3FVE

Crystal structure of diaminopimelate epimerase Mycobacterium tuberculosis DapF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the diaminopimelate epimerase DapF from Mycobacterium tuberculosis

Usha, V.Dover, L.G.Roper, D.I.Futterer, K.Besra, G.S.

(2009) Acta Crystallogr.,Sect.D 65: 383-387

  • DOI: 10.1107/S0907444909002522

  • PubMed Abstract: 
  • The meso (or D,L) isomer of diaminopimelic acid (DAP), a precursor of L-lysine, is a key component of the pentapeptide linker in bacterial peptidoglycan. While the peptidoglycan incorporated in the highly complex cell wall of the pathogen Mycobacteri ...

    The meso (or D,L) isomer of diaminopimelic acid (DAP), a precursor of L-lysine, is a key component of the pentapeptide linker in bacterial peptidoglycan. While the peptidoglycan incorporated in the highly complex cell wall of the pathogen Mycobacterium tuberculosis structurally resembles that of Escherichia coli, it is unique in that it can contain penicillin-resistant meso-DAP-->meso-DAP linkages. The interconversion of L,L-DAP and meso-DAP is catalysed by the DAP epimerase DapF, a gene product that is essential in M. tuberculosis. Here, the crystal structure of the ligand-free form of M. tuberculosis DapF (MtDapF) refined to a resolution of 2.6 A is reported. MtDapF shows small if distinct deviations in secondary structure from the two-domain alpha/beta-fold of the known structures of Haemophilus influenzae DapF and Bacillus anthracis DapF, which are in line with its low sequence identity (


    Organizational Affiliation

    School of Biosciences, University of Birmingham, Edgbaston, Birmingham, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Diaminopimelate epimerase
A
290Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Gene Names: dapF
EC: 5.1.1.7
Find proteins for P9WP19 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WP19
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
DTT
Query on DTT

Download SDF File 
Download CCD File 
A
2,3-DIHYDROXY-1,4-DITHIOBUTANE
1,4-DITHIOTHREITOL
C4 H10 O2 S2
VHJLVAABSRFDPM-IMJSIDKUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.224 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 183.640α = 90.00
b = 183.640β = 90.00
c = 45.210γ = 120.00
Software Package:
Software NamePurpose
ADSCdata collection
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-01-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance