1H78

STRUCTURAL BASIS FOR ALLOSTERIC SUBSTRATE SPECIFICITY REGULATION IN CLASS III RIBONUCLEOTIDE REDUCTASES: NRDD IN COMPLEX WITH DCTP.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Structural Basis for Allosteric Substrate Specificty Regulation in Anaerobic Ribonucleotide Reductase

Larsson, K.-M.Andersson, J.Sjoeberg, B.-M.Nordlund, P.Logan, D.T.

(2001) Structure 9: 739

  • Primary Citation of Related Structures:  1H79, 1H7A, 1H7B

  • PubMed Abstract: 
  • The specificity of ribonucleotide reductases (RNRs) toward their four substrates is governed by the binding of deoxyribonucleoside triphosphates (dNTPs) to the allosteric specificity site. Similar patterns in the kinetics of allosteric regulation hav ...

    The specificity of ribonucleotide reductases (RNRs) toward their four substrates is governed by the binding of deoxyribonucleoside triphosphates (dNTPs) to the allosteric specificity site. Similar patterns in the kinetics of allosteric regulation have been a strong argument for a common evolutionary origin of the three otherwise widely divergent RNR classes. Recent structural information settled the case for divergent evolution; however, the structural basis for transmission of the allosteric signal is currently poorly understood. A comparative study of the conformational effects of the binding of different effectors has not yet been possible; in addition, only one RNR class has been studied.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, Stockholm University, S-106 91, Stockholm, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ANAEROBIC RIBONUCLEOTIDE-TRIPHOSPHATE REDUCTASE LARGE CHAIN
A
605Enterobacteria phage T4Gene Names: NRDD (49.1, 55.11/55.13, SUNY)
EC: 1.17.4.2
Find proteins for P07071 (Enterobacteria phage T4)
Go to UniProtKB:  P07071
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DCP
Query on DCP

Download SDF File 
Download CCD File 
A
2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE
C9 H16 N3 O13 P3
RGWHQCVHVJXOKC-SHYZEUOFSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.221 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 97.935α = 90.00
b = 97.935β = 90.00
c = 242.515γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
DENZOdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 2.0: 2018-01-17
    Type: Atomic model, Data collection