4PSV

Mycobacterium tuberculosis RecA phosphate bound room temperature structure I-RT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.154 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural studies on Mycobacterium tuberculosis RecA: Molecular plasticity and interspecies variability

Chandran, A.V.Prabu, J.R.Nautiyal, A.Patil, K.N.Muniyappa, K.Vijayan, M.

(2015) J.Biosci. 40: 13-30

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Structures of crystals of Mycobacterium tuberculosis RecA, grown and analysed under different conditions, provide insights into hitherto underappreciated details of molecular structure and plasticity. In particular, they yield information on the inva ...

    Structures of crystals of Mycobacterium tuberculosis RecA, grown and analysed under different conditions, provide insights into hitherto underappreciated details of molecular structure and plasticity. In particular, they yield information on the invariant and variable features of the geometry of the P-loop, whose binding to ATP is central for all the biochemical activities of RecA. The strengths of interaction of the ligands with the P-loop reveal significant differences. This in turn affects the magnitude of the motion of the 'switch' residue, Gln195 in M. tuberculosis RecA, which triggers the transmission of ATP-mediated allosteric information to the DNA binding region. M. tuberculosis RecA is substantially rigid compared with its counterparts from M. smegmatis and E. coli, which exhibit concerted internal molecular mobility. The interspecies variability in the plasticity of the two mycobacterial proteins is particularly surprising as they have similar sequence and 3D structure. Details of the interactions of ligands with the protein, characterized in the structures reported here, could be useful for design of inhibitors against M. tuberculosis RecA.


    Related Citations: 
    • Crystallographic identification of an ordered C-terminal domain and a second nucleotide-binding site in RecA: new insights into allostery
      Krishna, R.,Manjunath, G.P.,Kumar, P.,Surolia, A.,Chandra, N.R.,Muniyappa, K.,Vijayan, M.
      (2006) Nucleic Acids Res. 34: 2186
    • Structural studies on MtRecA-nucleotide complexes: insights into DNA and nucleotide binding and the structural signature of NTP recognition
      Datta, S.,Ganesh, N.,Chandra, N.R.,Muniyappa, K.,Vijayan, M.
      (2003) Proteins 50: 474
    • Functionally important movements in RecA molecules and filaments: studies involving mutation and environmental changes
      Prabu, J.R.,Manjunath, G.P.,Chandra, N.R.,Muniyappa, K.,Vijayan, M.
      (2008) Acta Crystallogr.,Sect.D 64: 1146
    • Crystal structures of Mycobacterium smegmatis RecA and its nucleotide complexes
      Datta, S.,Krishna, R.,Ganesh, N.,Chandra, N.R.,Muniyappa, K.,Vijayan, M.
      (2003) J.Bacteriol. 185: 4280
    • Crystal structures of Mycobacterium tuberculosis RecA and its complex with ADP-AlF(4): implications for decreased ATPase activity and molecular aggregation
      Datta, S.,Prabu, M.M.,Vaze, M.B.,Ganesh, N.,Chandra, N.R.,Muniyappa, K.,Vijayan, M.
      (2000) Nucleic Acids Res. 28: 4964


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein RecA, 1st part, 2nd part
A
350Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: recA
Find proteins for P9WHJ3 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WHJ3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.154 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 108.416α = 90.00
b = 108.416β = 90.00
c = 72.748γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-03-18
    Type: Initial release
  • Version 1.1: 2017-08-16
    Type: Source and taxonomy