1m3e: Difference between revisions

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<StructureSection load='1m3e' size='340' side='right'caption='[[1m3e]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='1m3e' size='340' side='right'caption='[[1m3e]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1m3e]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pig Pig]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M3E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M3E FirstGlance]. <br>
<table><tr><td colspan='2'>[[1m3e]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M3E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M3E FirstGlance]. <br>
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/3-oxoacid_CoA-transferase 3-oxoacid CoA-transferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.8.3.5 2.8.3.5] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=1m3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m3e OCA], [https://pdbe.org/1m3e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m3e RCSB], [https://www.ebi.ac.uk/pdbsum/1m3e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m3e ProSAT]</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=1m3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m3e OCA], [https://pdbe.org/1m3e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m3e RCSB], [https://www.ebi.ac.uk/pdbsum/1m3e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m3e ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/SCOT1_PIG SCOT1_PIG]] Key enzyme for ketone body catabolism. Transfers the CoA moiety from succinate to acetoacetate. Formation of the enzyme-CoA intermediate proceeds via an unstable anhydride species formed between the carboxylate groups of the enzyme and substrate.  
[https://www.uniprot.org/uniprot/SCOT1_PIG SCOT1_PIG] Key enzyme for ketone body catabolism. Transfers the CoA moiety from succinate to acetoacetate. Formation of the enzyme-CoA intermediate proceeds via an unstable anhydride species formed between the carboxylate groups of the enzyme and substrate.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=1m3e 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=1m3e ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Ketoacidosis affects patients who are deficient in the enzyme activity of succinyl-CoA:3-ketoacid CoA transferase (SCOT), since SCOT catalyses the activation of acetoacetate in the metabolism of ketone bodies. Thus far, structure/function analysis of the mammalian enzyme has been predicted based on the three-dimensional structure of a CoA transferase determined from an anaerobic bacterium that utilizes its enzyme for glutamate fermentation. To better interpret clinical data, we have determined the structure of a mammalian CoA transferase from pig heart by X-ray crystallography to 2.5 A resolution. Instrumental to the structure determination were selenomethionine substitution and the use of argon during purification and crystallization. Although pig heart SCOT adopts an alpha/beta protein fold, resembling the overall fold of the bacterial CoA transferase, several loops near the active site of pig heart SCOT follow different paths than the corresponding loops in the bacterial enzyme, accounting for differences in substrate specificities. Two missense mutations found associated with SCOT of ketoacidosis patients were mapped to a location in the structure that might disrupt the stabilization of the amino-terminal strand and thereby interfere with the proper folding of the protein into a functional enzyme.
Structure of the mammalian CoA transferase from pig heart.,Bateman KS, Brownie ER, Wolodko WT, Fraser ME Biochemistry. 2002 Dec 10;41(49):14455-62. PMID:12463743<ref>PMID:12463743</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1m3e" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: 3-oxoacid CoA-transferase]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Pig]]
[[Category: Sus scrofa]]
[[Category: Bateman, K S]]
[[Category: Bateman KS]]
[[Category: Brownie, E R]]
[[Category: Brownie ER]]
[[Category: Fraser, M E]]
[[Category: Fraser ME]]
[[Category: Wolodko, W T]]
[[Category: Wolodko WT]]
[[Category: Alpha/beta protein]]
[[Category: Transferase]]

Revision as of 11:31, 10 April 2024

Succinyl-COA:3-ketoacid COA transferase from pig heart (selenomethionine)Succinyl-COA:3-ketoacid COA transferase from pig heart (selenomethionine)

Structural highlights

1m3e is a 4 chain structure with sequence from Sus scrofa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.5Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SCOT1_PIG Key enzyme for ketone body catabolism. Transfers the CoA moiety from succinate to acetoacetate. Formation of the enzyme-CoA intermediate proceeds via an unstable anhydride species formed between the carboxylate groups of the enzyme and substrate.

Evolutionary Conservation

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

1m3e, resolution 2.50Å

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OCA
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