1scu

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1scu]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SCU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1SCU FirstGlance]. <br>
<table><tr><td colspan='2'>[[1scu]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SCU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1SCU FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene><br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NEP:N1-PHOSPHONOHISTIDINE'>NEP</scene></td></tr>
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<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NEP:N1-PHOSPHONOHISTIDINE'>NEP</scene></td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Succinate--CoA_ligase_(ADP-forming) Succinate--CoA ligase (ADP-forming)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.2.1.5 6.2.1.5] </span></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Succinate--CoA_ligase_(ADP-forming) Succinate--CoA ligase (ADP-forming)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.2.1.5 6.2.1.5] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1scu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1scu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1scu RCSB], [http://www.ebi.ac.uk/pdbsum/1scu 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=1scu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1scu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1scu RCSB], [http://www.ebi.ac.uk/pdbsum/1scu PDBsum]</span></td></tr>
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<table>
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</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/SUCD_ECOLI SUCD_ECOLI]] During aerobic metabolism it functions in the citric acid cycle, coupling the hydrolysis of succinyl-CoA to the synthesis of ATP and thus represents an important site of substrate-level phosphorylation. It can also function in the other direction for anabolic purposes, and this may be particularly important for providing succinyl-CoA during anaerobic growth when the oxidative route from 2-oxoglutarate is severely repressed. The alpha-subunit binds CoA, as well as ATP and catalyzes phosphoryl transfer to one of its histidine residues. The complete active site is probably located in the region of alpha-beta contact. [[http://www.uniprot.org/uniprot/SUCC_ECOLI SUCC_ECOLI]] During aerobic metabolism it functions in the citric acid cycle, coupling the hydrolysis of succinyl-CoA to the synthesis of ATP and thus represents an important site of substrate-level phosphorylation. It can also function in the other direction for anabolic purposes, and this may be particularly important for providing succinyl-CoA during anaerobic growth when the oxidative route from 2-oxoglutarate is severely repressed. The beta-subunit contains the attachment sites for succinate. The complete active site is probably located in the region of alpha-beta contact.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</StructureSection>
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Bridger, W A.]]
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[[Category: Bridger, W A]]
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[[Category: Fraser, M E.]]
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[[Category: Fraser, M E]]
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[[Category: James, M N.G.]]
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[[Category: James, M N.G]]
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[[Category: Wolodko, W T.]]
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[[Category: Wolodko, W T]]

Revision as of 11:47, 25 December 2014

THE CRYSTAL STRUCTURE OF SUCCINYL-COA SYNTHETASE FROM ESCHERICHIA COLI AT 2.5 ANGSTROMS RESOLUTION

1scu, resolution 2.50Å

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