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2k74

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Revision as of 11:06, 18 July 2018

Solution NMR structure of DsbB-ubiquinone complex

Structural highlights

2k74 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.
Ligands:
Related:	2hi7, 2k73
Gene:	dsbB, roxB, ycgA (ECOLI)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[DSBB_ECOLI] Required for disulfide bond formation in some periplasmic proteins such as PhoA or OmpA. Acts by oxidizing the DsbA protein.^[1] ^[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

We describe the NMR structure of DsbB, a polytopic helical membrane protein. DsbB, a bacterial cytoplasmic membrane protein, plays a key role in disulfide bond formation. It reoxidizes DsbA, the periplasmic protein disulfide oxidant, using the oxidizing power of membrane-embedded quinones. We determined the structure of an interloop disulfide bond form of DsbB, an intermediate in catalysis. Analysis of the structure and interactions with substrates DsbA and quinone reveals functionally relevant changes induced by these substrates. Analysis of the structure, dynamics measurements, and NMR chemical shifts around the interloop disulfide bond suggest how electron movement from DsbA to quinone through DsbB is regulated and facilitated. Our results demonstrate the extraordinary utility of NMR for functional characterization of polytopic integral membrane proteins and provide insights into the mechanism of DsbB catalysis.

NMR solution structure of the integral membrane enzyme DsbB: functional insights into DsbB-catalyzed disulfide bond formation.,Zhou Y, Cierpicki T, Jimenez RH, Lukasik SM, Ellena JF, Cafiso DS, Kadokura H, Beckwith J, Bushweller JH Mol Cell. 2008 Sep 26;31(6):896-908. PMID:18922471^[3]

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

References

↑ Bardwell JC, Lee JO, Jander G, Martin N, Belin D, Beckwith J. A pathway for disulfide bond formation in vivo. Proc Natl Acad Sci U S A. 1993 Feb 1;90(3):1038-42. PMID:8430071
↑ Missiakas D, Georgopoulos C, Raina S. Identification and characterization of the Escherichia coli gene dsbB, whose product is involved in the formation of disulfide bonds in vivo. Proc Natl Acad Sci U S A. 1993 Aug 1;90(15):7084-8. PMID:7688471
↑ Zhou Y, Cierpicki T, Jimenez RH, Lukasik SM, Ellena JF, Cafiso DS, Kadokura H, Beckwith J, Bushweller JH. NMR solution structure of the integral membrane enzyme DsbB: functional insights into DsbB-catalyzed disulfide bond formation. Mol Cell. 2008 Sep 26;31(6):896-908. PMID:18922471 doi:10.1016/j.molcel.2008.08.028

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/2k74"

@@ Line 1: / Line 1: @@
 ==Solution NMR structure of DsbB-ubiquinone complex==
 <StructureSection load='2k74' size='340' side='right' caption='[[2k74]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hi7|2hi7]], [[2k73|2k73]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dsbB, roxB, ycgA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</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=2k74 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k74 OCA], [http://pdbe.org/2k74 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2k74 RCSB], [http://www.ebi.ac.uk/pdbsum/2k74 PDBsum]</span></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=2k74 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k74 OCA], [http://pdbe.org/2k74 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2k74 RCSB], [http://www.ebi.ac.uk/pdbsum/2k74 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2k74 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k7/2k74_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k7/2k74_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2k74

From Proteopedia

Revision as of 11:06, 18 July 2018

Solution NMR structure of DsbB-ubiquinone complex

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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