This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1a0o

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

CHEY-BINDING DOMAIN OF CHEA IN COMPLEX WITH CHEY

Structural highlights

1a0o is a 8 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.95Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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.^[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

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.

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^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Paul K, Nieto V, Carlquist WC, Blair DF, Harshey RM. The c-di-GMP binding protein YcgR controls flagellar motor direction and speed to affect chemotaxis by a "backstop brake" mechanism. Mol Cell. 2010 Apr 9;38(1):128-39. doi: 10.1016/j.molcel.2010.03.001. Epub 2010, Mar 25. PMID:20346719 doi:10.1016/j.molcel.2010.03.001
↑ Welch M, Chinardet N, Mourey L, Birck C, Samama JP. Structure of the CheY-binding domain of histidine kinase CheA in complex with CheY. Nat Struct Biol. 1998 Jan;5(1):25-9. PMID:9437425

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1a0o"

@@ Line 1: / Line 1: @@
 ==CHEY-BINDING DOMAIN OF CHEA IN COMPLEX WITH CHEY==
-<StructureSection load='1a0o' size='340' side='right' caption='[[1a0o]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
+<StructureSection load='1a0o' size='340' side='right'caption='[[1a0o]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1a0o]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. 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 [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1A0O FirstGlance]. <br>
+<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>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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]] 2.95&#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=1a0o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a0o OCA], [http://pdbe.org/1a0o PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1a0o RCSB], [http://www.ebi.ac.uk/pdbsum/1a0o PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1a0o ProSAT]</span></td></tr>
+<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>
+<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 ==
-[[http://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>  [[http://www.uniprot.org/uniprot/CHEA_ECOLI CHEA_ECOLI]] Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. CheA is autophosphorylated; it can transfer its phosphate group to either CheB or CheY.
+[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>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a0/1a0o_consurf.spt"</scriptWhenChecked>
+    <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>
@@ Line 32: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Bacillus coli migula 1895]]
+[[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: Chemotaxis]]
-[[Category: Histidine kinase]]
-[[Category: Response regulator]]
-[[Category: Signal transduction]]
-[[Category: Two-component system]]

1a0o

From Proteopedia

Current revision

CHEY-BINDING DOMAIN OF CHEA IN COMPLEX WITH CHEY

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox