1RQ2

MYCOBACTERIUM TUBERCULOSIS FTSZ IN COMPLEX WITH CITRATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of Mycobacterium tuberculosis FtsZ reveals unexpected, G protein-like conformational switches.

Leung, A.K.Lucile White, E.Ross, L.J.Reynolds, R.C.DeVito, J.A.Borhani, D.W.

(2004) J.Mol.Biol. 342: 953-970

  • DOI: 10.1016/j.jmb.2004.07.061
  • Primary Citation of Related Structures:  1RLU, 1RQ7

  • PubMed Abstract: 
  • We report three crystal structures of the Mycobacterium tuberculosis cell division protein FtsZ, as the citrate, GDP, and GTPgammaS complexes, determined at 1.89, 2.60, and 2.08A resolution. MtbFtsZ crystallized as a tight, laterally oriented dimer d ...

    We report three crystal structures of the Mycobacterium tuberculosis cell division protein FtsZ, as the citrate, GDP, and GTPgammaS complexes, determined at 1.89, 2.60, and 2.08A resolution. MtbFtsZ crystallized as a tight, laterally oriented dimer distinct from the longitudinal polymer observed for alphabeta-tubulin. Mutational data on Escherichia coli FtsZ suggest that this dimer interface is important for proper protofilament and "Z-ring" assembly and function. An alpha-to-beta secondary structure conformational switch at the dimer interface is spatially analogous to, and has many of the hallmarks of, the Switch I conformational changes exhibited by G-proteins upon activation. The presence of a gamma-phosphate in the FtsZ active site modulates the conformation of the "tubulin" loop T3 (spatially analogous to the G-protein Switch II); T3 switching upon gamma-phosphate ligation is directly coupled to the alpha-to-beta switch by steric overlap. The dual conformational switches observed here for the first time in an FtsZ link GTP binding and hydrolysis to FtsZ (and tubulin) lateral assembly and Z-ring contraction, and they are suggestive of an underappreciated functional analogy between FtsZ, tubulin and G-proteins.


    Related Citations: 
    • 2-Alkoxycarbonylaminopyridines: inhibitors of Mycobacterium tuberculosis FtsZ
      White, E.L.,Suling, W.J.,Ross, L.J.,Seitz, L.E.,Reynolds, R.C.
      (2002) J.ANTIMICROB.CHEMOTHER. 50: 111
    • Crystallization of the Mycobacterium tuberculosis cell-division protein FtsZ
      Leung, A.K.W.,White, E.L.,Ross, L.J.,Borhani, D.W.
      (2000) Acta Crystallogr.,Sect.D 56: 1634
    • Slow polymerization of Mycobacterium tuberculosis FtsZ
      White, E.L.,Ross, L.J.,Reynolds, R.C.,Seitz, L.E.,Moore, G.D.,Borhani, D.W.
      (2000) J.Bacteriol. 182: 4028
    • Polymerization of C-Terminally Truncated Mycobacterium tuberculosis FtsZ Is Unlikely to be Physiologically Relevant
      Borhani, D.W.,White, E.L.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Drug Discovery Division, Southern Research Institute, Birmingham, AL 35205, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cell division protein ftsZ
A, B
382Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Gene Names: ftsZ
Find proteins for P9WN95 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  P9WN95
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

Download SDF File 
Download CCD File 
A
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CITIC50: 3000000 nM BINDINGMOAD
CITIC50: 3000000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.187 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 88.116α = 90.00
b = 88.116β = 90.00
c = 176.807γ = 120.00
Software Package:
Software NamePurpose
EPMRphasing
SCALAdata scaling
CCP4data scaling
TRUNCATEdata reduction
REFMACrefinement
X-PLORrefinement
MOSFLMdata reduction
TRUNCATEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-08-31
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description