2z5l

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[[Image:2z5l.png|left|200px]]
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==The first ketoreductase of the tylosin PKS==
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<StructureSection load='2z5l' size='340' side='right' caption='[[2z5l]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2z5l]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptomyces_fradiae Streptomyces fradiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Z5L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Z5L FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">tylG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1906 Streptomyces fradiae])</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/3-oxoacyl-[acyl-carrier-protein]_reductase 3-oxoacyl-[acyl-carrier-protein] reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.100 1.1.1.100] </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=2z5l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2z5l OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2z5l RCSB], [http://www.ebi.ac.uk/pdbsum/2z5l 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/z5/2z5l_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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Because it controls the majority of polyketide stereocenters, the ketoreductase (KR) is a central target in engineering polyketide synthases (PKSs). To elucidate the mechanisms of stereocontrol, the structure of KR from the first module of the tylosin PKS was determined. A comparison with a recently solved erythromycin KR that operates on the same substrate explains why their products have opposite alpha-substituent chiralities. The structure reveals how polyketides are guided into the active site by key residues in different KR types. There are four types of reductase-competent KRs, each capable of fixing a unique combination of alpha-substituent and beta-hydroxyl group chiralities, as well as two types of reductase-incompetent KRs that control alpha-substituent chirality alone. A protocol to assign how a module will enforce substituent chirality based on its sequence is presented.
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{{STRUCTURE_2z5l| PDB=2z5l | SCENE= }}
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A tylosin ketoreductase reveals how chirality is determined in polyketides.,Keatinge-Clay AT Chem Biol. 2007 Aug;14(8):898-908. PMID:17719489<ref>PMID:17719489</ref>
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===The first ketoreductase of the tylosin PKS===
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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_17719489}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[2z5l]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptomyces_fradiae Streptomyces fradiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Z5L OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:017719489</ref><references group="xtra"/>
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[[Category: Streptomyces fradiae]]
[[Category: Streptomyces fradiae]]
[[Category: Keatinge-Clay, A T.]]
[[Category: Keatinge-Clay, A T.]]

Revision as of 05:14, 2 October 2014

The first ketoreductase of the tylosin PKS

2z5l, resolution 1.95Å

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