2NTN

Crystal structure of MabA-C60V/G139A/S144L


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Lack of dynamics in the MabA active site kills the enzyme activity: practical consequences for drug-design studies

Poncet-Montange, G.Ducasse-Cabanot, S.Quemard, A.Labesse, G.Cohen-Gonsaud, M.

(2007) ACTA CRYSTALLOGR.,SECT.D 63: 923-925

  • DOI: 10.1107/S0907444907024158

  • PubMed Abstract: 
  • The MabA protein from Mycobacterium tuberculosis is a validated drug target. Previous structural studies of this protein showed dynamic behaviour in the catalytic site and described motion between an open 'active' holo form (with NADP) and a closed ' ...

    The MabA protein from Mycobacterium tuberculosis is a validated drug target. Previous structural studies of this protein showed dynamic behaviour in the catalytic site and described motion between an open 'active' holo form (with NADP) and a closed 'inactive' apo form (without NADP). Here, a mutation (G139A) is reported that leads to complete protein inactivation and freezes the catalytic site into its closed form, even in the presence of the cofactor. This observation suggests a new way to develop anti-MabA drugs via protein stabilization of the 'inactive' form.


    Organizational Affiliation

    CNRS UMR5048, Centre de Biochimie Structurale, F-34090 Montpellier, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-oxoacyl-[acyl-carrier-protein] reductase
A, B
267Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 3 
Gene Names: fabG1 (mabA)
EC: 1.1.1.100
Find proteins for P9WGT3 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WGT3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.177 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 81.613α = 90.00
b = 117.285β = 121.90
c = 52.272γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-11-21
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Derived calculations, Version format compliance