1CQH

HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN HUMAN THIOREDOXIN (C35A, C62A, C69A, C73A) MUTANT AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN REF-1 (RESIDUES 59-71 OF THE P50 SUBUNIT OF NFKB), NMR, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The solution structure of human thioredoxin complexed with its target from Ref-1 reveals peptide chain reversal.

Qin, J.Clore, G.M.Kennedy, W.P.Kuszewski, J.Gronenborn, A.M.

(1996) Structure 4: 613-620

  • Primary Citation of Related Structures:  1CQG

  • PubMed Abstract: 
  • Human thioredoxin (hTRX) is a 12 kDa cellular redox protein that has been shown to play an important role in the activation of a number of transcriptional and translational regulators via a thiol-redox mechanism. This activity may be direct or indire ...

    Human thioredoxin (hTRX) is a 12 kDa cellular redox protein that has been shown to play an important role in the activation of a number of transcriptional and translational regulators via a thiol-redox mechanism. This activity may be direct or indirect via another redox protein known as Ref-1. The structure of a complex of hTRX with a peptide comprising its target from the transcription factor NF kappa B has previously been solved. To further extend our knowledge of the recognition by and interaction of hTRX with its various targets, we have studied a complex between hTRX and a Ref-1 peptide. This complex represents a kinetically stable mixed disulfide intermediate along the reaction pathway.


    Related Citations: 
    • The High-Resolution Three-Dimensional Solution Structures of the Oxidized and Reduced States of Human Thioredoxin
      Qin, J.,Clore, G.M.,Gronenborn, A.M.
      (1994) Structure 2: 503
    • High-Resolution Three-Dimensional Structure of Reduced Recombinant Human Thioredoxin in Solution
      Forman-Kay, J.D.,Clore, G.M.,Wingfield, P.T.,Gronenborn, A.M.
      (1991) Biochemistry 30: 2685
    • Solution Structure of Human Thioredoxin in a Mixed Disulfide Intermediate Complex with its Target Peptide from the Transcription Factor NF Kappa B
      Qin, J.,Clore, G.M.,Kennedy, W.M.,Huth, J.R.,Gronenborn, A.M.
      (1995) Structure 3: 289


    Organizational Affiliation

    Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THIOREDOXIN
A
105Homo sapiensGene Names: TXN (TRDX, TRX, TRX1)
Find proteins for P10599 (Homo sapiens)
Go to Gene View: TXN
Go to UniProtKB:  P10599
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
REF-1 PEPTIDE
B
13Homo sapiensGene Names: APEX1 (APE, APE1, APEX, APX, HAP1, REF1)
EC: 3.1.-.-, 4.2.99.18
Find proteins for P27695 (Homo sapiens)
Go to Gene View: APEX1
Go to UniProtKB:  P27695
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-08-01
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance