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.

2zuq

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 06:57, 18 October 2018

Crystal structure of DsbB-Fab complex

Structural highlights

2zuq is a 6 chain structure with sequence from Ecoli and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2hi7, 2zup
Gene:	dsbB (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

In the Escherichia coli system catalysing oxidative protein folding, disulphide bonds are generated by the cooperation of DsbB and ubiquinone and transferred to substrate proteins through DsbA. The structures solved so far for different forms of DsbB lack the Cys104-Cys130 initial-state disulphide that is directly donated to DsbA. Here, we report the 3.4 A crystal structure of a DsbB-Fab complex, in which DsbB has this principal disulphide. Its comparison with the updated structure of the DsbB-DsbA complex as well as with the recently reported NMR structure of a DsbB variant having the rearranged Cys41-Cys130 disulphide illuminated conformational transitions of DsbB induced by the binding and release of DsbA. Mutational studies revealed that the membrane-parallel short alpha-helix of DsbB has a key function in physiological electron flow, presumably by controlling the positioning of the Cys130-containing loop. These findings demonstrate that DsbB has developed the elaborate conformational dynamism to oxidize DsbA for continuous protein disulphide bond formation in the cell.

Dynamic nature of disulphide bond formation catalysts revealed by crystal structures of DsbB.,Inaba K, Murakami S, Nakagawa A, Iida H, Kinjo M, Ito K, Suzuki M EMBO J. 2009 Mar 18;28(6):779-91. Epub 2009 Feb 12. PMID:19214188^[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
↑ Inaba K, Murakami S, Nakagawa A, Iida H, Kinjo M, Ito K, Suzuki M. Dynamic nature of disulphide bond formation catalysts revealed by crystal structures of DsbB. EMBO J. 2009 Mar 18;28(6):779-91. Epub 2009 Feb 12. PMID:19214188 doi:10.1038/emboj.2009.21

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/2zuq"

@@ Line 1: / Line 1: @@
 ==Crystal structure of DsbB-Fab complex==
 <StructureSection load='2zuq' size='340' side='right' caption='[[2zuq]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hi7|2hi7]], [[2zup|2zup]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">dsbB ([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=2zuq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zuq OCA], [http://pdbe.org/2zuq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zuq RCSB], [http://www.ebi.ac.uk/pdbsum/2zuq 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=2zuq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zuq OCA], [http://pdbe.org/2zuq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zuq RCSB], [http://www.ebi.ac.uk/pdbsum/2zuq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zuq 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/zu/2zuq_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zu/2zuq_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 31: / Line 32: @@
 ==See Also==
-*[[Monoclonal Antibody|Monoclonal Antibody]]
+*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
 *[[Protein disulfide oxidoreductase|Protein disulfide oxidoreductase]]
 == References ==

2zuq

From Proteopedia

Revision as of 06:57, 18 October 2018

Crystal structure of DsbB-Fab complex

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox