxoglutarate dehydrogenase (E1), dihydrolipoamide succinyltransferase (E2) and lipoamide dehydrogenase (E3).  
[https://www.uniprot.org/uniprot/ODO2_ECOLI ODO2_ECOLI] The 2-oxoglutarate dehydrogenase complex catalyzes the overall conversion of 2-oxoglutarate to succinyl-CoA and CO(2). It contains multiple copies of three enzymatic components: 2-oxoglutarate dehydrogenase (E1), dihydrolipoamide succinyltransferase (E2) and lipoamide dehydrogenase (E3).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pm/1pmr_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pm/1pmr_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
Line 18: Line 19:
</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=1pmr ConSurf].
</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=1pmr ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A sub-gene encoding the lipoyl domain of the dihydrolipoyl succinyltransferase polypeptide chain of the 2-oxoglutarate dehydrogenase multienzyme complex of Escherichia coli was over-expressed and the protein was purified uniformly labelled with 15N. The three-dimensional structure of the domain was determined by means of nuclear magnetic resonance spectroscopy, based on 905 nuclear Overhauser effect inter-proton distance restraints, 42 phi torsion angle restraints and hydrogen bond restraints from 24 slowly exchanging amide protons. The structure of the 80-residue domain is that of a flattened beta-barrel surrounding a hydrophobic core in which Trp22 plays a central role in anchoring two four-stranded sheets together. The polypeptide backbone exhibits a 2-fold axis of quasi-symmetry, with the lipoylation site, Lys43, located at the tip of an exposed beta-turn in one beta-sheet and the N and C-terminal residues close together in space in the other beta-sheet. The atomic r.m.s. distribution about the mean coordinate is 0.46 A for the backbone atoms in the highly structured region and 0.88 A along the entire backbone (residues Ser1 to Asn80), including a less well-defined surface loop and the lipoyl-lysine beta-turn. The structure closely resembles that of the lipoyl domains from pyruvate dehydrogenase complexes, in accord with the existence of strongly conserved residues at critical positions in the domains. The structures of the lipoyl domains throw light on the requirements for the specificity of reductive acylation of their pendant lipoyl groups in the parent 2-oxo acid dehydrogenase complexes; an important aspect of the mechanisms underlying active site coupling and substrate channelling.
Three-dimensional structure of the lipoyl domain from the dihydrolipoyl succinyltransferase component of the 2-oxoglutarate dehydrogenase multienzyme complex of Escherichia coli.,Ricaud PM, Howard MJ, Roberts EL, Broadhurst RW, Perham RN J Mol Biol. 1996 Nov 22;264(1):179-90. PMID:8950276<ref>PMID:8950276</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1pmr" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[2-Oxoglutarate Dehydrogenase|2-Oxoglutarate Dehydrogenase]]
*[[2-oxoglutarate dehydrogenase 3D structures|2-oxoglutarate dehydrogenase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Citric Acid Cycle]]
[[Category: Citric Acid Cycle]]
[[Category: Dihydrolipoyllysine-residue succinyltransferase]]
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Broadhurst, R W]]
[[Category: Broadhurst RW]]
[[Category: Howard, M J]]
[[Category: Howard MJ]]
[[Category: Perham, R N]]
[[Category: Perham RN]]
[[Category: Ricaud, P M]]
[[Category: Ricaud PM]]
[[Category: Roberts, E L]]
[[Category: Roberts EL]]
[[Category: 2-oxoglutarate dehydrogenase]]
[[Category: Complex]]
[[Category: Glycolysis]]
[[Category: Lipoyl domain]]
[[Category: Transferase]]

Latest revision as of 08:56, 17 April 2024

LIPOYL DOMAIN FROM THE DIHYDROLIPOYL SUCCINYLTRANSFERASE COMPONENT OF THE 2-OXOGLUTARATE DEHYDROGENASE MULTIENZYME COMPLEX OF ESCHERICHIA COLI, NMR, 25 STRUCTURESLIPOYL DOMAIN FROM THE DIHYDROLIPOYL SUCCINYLTRANSFERASE COMPONENT OF THE 2-OXOGLUTARATE DEHYDROGENASE MULTIENZYME COMPLEX OF ESCHERICHIA COLI, NMR, 25 STRUCTURES

Structural highlights

1pmr is a 1 chain structure with sequence from Escherichia coli. The October 2012 RCSB PDB Molecule of the Month feature on Citric Acid Cycle by David Goodsell is 10.2210/rcsb_pdb/mom_2012_10. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Solution NMR
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ODO2_ECOLI The 2-oxoglutarate dehydrogenase complex catalyzes the overall conversion of 2-oxoglutarate to succinyl-CoA and CO(2). It contains multiple copies of three enzymatic components: 2-oxoglutarate dehydrogenase (E1), dihydrolipoamide succinyltransferase (E2) and lipoamide dehydrogenase (E3).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

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