5MN7

S. aureus FtsZ 12-316 F138A GTP Closed form (3FCm)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

A Polymerization-Associated Structural Switch in FtsZ That Enables Treadmilling of Model Filaments.

Wagstaff, J.M.Tsim, M.Oliva, M.A.Garcia-Sanchez, A.Kureisaite-Ciziene, D.Andreu, J.M.Lowe, J.

(2017) MBio 8: --

  • DOI: 10.1128/mBio.00254-17
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Bacterial cell division in many organisms involves a constricting cytokinetic ring that is orchestrated by the tubulin-like protein FtsZ. FtsZ forms dynamic filaments close to the membrane at the site of division that have recently been shown to trea ...

    Bacterial cell division in many organisms involves a constricting cytokinetic ring that is orchestrated by the tubulin-like protein FtsZ. FtsZ forms dynamic filaments close to the membrane at the site of division that have recently been shown to treadmill around the division ring, guiding septal wall synthesis. Here, using X-ray crystallography of Staphylococcus aureus FtsZ (SaFtsZ), we reveal how an FtsZ can adopt two functionally distinct conformations, open and closed. The open form is found in SaFtsZ filaments formed in crystals and also in soluble filaments of Escherichia coli FtsZ as deduced by electron cryomicroscopy. The closed form is found within several crystal forms of two nonpolymerizing SaFtsZ mutants and corresponds to many previous FtsZ structures from other organisms. We argue that FtsZ's conformational switch is polymerization-associated, driven by the formation of the longitudinal intersubunit interfaces along the filament. We show that such a switch provides explanations for both how treadmilling may occur within a single-stranded filament and why filament assembly is cooperative.IMPORTANCE The FtsZ protein is a key molecule during bacterial cell division. FtsZ forms filaments that organize cell membrane constriction, as well as remodeling of the cell wall, to divide cells. FtsZ functions through nucleotide-driven filament dynamics that are poorly understood at the molecular level. In particular, mechanisms for cooperative assembly (nonlinear dependency on concentration) and treadmilling (preferential growth at one filament end and loss at the other) have remained elusive. Here, we show that most likely all FtsZ proteins have two distinct conformations, a "closed" form in monomeric FtsZ and an "open" form in filaments. The conformational switch that occurs upon polymerization explains cooperativity and, in concert with polymerization-dependent nucleotide hydrolysis, efficient treadmilling of FtsZ polymers.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Cambridge, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cell division protein FtsZ
A, B
305Staphylococcus aureusMutation(s): 1 
Gene Names: ftsZ
Find proteins for P0A031 (Staphylococcus aureus)
Go to UniProtKB:  P0A031
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GTP
Query on GTP

Download SDF File 
Download CCD File 
A, B
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.211 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 116.091α = 90.00
b = 130.015β = 90.00
c = 134.125γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHENIXrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomU105184326
Wellcome TrustUnited Kingdom095514/Z/11/Z

Revision History 

  • Version 1.0: 2017-01-11
    Type: Initial release
  • Version 1.1: 2017-02-01
    Type: Structure summary
  • Version 1.2: 2017-05-17
    Type: Database references
  • Version 1.3: 2017-09-13
    Type: Author supporting evidence
  • Version 1.4: 2018-01-24
    Type: Source and taxonomy