1ooy: Difference between revisions
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[[Image:1ooy.jpg|left|200px]] | [[Image:1ooy.jpg|left|200px]] | ||
'''SUCCINYL-COA:3-KETOACID COA TRANSFERASE FROM PIG HEART''' | {{Structure | ||
|PDB= 1ooy |SIZE=350|CAPTION= <scene name='initialview01'>1ooy</scene>, resolution 1.70Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=K:POTASSIUM+ION'>K</scene> and <scene name='pdbligand=PO4:PHOSPHATE ION'>PO4</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/3-oxoacid_CoA-transferase 3-oxoacid CoA-transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.8.3.5 2.8.3.5] | |||
|GENE= OXCT OR SCOT ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9823 Sus scrofa]) | |||
}} | |||
'''SUCCINYL-COA:3-KETOACID COA TRANSFERASE FROM PIG HEART''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1OOY is a [ | 1OOY is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OOY OCA]. | ||
==Reference== | ==Reference== | ||
Structure of the CoA transferase from pig heart to 1.7 A resolution., Coros AM, Swenson L, Wolodko WT, Fraser ME, Acta Crystallogr D Biol Crystallogr. 2004 Oct;60(Pt 10):1717-25. Epub 2004, Sep 23. PMID:[http:// | Structure of the CoA transferase from pig heart to 1.7 A resolution., Coros AM, Swenson L, Wolodko WT, Fraser ME, Acta Crystallogr D Biol Crystallogr. 2004 Oct;60(Pt 10):1717-25. Epub 2004, Sep 23. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15388917 15388917] | ||
[[Category: 3-oxoacid CoA-transferase]] | [[Category: 3-oxoacid CoA-transferase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: alpha/beta protein]] | [[Category: alpha/beta protein]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:13:44 2008'' | ||
Revision as of 14:13, 20 March 2008
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| , resolution 1.70Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Gene: | OXCT OR SCOT (Sus scrofa) | ||||||
| Activity: | 3-oxoacid CoA-transferase, with EC number 2.8.3.5 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
SUCCINYL-COA:3-KETOACID COA TRANSFERASE FROM PIG HEART
OverviewOverview
Succinyl-CoA:3-ketoacid CoA transferase (SCOT; EC 2.8.3.5) activates the acetoacetate in ketone bodies by transferring the CoA group from succinyl-CoA to acetoacetate to produce acetoacetyl-CoA and succinate. In the reaction, a glutamate residue at the active site of the enzyme forms a thioester bond with CoA and in this form the enzyme is subject to autolytic fragmentation. The crystal structure of pig heart SCOT has been solved and refined to 1.7 A resolution in a new crystal form. The structure shows the active-site glutamate residue in a conformation poised for autolytic fragmentation, with its side chain accepting one hydrogen bond from Asn281 and another from its own amide N atom. However, the conformation of this glutamate side chain would have to change for the residues that are conserved in the CoA transferases (Gln99, Gly386 and Ala387) to participate in stabilizing the tetrahedral transition states of the catalytic mechanism. The structures of a deletion mutant in two different crystal forms were also solved.
About this StructureAbout this Structure
1OOY is a Single protein structure of sequence from Sus scrofa. Full crystallographic information is available from OCA.
ReferenceReference
Structure of the CoA transferase from pig heart to 1.7 A resolution., Coros AM, Swenson L, Wolodko WT, Fraser ME, Acta Crystallogr D Biol Crystallogr. 2004 Oct;60(Pt 10):1717-25. Epub 2004, Sep 23. PMID:15388917
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