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


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==THREE-DIMENSIONAL STRUCTURE OF THE LIPOYL DOMAIN FROM BACILLUS STEAROTHERMOPHILUS PYRUVATE DEHYDROGENASE MULTIENZYME COMPLEX==
The line below this paragraph, containing "STRUCTURE_1lab", creates the "Structure Box" on the page.
<StructureSection load='1lab' size='340' side='right'caption='[[1lab]]' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1lab]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LAB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LAB FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</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'>[https://proteopedia.org/fgij/fg.htm?mol=1lab FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lab OCA], [https://pdbe.org/1lab PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lab RCSB], [https://www.ebi.ac.uk/pdbsum/1lab PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lab ProSAT]</span></td></tr>
{{STRUCTURE_1lab| PDB=1lab |  SCENE= }}
</table>
== Function ==
[https://www.uniprot.org/uniprot/ODP2_GEOSE ODP2_GEOSE] The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple copies of three enzymatic components: pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase (E3).
== Evolutionary Conservation ==
[[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/la/1lab_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=1lab ConSurf].
<div style="clear:both"></div>


'''THREE-DIMENSIONAL STRUCTURE OF THE LIPOYL DOMAIN FROM BACILLUS STEAROTHERMOPHILUS PYRUVATE DEHYDROGENASE MULTIENZYME COMPLEX'''
==See Also==
 
*[[Dihydrolipoamide acetyltransferase 3D structures|Dihydrolipoamide acetyltransferase 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
The structure of the lipoyl domain from the pyruvate dehydrogenase multienzyme complex of Bacillus stearothermophilus has been determined by means of nuclear magnetic resonance spectroscopy. A total of 452 nuclear Overhauser effect distance constraints and 76 dihedral angle restraints were employed as the input for the structure calculations, which were performed using a hybrid distance geometry-simulated annealing strategy and the programs DISGEO and X-PLOR. The overall structure of the lipoyl domain (residues 1 to 79 of the dihydrolipoamide acetyltransferase polypeptide chain) is that of a flattened eight-stranded beta-barrel folded around a core of well-defined hydrophobic residues. The lipoylation site, lysine 42, is located in the middle of a beta-turn, and the N and C-terminal residues of the domain are close together in adjacent beta-strands at the opposite end of the molecule. The polypeptide backbone exhibits a 2-fold axis of quasi-symmetry, with the C alpha atoms of residues 15 to 39 and 52 to 76 being almost superimposable on those of residues 52 to 76 and 15 to 39, respectively (root-mean-square deviation = 1.48 A). The amino acid residues at key positions in the structure are conserved among all the reported primary structures of lipoyl domains, suggesting that the domains all fold in a similar way.
 
==About this Structure==
1LAB is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LAB OCA].
 
==Reference==
Three-dimensional structure of the lipoyl domain from Bacillus stearothermophilus pyruvate dehydrogenase multienzyme complex., Dardel F, Davis AL, Laue ED, Perham RN, J Mol Biol. 1993 Feb 20;229(4):1037-48. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8445635 8445635]
[[Category: Dihydrolipoyllysine-residue acetyltransferase]]
[[Category: Geobacillus stearothermophilus]]
[[Category: Geobacillus stearothermophilus]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Dardel, F.]]
[[Category: Dardel F]]
[[Category: Davis, A L.]]
[[Category: Davis AL]]
[[Category: Laue, E D.]]
[[Category: Laue ED]]
[[Category: Perham, R N.]]
[[Category: Perham RN]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 23:43:25 2008''

Latest revision as of 08:07, 3 April 2024

THREE-DIMENSIONAL STRUCTURE OF THE LIPOYL DOMAIN FROM BACILLUS STEAROTHERMOPHILUS PYRUVATE DEHYDROGENASE MULTIENZYME COMPLEX

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