2v3w: Difference between revisions
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== | ==Crystal structure of the benzoylformate decarboxylase variant L461A from Pseudomonas putida== | ||
<StructureSection load='2v3w' size='340' side='right'caption='[[2v3w]], [[Resolution|resolution]] 2.20Å' scene=''> | |||
[[Category: | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2v3w]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_putida Pseudomonas putida]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V3W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2V3W FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TPP:THIAMINE+DIPHOSPHATE'>TPP</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=2v3w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2v3w OCA], [https://pdbe.org/2v3w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2v3w RCSB], [https://www.ebi.ac.uk/pdbsum/2v3w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2v3w ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/MDLC_PSEPU MDLC_PSEPU] | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/v3/2v3w_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=2v3w ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Benzoylformate decarboxylase (BFD) from Pseudomonas putida is an exceptional thiamin diphosphate-dependent enzyme, as it catalyzes the formation of (S)-2-hydroxy-1-phenylpropan-1-one from benzaldehyde and acetaldehyde. This is the only currently known S-selective reaction (92 % ee) catalyzed by this otherwise R-selective class of enzymes. Here we describe the molecular basis of the introduction of S selectivity into ThDP-dependent decarboxylases. By shaping the active site of BFD through the use of rational protein design, structural analysis, and molecular modeling, optimal steric stabilization of the acceptor aldehyde in a structural element called the S pocket was identified as the predominant interaction for adjusting stereoselectivity. Our studies revealed Leu461 as a hot spot for stereoselectivity in BFD. Exchange to alanine and glycine resulted in variants that catalyze the S-stereoselective addition of larger acceptor aldehydes, such as propanal with benzaldehyde and its derivatives-a reaction not catalyzed by the wild-type enzyme. Crystal structure analysis of the variant BFDL461A supports the modeling studies. | |||
Rational protein design of ThDP-dependent enzymes-engineering stereoselectivity.,Gocke D, Walter L, Gauchenova E, Kolter G, Knoll M, Berthold CL, Schneider G, Pleiss J, Muller M, Pohl M Chembiochem. 2008 Feb 15;9(3):406-12. PMID:18224647<ref>PMID:18224647</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2v3w" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Pseudomonas putida]] | [[Category: Pseudomonas putida]] | ||
[[Category: Berthold CL]] | |||
[[Category: Berthold | [[Category: Gauchenova K]] | ||
[[Category: Gauchenova | [[Category: Gocke D]] | ||
[[Category: Gocke | [[Category: Knoll M]] | ||
[[Category: Knoll | [[Category: Kolter G]] | ||
[[Category: Kolter | [[Category: Mueller M]] | ||
[[Category: Mueller | [[Category: Pleiss J]] | ||
[[Category: Pleiss | [[Category: Pohl M]] | ||
[[Category: Pohl | [[Category: Schneider G]] | ||
[[Category: Schneider | [[Category: Walter L]] | ||
[[Category: Walter | |||