Macromolecule Content

• Total Structure Weight: 9079.34 
• Atom Count: 637 
• Residue Count: 82 
• Unique protein chains: 1

1FOV

GLUTAREDOXIN 3 FROM ESCHERICHIA COLI IN THE FULLY OXIDIZED FORM

• DOI: 10.2210/pdb1FOV/pdb
• BMRB: 4850

• Classification: ELECTRON TRANSPORT
• Organism(s): Escherichia coli (strain K12)
• Expression System: Escherichia coli


• Deposited: 2000-08-29 Released: 2000-10-26 
• Deposition Author(s): Nordstrand, K., Sandstrom, A., Aslund, F., Holmgren, A., Otting, G., Berndt, K.D.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

NMR structure of oxidized glutaredoxin 3 from Escherichia coli.

Nordstrand, K., Sandstrom, A., Aslund, F., Holmgren, A., Otting, G., Berndt, K.D.

(2000) J.Mol.Biol. 303: 423-432

• PubMed: 11031118 
• DOI: 10.1006/jmbi.2000.4145


• PubMed Abstract: 
  

A high precision NMR structure of oxidized glutaredoxin 3 [C65Y] from Escherichia coli has been determined. The conformation of the active site including the disulphide bridge is highly similar to those in glutaredoxins from pig liver and T4 phage. A comparison with the previously determined structure of glutaredoxin 3 [C14S, C65Y] in a complex with glutathione reveals conformational changes between the free and substrate-bound form which includes the sidechain of the conserved, active site tyrosine residue. In the oxidized form this tyrosine is solvent exposed, while it adopts a less exposed conformation, stabilized by hydrogen bonds, in the mixed disulfide with glutathione. The structures further suggest that the formation of a covalent linkage between glutathione and glutaredoxin 3 is necessary in order to induce these structural changes upon binding of the glutathione peptide. This could explain the observed low affinity of glutaredoxins for S-blocked glutathione analogues, in spite of the fact that glutaredoxins are highly specific reductants of glutathione mixed disulfides.

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Related Citations: 

• NMR structure of Escherichia coli Glutaredoxin 3 - glutathione mixed disulfide complex: Implications for the enzymatic mechanism
  Nordstrand, K.,Aslund, F.,Holmgren, A.,Otting, G.,Berndt, K.D.
  (1999) J.Mol.Biol. 286: 541




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Organizational Affiliation: 

Center for Structural Biochemistry Karolinska Institutet, Huddinge, S-141 57, Sweden.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
GLUTAREDOXIN 3	A	82	Escherichia coli (strain K12)	Mutation(s): 0  Gene Names: grxC (yibM)
Find proteins for P0AC62 (Escherichia coli (strain K12)) Go to UniProtKB:  P0AC62

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: target function 
• Olderado: 1FOV Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-08-29 
• Released Date: 2000-10-26 
• Deposition Author(s): Nordstrand, K., Sandstrom, A., Aslund, F., Holmgren, A., Otting, G., Berndt, K.D.

Revision History 

• Version 1.0: 2000-10-26
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance