1a0o: Difference between revisions

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[[Image:1a0o.png|left|200px]]


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==CHEY-BINDING DOMAIN OF CHEA IN COMPLEX WITH CHEY==
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<StructureSection load='1a0o' size='340' side='right'caption='[[1a0o]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
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== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1a0o]] is a 8 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=1A0O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1A0O 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]] 2.95&#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=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
{{STRUCTURE_1a0o|  PDB=1a0o  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1a0o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a0o OCA], [https://pdbe.org/1a0o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1a0o RCSB], [https://www.ebi.ac.uk/pdbsum/1a0o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1a0o ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CHEY_ECOLI CHEY_ECOLI] Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. In its active (phosphorylated or acetylated) form, CheY exhibits enhanced binding to a switch component, FliM, at the flagellar motor which induces a change from counterclockwise to clockwise flagellar rotation. Overexpression of CheY in association with MotA and MotB improves motility of a ycgR disruption, suggesting there is an interaction (direct or indirect) between the c-di-GMP-binding flagellar brake protein and the flagellar stator.<ref>PMID:20346719</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a0/1a0o_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=1a0o ConSurf].
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== Publication Abstract from PubMed ==
Bacterial adaptation to the environment is accomplished through the coordinated activation of specific sensory receptors and signal processing proteins. Among the best characterized of these pathways are those which employ the two-component paradigm. In these systems, signal transmission is mediated by Mg(2+)-dependent phospho-relay reactions between histidine auto-kinases and phospho-accepting receiver domains in response-regulator proteins. Although this mechanism of activation is common to all response-regulators, detrimental cross-talk between different two-component pathways within the same cell is minimized through the use of specific recognition domains. Here, we report the crystal structure, at 2.95 A resolution, of the response regulator of bacterial chemotaxis, CheY, bound to the recognition domain from its cognate histidine kinase, CheA. The structure suggests that molecular recognition, in this low affinity complex (KD = 2 microM), may also contribute to the mechanism of CheY activation.


===CHEY-BINDING DOMAIN OF CHEA IN COMPLEX WITH CHEY===
Structure of the CheY-binding domain of histidine kinase CheA in complex with CheY.,Welch M, Chinardet N, Mourey L, Birck C, Samama JP Nat Struct Biol. 1998 Jan;5(1):25-9. PMID:9437425<ref>PMID:9437425</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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(as it appears on PubMed at http://www.pubmed.gov), where 9437425 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_9437425}}
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</StructureSection>
==About this Structure==
1A0O is a 8 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=1A0O OCA].
 
==Reference==
<ref group="xtra">PMID:9437425</ref><references group="xtra"/>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Birck, C.]]
[[Category: Large Structures]]
[[Category: Chinardet, N.]]
[[Category: Birck C]]
[[Category: Mourey, L.]]
[[Category: Chinardet N]]
[[Category: Samama, J P.]]
[[Category: Mourey L]]
[[Category: Welch, M.]]
[[Category: Samama JP]]
[[Category: Bacterial chemotaxis]]
[[Category: Welch M]]
[[Category: Histidine kinase]]
[[Category: Response regulator]]
[[Category: Signal transduction]]
[[Category: Two-component system]]
 
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