5V8E

Structure of Bacillus cereus PatB1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

PatB1 is an O-acetyltransferase that decorates secondary cell wall polysaccharides.

Sychantha, D.Little, D.J.Chapman, R.N.Boons, G.J.Robinson, H.Howell, P.L.Clarke, A.J.

(2018) Nat Chem Biol 14: 79-85

  • DOI: 10.1038/nchembio.2509
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • O-Acetylation of the secondary cell wall polysaccharides (SCWP) of the Bacillus cereus group of pathogens, which includes Bacillus anthracis, is essential for the proper attachment of surface-layer (S-layer) proteins to their cell walls. Using a vari ...

    O-Acetylation of the secondary cell wall polysaccharides (SCWP) of the Bacillus cereus group of pathogens, which includes Bacillus anthracis, is essential for the proper attachment of surface-layer (S-layer) proteins to their cell walls. Using a variety of pseudosubstrates and a chemically synthesized analog of SCWP, we report here the identification of PatB1 as a SCWP O-acetyltransferase in Bacillus cereus. Additionally, we report the crystal structure of PatB1, which provides detailed insights into the mechanism of this enzyme and defines a novel subfamily of the SGNH family of esterases and lipases. We propose a model for the O-acetylation of SCWP requiring the translocation of acetyl groups from a cytoplasmic source across the plasma membrane by PatA1 and PatA2 for their transfer to SCWP by PatB1.


    Organizational Affiliation

    Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bacillus cereus PatB1
A, B
309Bacillus cereus ATCC 10987Mutation(s): 6 
Gene Names: BCE_0974
Find proteins for Q73CU0 (Bacillus cereus (strain ATCC 10987 / NRS 248))
Go to UniProtKB:  Q73CU0
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

Download CCD File 
A, B
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download CCD File 
A, B
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 133.76α = 90
b = 133.76β = 90
c = 87.311γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing
PHASERmodel building

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-10-18
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Database references
  • Version 1.2: 2017-12-20
    Changes: Database references