2ok2

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{{Seed}}
 
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[[Image:2ok2.png|left|200px]]
 
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==MutS C-terminal domain fused to Maltose Binding Protein==
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The line below this paragraph, containing "STRUCTURE_2ok2", creates the "Structure Box" on the page.
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<StructureSection load='2ok2' size='340' side='right'caption='[[2ok2]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2ok2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OK2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OK2 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900001:alpha-maltose'>PRD_900001</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_2ok2| PDB=2ok2 | SCENE= }}
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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=2ok2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ok2 OCA], [https://pdbe.org/2ok2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ok2 RCSB], [https://www.ebi.ac.uk/pdbsum/2ok2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ok2 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/MALE_ECOLI MALE_ECOLI] Involved in the high-affinity maltose membrane transport system MalEFGK. Initial receptor for the active transport of and chemotaxis toward maltooligosaccharides.
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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/ok/2ok2_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=2ok2 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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The Escherichia coli mispair-binding protein MutS forms dimers and tetramers in vitro, although the functional form in vivo is under debate. Here we demonstrate that the MutS tetramer is extended in solution using small angle x-ray scattering and the crystal structure of the C-terminal 34 amino acids of MutS containing the tetramer-forming domain fused to maltose-binding protein (MBP). Wild-type C-terminal MBP fusions formed tetramers and could bind MutS and MutS-MutL-DNA complexes. In contrast, D835R and R840E mutations predicted to disrupt tetrameric interactions only allowed dimerization of MBP. A chromosomal MutS truncation mutation eliminating the dimerization/tetramerization domain eliminated mismatch repair, whereas the tetramer-disrupting MutS D835R and R840E mutations only modestly affected MutS function. These results demonstrate that dimerization but not tetramerization of the MutS C terminus is essential for mismatch repair.
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===MutS C-terminal domain fused to Maltose Binding Protein===
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Escherichia coli MutS tetramerization domain structure reveals that stable dimers but not tetramers are essential for DNA mismatch repair in vivo.,Mendillo ML, Putnam CD, Kolodner RD J Biol Chem. 2007 Jun 1;282(22):16345-54. Epub 2007 Apr 10. PMID:17426027<ref>PMID:17426027</ref>
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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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The line below this paragraph, {{ABSTRACT_PUBMED_17426027}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 2ok2" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 17426027 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_17426027}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Escherichia coli K-12]]
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2OK2 is a 2 chains structure of sequences 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=2OK2 OCA].
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[[Category: Large Structures]]
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[[Category: Kolodner RD]]
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==Reference==
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[[Category: Mendillo ML]]
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<ref group="xtra">PMID:17426027</ref><references group="xtra"/>
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[[Category: Putnam CD]]
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[[Category: Escherichia coli]]
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[[Category: Kolodner, R D.]]
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[[Category: Mendillo, M L.]]
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[[Category: Putnam, C D.]]
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[[Category: Dna repair]]
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[[Category: Mismatch repair]]
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[[Category: Tetramerization]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 17:03:26 2009''
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Current revision

MutS C-terminal domain fused to Maltose Binding Protein

PDB ID 2ok2

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