MtRuvA Form II

Experimental Data Snapshot

  • Resolution: 2.80 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.229 

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Crystallographic and modelling studies on Mycobacterium tuberculosis RuvA Additional role of RuvB-binding domain and inter species variability

Prabu, J.R.Thamotharan, S.Khanduja, J.S.Chandra, N.R.Muniyappa, K.Vijayan, M.

(2009) Biochim Biophys Acta 1794: 1001-1009

  • DOI: https://doi.org/10.1016/j.bbapap.2009.04.003
  • Primary Citation of Related Structures:  
    2ZTC, 2ZTD, 2ZTE

  • PubMed Abstract: 

    RuvA, along with RuvB, is involved in branch migration of heteroduplex DNA in homologous recombination. The structures of three new crystal forms of RuvA from Mycobacterium tuberculosis (MtRuvA) have been determined. The RuvB-binding domain is cleaved off in one of them. Detailed models of the complexes of octameric RuvA from different species with the Holliday junction have also been constructed. A thorough examination of the structures presented here and those reported earlier brings to light the hitherto unappreciated role of the RuvB-binding domain in determining inter-domain orientation and oligomerization. These structures also permit an exploration of the interspecies variability of structural features such as oligomerization and the conformation of the loop that carries the acidic pin, in terms of amino acid substitutions. These models emphasize the additional role of the RuvB-binding domain in Holliday junction binding. This role along with its role in oligomerization could have important biological implications.

  • Organizational Affiliation

    Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560 012, India.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Holliday junction ATP-dependent DNA helicase ruvA
A, B, C, D
212Mycobacterium tuberculosisMutation(s): 0 
Gene Names: ruvA
EC: 3.6.1
Find proteins for P9WGW3 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WGW3 
Go to UniProtKB:  P9WGW3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WGW3
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.80 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.229 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 131.2α = 90
b = 95.669β = 121.8
c = 77.209γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-05-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description