3NIA

GES-2 carbapenemase tazobactam complex

• PDB DOI: https://doi.org/10.2210/pdb3NIA/pdb

• Classification: Hydrolase/Hydrolase Inhibitor
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-06-15 Released: 2011-03-02 
• Deposition Author(s): Frase, H., Smith, C.A., Toth, M., Vakulenko, S.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.193 
• R-Value Work: 0.155 
• R-Value Observed: 0.157 

Starting Model: experimental

Literature

Inhibition of the GES-2 beta-Lactamse by Tazobactam: Detection of Reaction Intermediates by UV and Mass Spectrometry and X-Ray Crystallography

Frase, H., Smith, C.A., Toth, M., Champion, M.M., Mobashery, S., Vakulenko, S.B.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 29.86 kDa 
• Atom Count: 2,497 
• Modelled Residue Count: 267 
• Deposited Residue Count: 269 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-lactamase GES-2	A	269	Pseudomonas aeruginosa	Mutation(s): 0  Gene Names: bla GES-2 EC: 3.5.2.6
UniProt
Find proteins for Q93F76 (Pseudomonas aeruginosa) Explore Q93F76  Go to UniProtKB:  Q93F76

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TBE	B [auth A]	TAZOBACTAM INTERMEDIATE C10 H14 N4 O5 S ANZZKUOZZHRUQC-AARLMMRRSA-N
TF7	C [auth A]	(3S)-3-(dihydroxy-lambda~4~-sulfanyl)-4-(1H-1,2,3-triazol-1-yl)-D-valine C7 H14 N4 O4 S YZPZKAQMEJGYGB-FSPLSTOPSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.193 
• R-Value Work: 0.155 
• R-Value Observed: 0.157 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.44	α = 90
b = 83.44	β = 90
c = 70.97	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
MOLREP	phasing
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-03-02 
Deposition Author(s): Frase, H., Smith, C.A., Toth, M., Vakulenko, S.B.

Revision History  

• Version 1.0: 2011-03-02
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2024-11-06
  Changes: Structure summary