1R1D

Structure of a Carboxylesterase from Bacillus stearothermophilus

• PDB DOI: https://doi.org/10.2210/pdb1R1D/pdb

• Classification: HYDROLASE
• Organism(s): Geobacillus stearothermophilus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-09-23 Released: 2004-03-02 
• Deposition Author(s): Cuff, M.E., Zhou, M., Collart, F., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.245 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 

Literature

Structure of a Carboxylesterase from Bacillus stearothermophilus

Cuff, M.E., Zhou, M., Collart, F., Joachimiak, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 58.2 kDa 
• Atom Count: 4,641 
• Modelled Residue Count: 484 
• Deposited Residue Count: 494 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Carboxylesterase	A, B	247	Geobacillus stearothermophilus	Mutation(s): 0  Gene Names: EST EC: 3.1.1.1
UniProt
Find proteins for Q06174 (Geobacillus stearothermophilus) Explore Q06174  Go to UniProtKB:  Q06174

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EPE	C [auth A], D [auth B]	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C8 H18 N2 O4 S JKMHFZQWWAIEOD-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.245 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.922	α = 90
b = 81.683	β = 90
c = 130.582	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
d*TREK	data reduction
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing
autoSHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-03-02 
Deposition Author(s): Cuff, M.E., Zhou, M., Collart, F., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2004-03-02
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary