1G19

STRUCTURE OF RECA PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

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: 4964-4973

  • Primary Citation of Related Structures:  
  • Also Cited By: 4PTL, 4PSV, 4PSK, 4PSA, 4PR0, 4PQY, 4PQR, 4PQF, 4PPQ, 4PPN, 4PPG, 4PPF, 4POA, 4PO9, 4PO8, 4PO1, 4OQF, 2OFO, 2OES, 2OEP, 2OE2, 2ODW, 2ODN, 2G88, 1UBF, 1MO5, 1MO4

  • PubMed Abstract: 
  • Sequencing of the complete genome of Mycobacterium tuberculosis, combined with the rapidly increasing need to improve tuberculosis management through better drugs and vaccines, has initiated extensive research on several key proteins from the pathoge ...

    Sequencing of the complete genome of Mycobacterium tuberculosis, combined with the rapidly increasing need to improve tuberculosis management through better drugs and vaccines, has initiated extensive research on several key proteins from the pathogen. RecA, a ubiquitous multifunctional protein, is a key component of the processes of homologous genetic recombination and DNA repair. Structural knowledge of MtRecA is imperative for a full understanding of both these activities and any ensuing application. The crystal structure of MtRecA, presented here, has six molecules in the unit cell forming a 6(1) helical filament with a deep groove capable of binding DNA. The observed weakening in the higher order aggregation of filaments into bundles may have implications for recombination in mycobacteria. The structure of the complex reveals the atomic interactions of ADP-AlF(4), an ATP analogue, with the P-loop-containing binding pocket. The structures explain reduced levels of interactions of MtRecA with ATP, despite sharing the same fold, topology and high sequence similarity with EcRecA. The formation of a helical filament with a deep groove appears to be an inherent property of MtRecA. The histidine in loop L1 appears to be positioned appropriately for DNA interaction.


    Related Citations: 
    • Functional Characterization of the Precursor and Spliced Forms of Reca Protein of Mycobacterium Tuberculosis
      Kumar, R.A.,Vaze, M.B.,Chandra, N.R.,Vijayan, M.,Muniyappa, K.
      (1996) Biochemistry 35: 1793


    Organizational Affiliation

    Molecular Biophysics Unit, Department of Biochemistry and Bioinformatics Centre, Indian Institute of Science, Bangalore 560 012, India.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RECA PROTEIN
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: 3 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.217 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 108.072α = 90.00
b = 108.072β = 90.00
c = 72.783γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
X-PLORrefinement
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-05-09
    Type: Other
  • Version 1.4: 2018-04-04
    Type: Data collection