1YR1

Structure of the major extracytoplasmic domain of the trans isomer of the bacterial cell division protein divib from geobacillus stearothermophilus


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 25 
  • Selection Criteria: lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Domain architecture and structure of the bacterial cell division protein DivIB.

Robson, S.A.King, G.F.

(2006) Proc.Natl.Acad.Sci.USA 103: 6700-6705

  • DOI: 10.1073/pnas.0601397103
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Bacterial cytokinesis requires the coordinated assembly of a complex of proteins, collectively known as the divisome, at the incipient division site. DivIB/FtsQ is a conserved component of the divisome in bacteria with cell walls, suggesting that it ...

    Bacterial cytokinesis requires the coordinated assembly of a complex of proteins, collectively known as the divisome, at the incipient division site. DivIB/FtsQ is a conserved component of the divisome in bacteria with cell walls, suggesting that it plays a role in synthesis and/or remodeling of septal peptidoglycan. We demonstrate that the extracytoplasmic region of DivIB comprises three discrete domains that we designate alpha, beta, and gamma from the N to C terminus. The alpha-domain is proximal to the cytoplasmic membrane and coincident with the polypeptide transport-associated domain that was proposed previously to function as a molecular chaperone. The beta-domain has a unique 3D fold, with no eukaryotic counterpart, and we show that it interconverts between two discrete conformations via cis-trans isomerization of a Tyr-Pro peptide bond. We propose that this isomerization might modulate protein-protein interactions of the flanking alpha- and gamma-domains. The C-terminal gamma-domain is unstructured in the absence of other divisomal proteins, but we show that it is critical for DivIB function.


    Related Citations: 
    • Cloning and expression of a Bacillus subtilis division initiation gene for which a homolog has not been identified in another organism
      Harry, E.J.,Wake, R.G.
      (1989) J.Bacteriol. 171: 6835
    • Membrane-bound division proteins DivIB and DivIC of Bacillus subtilis function solely through their external domains in both vegetative and sporulation division.
      Katis, V.L.,Wake, R.G.
      (1999) J.Bacteriol. 181: 2710
    • Nucleotide sequence and insertional inactivation of a Bacillus subtilis gene that affects cell division, sporulation, and temperature sensitivity.
      Beall, B.,Lutkenhaus, J.
      (1989) J.Bacteriol. 171: 6821
    • DivIB, FtsZ and cell division in Bacillus subtilis.
      Rowland, S.L.,Katis, V.L.,Partridge, S.R.,Wake, R.G.
      (1997) Mol.Microbiol. 25: 275


    Organizational Affiliation

    Department of Molecular, Microbial, and Structural Biology and Partnership for Excellence in Structural Biology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030-3305, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
cell-division initiation protein
A
119Geobacillus kaustophilus (strain HTA426)Gene Names: divIB
Find proteins for Q5L0X5 (Geobacillus kaustophilus (strain HTA426))
Go to UniProtKB:  Q5L0X5
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 25 
  • Selection Criteria: lowest energy 
  • Olderado: 1YR1 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-02-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-05-16
    Type: Database references