1cyw: Difference between revisions

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==QUINOL OXIDASE (PERIPLASMIC FRAGMENT OF SUBUNIT II) (CYOA)==
==QUINOL OXIDASE (PERIPLASMIC FRAGMENT OF SUBUNIT II) (CYOA)==
<StructureSection load='1cyw' size='340' side='right' caption='[[1cyw]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='1cyw' size='340' side='right'caption='[[1cyw]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1cyw]] is a 1 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=1CYW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1CYW FirstGlance]. <br>
<table><tr><td colspan='2'>[[1cyw]] 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=1CYW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CYW FirstGlance]. <br>
</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=1cyw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cyw OCA], [http://pdbe.org/1cyw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1cyw RCSB], [http://www.ebi.ac.uk/pdbsum/1cyw PDBsum]</span></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]] 2.5&#8491;</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=1cyw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cyw OCA], [https://pdbe.org/1cyw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cyw RCSB], [https://www.ebi.ac.uk/pdbsum/1cyw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cyw ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/CYOA_ECOLI CYOA_ECOLI]] Cytochrome bo(3) ubiquinol terminal oxidase is the component of the aerobic respiratory chain of E.coli that predominates when cells are grown at high aeration. Has proton pump activity across the membrane in addition to electron transfer, pumping 2 protons/electron.<ref>PMID:6308657</ref> <ref>PMID:19542282</ref> <ref>PMID:22843529</ref>
[https://www.uniprot.org/uniprot/CYOA_ECOLI CYOA_ECOLI] Cytochrome bo(3) ubiquinol terminal oxidase is the component of the aerobic respiratory chain of E.coli that predominates when cells are grown at high aeration. Has proton pump activity across the membrane in addition to electron transfer, pumping 2 protons/electron.<ref>PMID:6308657</ref> <ref>PMID:19542282</ref> <ref>PMID:22843529</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cy/1cyw_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cy/1cyw_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </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=1cyw ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cytochrome oxidase is a membrane protein complex that catalyzes reduction of molecular oxygen to water and utilizes the free energy of this reaction to generate a transmembrane proton gradient during respiration. The electron entry site in subunit II is a mixed-valence dinuclear copper center in enzymes that oxidize cytochrome c. This center has been lost during the evolution of the quinoloxidizing branch of cytochrome oxidases but can be restored by engineering. Herein we describe the crystal structures of the periplasmic fragment from the wild-type subunit II (CyoA) of Escherichia coli quinol oxidase at 2.5-A resolution and of the mutant with the engineered dinuclear copper center (purple CyoA) at 2.3-A resolution. CyoA is folded as an 11-stranded mostly antiparallel beta-sandwich followed by three alpha-helices. The dinuclear copper center is located at the loops between strands beta 5-beta 6 and beta 9-beta 10. The two coppers are at a 2.5-A distance and symmetrically coordinated to the main ligands that are two bridging cysteines and two terminal histidines. The residues that are distinct in cytochrome c and quinol oxidases are around the dinuclear copper center. Structural comparison suggests a common ancestry for subunit II of cytochrome oxidase and blue copper-binding proteins.
Crystal structure of the membrane-exposed domain from a respiratory quinol oxidase complex with an engineered dinuclear copper center.,Wilmanns M, Lappalainen P, Kelly M, Sauer-Eriksson E, Saraste M Proc Natl Acad Sci U S A. 1995 Dec 19;92(26):11955-9. PMID:8618822<ref>PMID:8618822</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1cyw" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Escherichia coli]]
[[Category: Kelly, M]]
[[Category: Large Structures]]
[[Category: Lappalainen, P]]
[[Category: Kelly M]]
[[Category: Saraste, M]]
[[Category: Lappalainen P]]
[[Category: Sauer-Eriksson, E]]
[[Category: Saraste M]]
[[Category: Wilmanns, M]]
[[Category: Sauer-Eriksson E]]
[[Category: Electron transport]]
[[Category: Wilmanns M]]

Latest revision as of 09:46, 7 February 2024

QUINOL OXIDASE (PERIPLASMIC FRAGMENT OF SUBUNIT II) (CYOA)QUINOL OXIDASE (PERIPLASMIC FRAGMENT OF SUBUNIT II) (CYOA)

Structural highlights

1cyw is a 1 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 2.5Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CYOA_ECOLI Cytochrome bo(3) ubiquinol terminal oxidase is the component of the aerobic respiratory chain of E.coli that predominates when cells are grown at high aeration. Has proton pump activity across the membrane in addition to electron transfer, pumping 2 protons/electron.[1] [2] [3]

Evolutionary Conservation

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

References

  1. ↑ Matsushita K, Patel L, Gennis RB, Kaback HR. Reconstitution of active transport in proteoliposomes containing cytochrome o oxidase and lac carrier protein purified from Escherichia coli. Proc Natl Acad Sci U S A. 1983 Aug;80(16):4889-93. PMID:6308657
  2. ↑ Bekker M, de Vries S, Ter Beek A, Hellingwerf KJ, de Mattos MJ. Respiration of Escherichia coli can be fully uncoupled via the nonelectrogenic terminal cytochrome bd-II oxidase. J Bacteriol. 2009 Sep;191(17):5510-7. doi: 10.1128/JB.00562-09. Epub 2009 Jun 19. PMID:19542282 doi:http://dx.doi.org/10.1128/JB.00562-09
  3. ↑ Sharma P, Hellingwerf KJ, de Mattos MJ, Bekker M. Uncoupling of substrate-level phosphorylation in Escherichia coli during glucose-limited growth. Appl Environ Microbiol. 2012 Oct;78(19):6908-13. doi: 10.1128/AEM.01507-12. Epub , 2012 Jul 27. PMID:22843529 doi:http://dx.doi.org/10.1128/AEM.01507-12

1cyw, resolution 2.50Å

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