1K4E

CRYSTAL STRUCTURE OF THE CLASS D BETA-LACTAMASES OXA-10 DETERMINED BY MAD PHASING WITH SELENOMETHIONINE

• PDB DOI: https://doi.org/10.2210/pdb1K4E/pdb

• Classification: HYDROLASE
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2001-10-08 Released: 2001-10-31 
• Deposition Author(s): Kerff, F., Fonze, E., Bouillene, F., Frere, J.M., Charlier, P.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.226 
• R-Value Work: 0.201 
• R-Value Observed: 0.201 

Literature

STRUCTURE OF CLASS D BETA-LACTAMASE OXA-2

Kerff, F., Fonze, E., Bouillene, F., Frere, J.M., Charlier, P.

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 and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 56.27 kDa 
• Atom Count: 4,250 
• Modelled Residue Count: 491 
• Deposited Residue Count: 496 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-lactamase PSE-2	A, B	248	Pseudomonas aeruginosa	Mutation(s): 5  Gene Names: plasmid pMON234 EC: 3.5.2.6
UniProt
Find proteins for P14489 (Pseudomonas aeruginosa) Explore P14489  Go to UniProtKB:  P14489

Small Molecules

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

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
KCX	A, B	L-PEPTIDE LINKING	C7 H14 N2 O4		LYS
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: 0.226 
• R-Value Work: 0.201 
• R-Value Observed: 0.201 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.562	α = 90
b = 102.273	β = 90
c = 126.349	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
SOLVE	phasing
CNS	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-10-31 
Deposition Author(s): Kerff, F., Fonze, E., Bouillene, F., Frere, J.M., Charlier, P.

Revision History  

• Version 1.0: 2001-10-31
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-12-21
  Changes: Database references, Derived calculations