3B8B | pdb_00003b8b

Crystal structure of CysQ from Bacteroides thetaiotaomicron, a bacterial member of the inositol monophosphatase family

• PDB DOI: https://doi.org/10.2210/pdb3B8B/pdb

• Classification: HYDROLASE
• Organism(s): Bacteroides thetaiotaomicron VPI-5482
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-10-31 Released: 2007-12-18 
• Deposition Author(s): Cuff, M.E., Mulligan, R., Abdullah, J., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.188 (Depositor), 0.192 (DCC) 
• R-Value Work: 
  0.166 (Depositor), 0.172 (DCC) 
• R-Value Observed: 
  0.167 (Depositor) 

Literature

The structure of CysQ from Bacteroides thetaiotaomicron, a bacterial member of the inositol monophosphatase family.

Cuff, M.E., Mulligan, R., Abdullah, J., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 33.58 kDa 
• Atom Count: 2,607 
• Modeled Residue Count: 271 
• Deposited Residue Count: 292 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CysQ, sulfite synthesis pathway protein	A	292	Bacteroides thetaiotaomicron VPI-5482	Mutation(s): 0  Gene Names: cysQ, BT_0411 EC: 3.1.3.7
UniProt
Find proteins for Q8AAQ3 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50)) Explore Q8AAQ3  Go to UniProtKB:  Q8AAQ3

Small Molecules

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

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.188 (Depositor), 0.192 (DCC) 
• R-Value Work:  0.166 (Depositor), 0.172 (DCC) 
• R-Value Observed: 0.167 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.927	α = 90
b = 93.927	β = 90
c = 140.783	γ = 120

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-12-18 
Deposition Author(s): Cuff, M.E., Mulligan, R., Abdullah, J., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-12-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2024-10-09
  Changes: Data collection, Database references, Derived calculations, Structure summary