1qul: Difference between revisions

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Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

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 ==PHOSPHATE-BINDING PROTEIN MUTANT WITH ASP 137 REPLACED BY THR COMPLEX WITH CHLORINE AND PHOSPHATE==
-<StructureSection load='1qul' size='340' side='right' caption='[[1qul]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
+<StructureSection load='1qul' size='340' side='right'caption='[[1qul]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1qul]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QUL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1QUL FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1qul]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QUL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QUL FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1qul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qul OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1qul RCSB], [http://www.ebi.ac.uk/pdbsum/1qul PDBsum]</span></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=1qul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qul OCA], [https://pdbe.org/1qul PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qul RCSB], [https://www.ebi.ac.uk/pdbsum/1qul PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qul ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/PSTS_ECOLI PSTS_ECOLI]] Part of the ABC transporter complex PstSACB involved in phosphate import.
+[https://www.uniprot.org/uniprot/PSTS_ECOLI PSTS_ECOLI] Part of the ABC transporter complex PstSACB involved in phosphate import.
 == 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/qu/1qul_consurf.spt"</scriptWhenChecked>
+     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/qu/1qul_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/chain_selection.php?pdb_ID=2ata ConSurf].
+</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=1qul ConSurf].
 <div style="clear:both"></div>
-<div style="background-color:#fffaf0;">
-== Publication Abstract from PubMed ==
-Electrostatic interactions are among the key forces determining the structure and function of proteins. These are exemplified in the liganded form of the receptor, a phosphate binding protein from Escherichia coli. The phosphate, completely dehydrated and buried in the receptor, is bound by 12 hydrogen bonds as well as a salt link with Arg 135. We have modulated the ionic attraction while preserving the hydrogen bonds by mutating Asp 137, also salt linked to Arg 135, to Asn, Gly or Thr. High-resolution crystallographic analysis revealed that Gly and Thr (but not Asn) mutant proteins have incorporated a more electronegative Cl- in place of the Asp carboxylate. That no dramatic effect on phosphate affinity was produced by these ionic perturbations indicates a major role for hydrogen bonds and other local dipoles in the binding and charge stabilization of ionic ligands.
-Modulation of a salt link does not affect binding of phosphate to its specific active transport receptor.,Yao N, Ledvina PS, Choudhary A, Quiocho FA Biochemistry. 1996 Feb 20;35(7):2079-85. PMID:8652549<ref>PMID:8652549</ref>
-From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-</div>
 ==See Also==
 *[[Phosphate-binding protein|Phosphate-binding protein]]
-== References ==
-<references/>
 __TOC__
 </StructureSection>
 [[Category: Escherichia coli]]
-[[Category: Choudhary, A]]
+[[Category: Large Structures]]
-[[Category: Ledvina, P S]]
+[[Category: Choudhary A]]
-[[Category: Quiocho, F A]]
+[[Category: Ledvina PS]]
-[[Category: Yao, N]]
+[[Category: Quiocho FA]]
-[[Category: Binding protein]]
+[[Category: Yao N]]
-[[Category: Phosphate transport]]