2khk

From Proteopedia

(Difference between revisions)

Revision as of 07:11, 10 September 2015

NMR solution structure of the b30-82 domain of subunit b of Escherichia coli F1FO ATP synthase

Structural highlights

2khk is a 1 chain structure with sequence from Ecoli. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[ATPF_ECOLI] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation (By similarity).^[1] Component of the F(0) channel, it forms part of the peripheral stalk, linking F(1) to F(0) (By similarity).^[2]

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

Subunit b, the peripheral stalk of bacterial F(1)F(o) ATP synthases, is composed of a membrane-spanning and a soluble part. The soluble part is divided into tether, dimerization, and delta-binding domains. The first solution structure of b30-82, including the tether region and part of the dimerization domain, has been solved by nuclear magnetic resonance, revealing an alpha-helix between residues 39 and 72. In the solution structure, b30-82 has a length of 48.07 A. The surface charge distribution of b30-82 shows one side with a hydrophobic surface pattern, formed by alanine residues. Alanine residues 61, 68, 70, and 72 were replaced by single cysteines in the soluble part of subunit b, b22-156. The cysteines at positions 61, 68, and 72 showed disulfide formation. In contrast, no cross-link could be formed for the A70C mutant. The patterns of disulfide bonding, together with the circular dichroism spectroscopy data, are indicative of an adjacent arrangement of residues 61, 68, and 72 in both alpha-helices in b22-156.

Solution structure, determined by nuclear magnetic resonance, of the b30-82 domain of subunit b of Escherichia coli F1Fo ATP synthase.,Priya R, Biukovic G, Gayen S, Vivekanandan S, Gruber G J Bacteriol. 2009 Dec;191(24):7538-44. Epub 2009 Oct 9. PMID:19820091^[3]

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

References

↑ McCormick KA, Cain BD. Targeted mutagenesis of the b subunit of F1F0 ATP synthase in Escherichia coli: Glu-77 through Gln-85. J Bacteriol. 1991 Nov;173(22):7240-8. PMID:1682301
↑ McCormick KA, Cain BD. Targeted mutagenesis of the b subunit of F1F0 ATP synthase in Escherichia coli: Glu-77 through Gln-85. J Bacteriol. 1991 Nov;173(22):7240-8. PMID:1682301
↑ Priya R, Biukovic G, Gayen S, Vivekanandan S, Gruber G. Solution structure, determined by nuclear magnetic resonance, of the b30-82 domain of subunit b of Escherichia coli F1Fo ATP synthase. J Bacteriol. 2009 Dec;191(24):7538-44. Epub 2009 Oct 9. PMID:19820091 doi:10.1128/JB.00540-09

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2khk"

@@ Line 2: / Line 2: @@
 <StructureSection load='2khk' size='340' side='right' caption='[[2khk]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2khk]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KHK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2KHK FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2khk]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KHK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2KHK 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=2khk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2khk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2khk RCSB], [http://www.ebi.ac.uk/pdbsum/2khk PDBsum]</span></td></tr>
+</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=2khk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2khk OCA], [http://pdbe.org/2khk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2khk RCSB], [http://www.ebi.ac.uk/pdbsum/2khk PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 25: / Line 25: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2khk" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 32: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Escherichia coli]]
+[[Category: Ecoli]]
 [[Category: Biukovic, G]]
 [[Category: Gayen, S]]

2khk

From Proteopedia

Revision as of 07:11, 10 September 2015

NMR solution structure of the b30-82 domain of subunit b of Escherichia coli F1FO ATP synthase

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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