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1fwa

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(New page: 200px<br /> <applet load="1fwa" size="450" color="white" frame="true" align="right" spinBox="true" caption="1fwa, resolution 2.0&Aring;" /> '''KLEBSIELLA AEROGENES...)
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[[Image:1fwa.gif|left|200px]]<br />
 
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<applet load="1fwa" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1fwa, resolution 2.0&Aring;" />
 
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'''KLEBSIELLA AEROGENES UREASE, C319A VARIANT AT PH 7.5'''<br />
 
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==Overview==
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==KLEBSIELLA AEROGENES UREASE, C319A VARIANT AT PH 7.5==
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Cys319 is located on a mobile flap covering the active site of Klebsiella, aerogenes urease but does not play an essential role in catalysis. Four, urease variants altered at position C319 range from having high activity, (C319A) to no measurable activity (C319Y), indicating Cys is not required, at this position, but its presence is highly influential [Martin, P. R., &amp;, Hausinger, R. P. (1992) J. Biol. Chem. 267, 20024-20027]. Here, we present, 2.0 A resolution crystal structures of C319A, C319S, C319D, and C319Y, proteins and the C319A variant inhibited by acetohydroxamic acid. These, structures show changes in the hydration of the active site nickel ions, and in the position and flexibility of the active site flap. The C319Y, protein exhibits an alternate conformation of the flap, ... [[http://ispc.weizmann.ac.il/pmbin/getpm?9201965 (full description)]]
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<StructureSection load='1fwa' size='340' side='right'caption='[[1fwa]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1fwa]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Klebsiella_aerogenes Klebsiella aerogenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FWA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FWA FirstGlance]. <br>
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</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&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO3:CARBONATE+ION'>CO3</scene>, <scene name='pdbligand=KCX:LYSINE+NZ-CARBOXYLIC+ACID'>KCX</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1fwa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fwa OCA], [https://pdbe.org/1fwa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fwa RCSB], [https://www.ebi.ac.uk/pdbsum/1fwa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fwa ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/URE3_KLEAE URE3_KLEAE]
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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/fw/1fwa_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/main_output.php?pdb_ID=1fwa ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1FWA is a [[http://en.wikipedia.org/wiki/Protein_complex Protein complex]] structure of sequences from [[http://en.wikipedia.org/wiki/Klebsiella_aerogenes Klebsiella aerogenes]] with NI and CO3 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=3.5.1.5 3.5.1.5]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1FWA OCA]].
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*[[Urease 3D structures|Urease 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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Structures of Cys319 variants and acetohydroxamate-inhibited Klebsiella aerogenes urease., Pearson MA, Michel LO, Hausinger RP, Karplus PA, Biochemistry. 1997 Jul 1;36(26):8164-72. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9201965 9201965]
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[[Category: Klebsiella aerogenes]]
[[Category: Klebsiella aerogenes]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Karplus, P.A.]]
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[[Category: Karplus PA]]
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[[Category: Pearson, M.A.]]
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[[Category: Pearson MA]]
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[[Category: CO3]]
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[[Category: NI]]
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[[Category: hydrolase(urea amido)]]
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[[Category: mutant]]
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[[Category: nickel metalloenzyme]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Oct 29 20:40:24 2007''
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Current revision

KLEBSIELLA AEROGENES UREASE, C319A VARIANT AT PH 7.5

PDB ID 1fwa

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