1PFR

RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 BETA CHAIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Work: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of reduced protein R2 of ribonucleotide reductase: the structural basis for oxygen activation at a dinuclear iron site.

Logan, D.T.Su, X.D.Aberg, A.Regnstrom, K.Hajdu, J.Eklund, H.Nordlund, P.

(1996) Structure 4: 1053-1064

  • DOI: 10.1016/s0969-2126(96)00112-8
  • Primary Citation of Related Structures:  
    1PFR, 1XIK

  • PubMed Abstract: 
  • Ribonucleotide reductases (RNRs) catalyze the formation of the deoxyribonucleotides that are essential for DNA synthesis. The R2 subunit of Escherichia coli RNR is a homodimer containing one dinuclear iron centre per monomer. A tyrosyl radical is essential for catalysis, and is formed via a reaction in which the reduced, diferrous form of the iron centre activates dioxygen ...

    Ribonucleotide reductases (RNRs) catalyze the formation of the deoxyribonucleotides that are essential for DNA synthesis. The R2 subunit of Escherichia coli RNR is a homodimer containing one dinuclear iron centre per monomer. A tyrosyl radical is essential for catalysis, and is formed via a reaction in which the reduced, diferrous form of the iron centre activates dioxygen. To help understand the mechanism of oxygen activation, we examined the structure of the diferrous form of R2.


    Related Citations: 
    • Structure and Function of the Escherichia Coli Ribonucleotide Reductase Protein R2
      Nordlund, P., Eklund, H.
      (1993) J Mol Biol 232: 123

    Organizational Affiliation

    Department of Molecular Biology University of Stockholm S-106 91 Stockholm Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN R2 OF RIBONUCLEOTIDE REDUCTASEA, B340Escherichia coliMutation(s): 1 
EC: 1.17.4.1
UniProt
Find proteins for P69924 (Escherichia coli (strain K12))
Explore P69924 
Go to UniProtKB:  P69924
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Work: 0.179 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.3α = 90
b = 85.5β = 90
c = 115.7γ = 90
Software Package:
Software NamePurpose
AMoREphasing
TNTrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-03-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance