Crystal Structure of the GerBC protein

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

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Crystal Structure of the GerBC Component of a Bacillus subtilis Spore Germinant Receptor.

Li, Y.Setlow, B.Setlow, P.Hao, B.

(2010) J Mol Biol 402: 8-16

  • DOI: https://doi.org/10.1016/j.jmb.2010.07.018
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The nutrient germinant receptors (nGRs) of spores of Bacillus species are clusters of three proteins that play a critical role in triggering the germination of dormant spores in response to specific nutrient molecules. Here, we report the crystal structure of the C protein of the GerB germinant receptor, so-called GerBC, of Bacillus subtilis spores at 2.3 A resolution. The GerBC protein adopts a previously uncharacterized type of protein fold consisting of three distinct domains, each of which is centered by a beta sheet surrounded by multiple alpha helices. Secondary-structure prediction and structure-based sequence alignment suggest that the GerBC structure represents the prototype for C subunits of nGRs from spores of all Bacillales and Clostridiales species and defines two highly conserved structural regions in this family of proteins. GerBC forms an interlocked dimer in the crystalline state but is predominantly monomeric in solution, pointing to the possibility that GerBC oligomerizes as a result of either high local protein concentrations or interaction with other nGR proteins in spores. Our findings provide the first structural view of the nGR subunits and a molecular framework for understanding the architecture, conservation, and function of nGRs.

  • Organizational Affiliation

    Department of Molecular,Microbial and Structural Biology, University of Connecticut Health Center, Farmington, CT 06030-3305, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Spore germination protein B3A [auth B]350Bacillus subtilis subsp. subtilis str. 168Mutation(s): 0 
Gene Names: BSU35820gerBC
Find proteins for P39571 (Bacillus subtilis (strain 168))
Explore P39571 
Go to UniProtKB:  P39571
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP39571
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on SO4

Download Ideal Coordinates CCD File 
C [auth B]
D [auth B]
E [auth B]
F [auth B]
C [auth B],
D [auth B],
E [auth B],
F [auth B],
G [auth B],
H [auth B],
I [auth B],
J [auth B]
O4 S
Query on CL

Download Ideal Coordinates CCD File 
K [auth B]
L [auth B]
M [auth B]
N [auth B]
O [auth B]
K [auth B],
L [auth B],
M [auth B],
N [auth B],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
S [auth B]
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.785α = 90
b = 142.785β = 90
c = 187.827γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXmodel building
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-08-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2024-02-21
    Changes: Data collection, Database references, Derived calculations