4U3E

Anaerobic ribonucleotide reductase

  • Classification: OXIDOREDUCTASE
  • Organism(s): Thermotoga maritima
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2014-07-20 Released: 2014-09-03 
  • Deposition Author(s): Funk, M.A., Drennan, C.L.
  • Funding Organization(s): National Science Foundation (NSF, United States), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), ASTAR

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.171 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The class III ribonucleotide reductase from Neisseria bacilliformis can utilize thioredoxin as a reductant.

Wei, Y.Funk, M.A.Rosado, L.A.Baek, J.Drennan, C.L.Stubbe, J.

(2014) Proc Natl Acad Sci U S A 111: E3756-E3765

  • DOI: 10.1073/pnas.1414396111
  • Primary Citation of Related Structures:  
    4U3E

  • PubMed Abstract: 
  • The class III anaerobic ribonucleotide reductases (RNRs) studied to date couple the reduction of ribonucleotides to deoxynucleotides with the oxidation of formate to CO2. Here we report the cloning and heterologous expression of the Neisseria bacilliformis class III RNR and show that it can catalyze nucleotide reduction using the ubiquitous thioredoxin/thioredoxin reductase/NADPH system ...

    The class III anaerobic ribonucleotide reductases (RNRs) studied to date couple the reduction of ribonucleotides to deoxynucleotides with the oxidation of formate to CO2. Here we report the cloning and heterologous expression of the Neisseria bacilliformis class III RNR and show that it can catalyze nucleotide reduction using the ubiquitous thioredoxin/thioredoxin reductase/NADPH system. We present a structural model based on a crystal structure of the homologous Thermotoga maritima class III RNR, showing its architecture and the position of conserved residues in the active site. Phylogenetic studies suggest that this form of class III RNR is present in bacteria and archaea that carry out diverse types of anaerobic metabolism.


    Organizational Affiliation

    Departments of Chemistry and Biology, and yifwei@mit.edu cdrennan@mit.edu stubbe@mit.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ribonucleoside triphosphate reductase AB671Thermotoga maritimaMutation(s): 0 
Gene Names: TM_0385THEMA_02795Tmari_0383
EC: 1.17.4.2
Find proteins for Q9WYL6 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Explore Q9WYL6 
Go to UniProtKB:  Q9WYL6
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Free: 0.200 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.171 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.313α = 90
b = 98.768β = 111.72
c = 86.556γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United States0645960
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM29595
ASTARSingapore--

Revision History  (Full details and data files)

  • Version 1.0: 2014-09-03
    Type: Initial release
  • Version 1.1: 2014-10-01
    Changes: Database references
  • Version 1.2: 2017-09-27
    Changes: Author supporting evidence, Database references, Derived calculations, Other, Source and taxonomy
  • Version 1.3: 2019-11-27
    Changes: Author supporting evidence