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1srx

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Revision as of 06:39, 10 September 2015

THREE-DIMENSIONAL STRUCTURE OF ESCHERICHIA COLI THIOREDOXIN-S2 TO 2.8 ANGSTROMS RESOLUTION

Structural highlights

1srx is a 1 chain structure with sequence from Escherichia coli (strain b). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[THIO_ECOLI] Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions.

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

The three-dimensional structure of the electron transport protein thioredoxin-S2 from E. coli has been determined from a 2.8 A resolution electron density map. The molecule is built up of a central core of three parallel and two antiparallel strands of pleated sheet surrounded by four helices. Thr residues involved in the active center 14-membered disulfide ring of thioredoxin form a protrusion between one of the helices and the middle strand of the pleated sheet. This region of the molecule, comprising two parallel strands joined by the protrusion and a helix, is structurally very similar to corresponding functionally important regions in the nucleotide-binding domains of flavodoxin and the dehydrogenases. The molecule has about 75% of the residues in well-defined secondary structures. The structure indicates that the carboxy-terminal third of the molecule forms an independent folding unit consisting of two strands of antiparallel pleated sheet and a terminal alpha-helix. This agress with the noncovalent reconstitution experiments from thioredoxin peptide fragments. Thioredoxin is an example of a protein with the active center located on a protrusion rather than in a cleft, thus demonstrating the existence of male proteins.

Three-dimensional structure of Escherichia coli thioredoxin-S2 to 2.8 A resolution.,Holmgren A, Soderberg BO, Eklund H, Branden CI Proc Natl Acad Sci U S A. 1975 Jun;72(6):2305-9. PMID:1094461^[1]

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

References

↑ Holmgren A, Soderberg BO, Eklund H, Branden CI. Three-dimensional structure of Escherichia coli thioredoxin-S2 to 2.8 A resolution. Proc Natl Acad Sci U S A. 1975 Jun;72(6):2305-9. PMID:1094461

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/1srx"

Categories: Soderberg, B O | Electron transport

@@ Line 2: / Line 2: @@
 <StructureSection load='1srx' size='340' side='right' caption='[[1srx]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1srx]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli_b Escherichia coli b]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SRX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1SRX FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1srx]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli_(strain_b) Escherichia coli (strain b)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SRX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1SRX 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=1srx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1srx OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1srx RCSB], [http://www.ebi.ac.uk/pdbsum/1srx 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=1srx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1srx OCA], [http://pdbe.org/1srx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1srx RCSB], [http://www.ebi.ac.uk/pdbsum/1srx 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 1srx" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 32: / Line 33: @@
 __TOC__
 </StructureSection>
-[[Category: Escherichia coli b]]
 [[Category: Soderberg, B O]]
 [[Category: Electron transport]]

1srx

From Proteopedia

Revision as of 06:39, 10 September 2015

THREE-DIMENSIONAL STRUCTURE OF ESCHERICHIA COLI THIOREDOXIN-S2 TO 2.8 ANGSTROMS RESOLUTION

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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