1mzj

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[[Image:1mzj.png|left|200px]]
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==Crystal Structure of the Priming beta-Ketosynthase from the R1128 Polyketide Biosynthetic Pathway==
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<StructureSection load='1mzj' size='340' side='right' caption='[[1mzj]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1mzj]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptomyces_sp._r1128 Streptomyces sp. r1128]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MZJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1MZJ FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=COA:COENZYME+A'>COA</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ebl|1ebl]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">zhuH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=140437 Streptomyces sp. R1128])</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/Beta-ketoacyl-acyl-carrier-protein_synthase_I Beta-ketoacyl-acyl-carrier-protein synthase I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.41 2.3.1.41] </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=1mzj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mzj OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1mzj RCSB], [http://www.ebi.ac.uk/pdbsum/1mzj PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/mz/1mzj_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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ZhuH is a priming ketosynthase that initiates the elongation of the polyketide chain in the biosynthetic pathway of a type II polyketide, R1128. The crystal structure of ZhuH in complex with the priming substrate acetyl-CoA reveals an extensive loop region at the dimer interface that appears to affect the selectivity for the primer unit. Acetyl-CoA is bound in a 20 A-long channel, which placed the acetyl group against the catalytic triad. Analysis of the primer unit binding site in ZhuH suggests that it can accommodate acyl chains that are two to four carbons long. Selectivity and primer unit size appear to involve the side chains of three residues on the loops close to the dimer interface that constitute the bottom of the substrate binding pocket.
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{{STRUCTURE_1mzj| PDB=1mzj | SCENE= }}
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Crystal structure of the priming beta-ketosynthase from the R1128 polyketide biosynthetic pathway.,Pan H, Tsai S, Meadows ES, Miercke LJ, Keatinge-Clay AT, O'Connell J, Khosla C, Stroud RM Structure. 2002 Nov;10(11):1559-68. PMID:12429097<ref>PMID:12429097</ref>
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===Crystal Structure of the Priming beta-Ketosynthase from the R1128 Polyketide Biosynthetic Pathway===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_12429097}}
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==About this Structure==
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[[1mzj]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptomyces_sp._r1128 Streptomyces sp. r1128]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MZJ OCA].
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==See Also==
==See Also==
*[[Acyl carrier protein synthase|Acyl carrier protein synthase]]
*[[Acyl carrier protein synthase|Acyl carrier protein synthase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:012429097</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Beta-ketoacyl-acyl-carrier-protein synthase I]]
[[Category: Beta-ketoacyl-acyl-carrier-protein synthase I]]
[[Category: Streptomyces sp. r1128]]
[[Category: Streptomyces sp. r1128]]

Revision as of 13:34, 28 September 2014

Crystal Structure of the Priming beta-Ketosynthase from the R1128 Polyketide Biosynthetic Pathway

1mzj, resolution 2.10Å

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