1mdl: Difference between revisions

New page: left|200px<br /> <applet load="1mdl" size="450" color="white" frame="true" align="right" spinBox="true" caption="1mdl, resolution 1.85Å" /> '''MANDELATE RACEMASE ...
 
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[[Image:1mdl.gif|left|200px]]<br />
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'''MANDELATE RACEMASE MUTANT K166R CO-CRYSTALLIZED WITH (R)-MANDELATE'''<br />


==Overview==
==MANDELATE RACEMASE MUTANT K166R CO-CRYSTALLIZED WITH (R)-MANDELATE==
On the basis of the available high-resolution structures of mandelate, racemase (MR) from Pseudomonas putida [Landro, J. A., Gerlt, J. A., Kozarich, J. W., Koo, C. W., Shah, V. J., Kenyon, G. L., Neidhart, D. J., Fujita, J., &amp; Petsko, G. A. (1994) Biochemistry 33, 635-643], Lys 166 and, His 297 are positioned appropriately to participate in catalysis as, acid/base catalysts that either abstract the alpha-proton from the, enantiomers of mandelate to form an enolic intermediate or protonate the, enolic intermediate to form the enantiomers of mandelate, with Lys 166, participating as the (S)-specific acid/base catalyst and His 297, participating as the (R)-specific acid/base catalyst. In this paper we, report the structural and mechanistic properties of the mutant in which, Lys 166 has ... [[http://ispc.weizmann.ac.il/pmbin/getpm?7893690 (full description)]]
<StructureSection load='1mdl' size='340' side='right'caption='[[1mdl]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1mdl]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MDL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MDL 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]] 1.85&#8491;</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=RMN:(R)-MANDELIC+ACID'>RMN</scene>, <scene name='pdbligand=SMN:(S)-MANDELIC+ACID'>SMN</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=1mdl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mdl OCA], [https://pdbe.org/1mdl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mdl RCSB], [https://www.ebi.ac.uk/pdbsum/1mdl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mdl ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/MANR_PSEPU MANR_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/md/1mdl_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=1mdl ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
1MDL is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]] with MG, RMN and SMN as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/ ]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.1.2.2 5.1.2.2]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1MDL OCA]].
*[[Mandelate racemase|Mandelate racemase]]
 
__TOC__
==Reference==
</StructureSection>
Mechanism of the reaction catalyzed by mandelate racemase: structure and mechanistic properties of the K166R mutant., Kallarakal AT, Mitra B, Kozarich JW, Gerlt JA, Clifton JG, Petsko GA, Kenyon GL, Biochemistry. 1995 Mar 7;34(9):2788-97. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7893690 7893690]
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Single protein]]
[[Category: Clifton JG]]
[[Category: Clifton, J.G.]]
[[Category: Petsko GA]]
[[Category: Petsko, G.A.]]
[[Category: MG]]
[[Category: RMN]]
[[Category: SMN]]
[[Category: isomerase]]
[[Category: magnesium]]
[[Category: mandelate pathway]]
 
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