2QM0 | pdb_00002qm0

Crystal structure of BES protein from Bacillus cereus

• PDB DOI: https://doi.org/10.2210/pdb2QM0/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Bacillus cereus ATCC 14579
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2007-07-13 Released: 2007-07-31 
• Deposition Author(s): Kim, Y., Maltseva, N., Zawadzka, A., Holzle, D., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free: 
  0.228 (Depositor), 0.244 (DCC) 
• R-Value Work: 
  0.184 (Depositor), 0.201 (DCC) 
• R-Value Observed: 
  0.189 (Depositor) 

Literature

Crystal Structure of BES from Bacillus cereus.

Kim, Y., Maltseva, N., Zawadzka, A., Holzle, D., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 63.13 kDa 
• Atom Count: 4,991 
• Modeled Residue Count: 530 
• Deposited Residue Count: 550 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BES	A, B	275	Bacillus cereus ATCC 14579	Mutation(s): 4  Gene Names: BC_3734
UniProt
Find proteins for Q81A57 (Bacillus cereus (strain ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC 15305 / NCIMB 9373 / NCTC 2599 / NRRL B-3711)) Explore Q81A57  Go to UniProtKB:  Q81A57

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A], E [auth B], F [auth B], G [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET
SVY	A, B	L-PEPTIDE LINKING	C9 H20 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free:  0.228 (Depositor), 0.244 (DCC) 
• R-Value Work:  0.184 (Depositor), 0.201 (DCC) 
• R-Value Observed: 0.189 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.849	α = 90
b = 135.058	β = 90
c = 200.873	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
SHELXD	phasing
SHELXE	model building
MLPHARE	phasing
DM	phasing
SOLVE	phasing
RESOLVE	phasing
CCP4	phasing
ARP/wARP	model building
O	model building
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-07-31 
Deposition Author(s): Kim, Y., Maltseva, N., Zawadzka, A., Holzle, D., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-07-31
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2025-03-26
  Changes: Data collection, Database references, Derived calculations, Structure summary