Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 63.17 kDa 
• Atom Count: 4264 
• Modelled Residue Count: 522 
• Deposited Residue Count: 545 
• Unique protein chains: 1

4UXV

Cytoplasmic domain of bacterial cell division protein EzrA

• PDB DOI: 10.2210/pdb4UXV/pdb

• Classification: CELL CYCLE
• Organism(s): Bacillus subtilis subsp. subtilis str. 168
• Expression System: Escherichia coli B
• Mutation(s): No 


• Deposited: 2014-08-27 Released: 2014-10-22 
• Deposition Author(s): Cleverley, R.M., Barrett, J.R., Basle, A., Khai-Bui, N., Hewitt, L., Solovyova, A., Xu, Z., Daniela, R.A., Dixon, N.E., Harry, E.J., Oakley, A.J., Vollmer, W., Lewis, R.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.96 Å
• R-Value Free: 0.348 
• R-Value Work: 0.317 
• R-Value Observed: 0.320 

Literature

Structure and Function of a Spectrin-Like Regulator of Bacterial Cytokinesis.

Cleverley, R.M., Barrett, J.R., Basle, A., Bui, N.K., Hewitt, L., Solovyova, A., Xu, Z., Daniel, R.A., Dixon, N.E., Harry, E.J., Oakley, A.J., Vollmer, W., Lewis, R.J.

(2014) Nat Commun 5: 5421

• PubMed: 25403286 
• DOI: 10.1038/ncomms6421
• Primary Citation of Related Structures:  
  4UXV, 4UY3


• PubMed Abstract: 
  

Bacterial cell division is facilitated by a molecular machine--the divisome--that assembles at mid-cell in dividing cells. The formation of the cytokinetic Z-ring by the tubulin homologue FtsZ is regulated by several factors, including the divisome component EzrA. Here we describe the structure of the 60-kDa cytoplasmic domain of EzrA, which comprises five linear repeats of an unusual triple helical bundle. The EzrA structure is bent into a semicircle, providing the protein with the potential to interact at both N- and C-termini with adjacent membrane-bound divisome components. We also identify at least two binding sites for FtsZ on EzrA and map regions of EzrA that are responsible for regulating FtsZ assembly. The individual repeats, and their linear organization, are homologous to the spectrin proteins that connect actin filaments to the membrane in eukaryotes, and we thus propose that EzrA is the founding member of the bacterial spectrin family.

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Organizational Affiliation: 

Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SEPTATION RING FORMATION REGULATOR EZRA	A	545	Bacillus subtilis subsp. subtilis str. 168	Mutation(s): 0  Gene Names: ezrA, ytwP, BSU29610
UniProt
Find proteins for O34894 (Bacillus subtilis (strain 168)) Explore O34894  Go to UniProtKB:  O34894

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.96 Å
• R-Value Free: 0.348 
• R-Value Work: 0.317 
• R-Value Observed: 0.320 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 222.703	α = 90
b = 222.703	β = 90
c = 184.115	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-08-27 
• Released Date: 2014-10-22 
Deposition Author(s): Cleverley, R.M., Barrett, J.R., Basle, A., Khai-Bui, N., Hewitt, L., Solovyova, A., Xu, Z., Daniela, R.A., Dixon, N.E., Harry, E.J., Oakley, A.J., Vollmer, W., Lewis, R.J.

Revision History  

• Version 1.0: 2014-10-22
  Type: Initial release
  
• Version 1.1: 2014-12-03
  Changes: Database references