1UZR

Crystal Structure of the Class Ib Ribonucleotide Reductase R2F-2 subunit from Mycobacterium tuberculosis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.177 

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This is version 1.2 of the entry. See complete history


Literature

Crystal Structure of the Biologically Active Form of Class Ib Ribonucleotide Reductase Small Subunit from Mycobacterium Tuberculosis

Uppsten, M.Davis, J.Rubin, H.Uhlin, U.

(2004) FEBS Lett 569: 117

  • DOI: 10.1016/j.febslet.2004.05.059
  • Primary Citation of Related Structures:  
    1UZR

  • PubMed Abstract: 
  • Two nrdF genes of Mycobacterium tuberculosis code for different R2 subunits of the class Ib ribonucleotide reductase (RNR). The proteins are denoted R2F-1 and R2F-2 having 71% sequence identity. The R2F-2 subunit forms the biologically active RNR complex with the catalytic R1E-subunit ...

    Two nrdF genes of Mycobacterium tuberculosis code for different R2 subunits of the class Ib ribonucleotide reductase (RNR). The proteins are denoted R2F-1 and R2F-2 having 71% sequence identity. The R2F-2 subunit forms the biologically active RNR complex with the catalytic R1E-subunit. We present the structure of the reduced R2F-2 subunit to 2.2 A resolution. Comparison of the R2F-2 structure with a model of R2F-1 suggests that the important differences are located at the C-terminus. We found that within class Ib, the E-helix close to the iron diiron centre has two preferred conformations, which cannot be explained by the redox-state of the diiron centre. In the R2F-2 structure, we also could see a mobility of alphaE in between the two conformations.


    Organizational Affiliation

    Department of Molecular Biology, Swedish University of Agricultural Sciences, Uppsala Biomedical Center, P.O. Box 590, SE-751 24 Uppsala, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RIBONUCLEOTIDE REDUCTASE R2-2 SMALL SUBUNITA, B, C296Mycobacterium tuberculosisMutation(s): 0 
EC: 1.17.4.1
Find proteins for P9WH71 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WH71 
Go to UniProtKB:  P9WH71
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.177 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 161.492α = 90
b = 161.492β = 90
c = 115.53γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-07-08
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance