2W1T

Crystal Structure of B. subtilis SpoVT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal Structure of Spovt, the Final Modulator of Gene Expression During Spore Development in Bacillus Subtilis

Asen, I.Djuranovic, S.Lupas, A.N.Zeth, K.

(2009) J.Mol.Biol. 386: 962

  • DOI: 10.1016/j.jmb.2008.10.061
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Endospore formation in Bacillus subtilis is orchestrated by five developmental sigma factors and further modulated by several auxiliary transcription factors. One of these, SpoVT, regulates forespore-specific sigma(G)-dependent genes and plays a key ...

    Endospore formation in Bacillus subtilis is orchestrated by five developmental sigma factors and further modulated by several auxiliary transcription factors. One of these, SpoVT, regulates forespore-specific sigma(G)-dependent genes and plays a key role in the final stages of spore formation. We have determined the crystal structure of the isolated C-terminal domain of SpoVT at 1.5 A by experimental phasing techniques and used this model to solve the structure of the full-length SpoVT at 2.6 A by molecular replacement. SpoVT is a tetramer that shows an overall significant distortion mediated by electrostatic interactions. Two monomers dimerize via the highly charged N-terminal domains to form swapped-hairpin beta-barrels. These asymmetric dimers further tetramerize through the formation of mixed helix bundles between their C-terminal domains, which themselves fold as GAF (cGMP-specific and cGMP-stimulated phosphodiesterases, Anabaena adenylate cyclases, and Escherichia coli FhlA) domains. The combination of a swapped-hairpin beta-barrel with a GAF domain represents a novel domain architecture in transcription factors. The occurrence of SpoVT homologs throughout Bacilli and Clostridia demonstrates the ancestral origin of this factor in sporulation.


    Organizational Affiliation

    Department of Membrane Biochemistry, Max Planck Institute for Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
STAGE V SPORULATION PROTEIN T
A
178Bacillus subtilis (strain 168)Mutation(s): 0 
Gene Names: spoVT (yabL)
Find proteins for P37554 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P37554
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
STAGE V SPORULATION PROTEIN T
B
178Bacillus subtilis (strain 168)Mutation(s): 0 
Gene Names: spoVT (yabL)
Find proteins for P37554 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P37554
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.225 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 94.490α = 90.00
b = 94.490β = 90.00
c = 110.750γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-11-18
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-01-24
    Type: Source and taxonomy