6XFS | pdb_00006xfs

Class C beta-lactamase from Escherichia coli in complex with Tazobactam

• PDB DOI: https://doi.org/10.2210/pdb6XFS/pdb
• Entry: 6XFS supersedes: 6WA7

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2020-06-16 Released: 2020-07-15 
• Deposition Author(s): Chang, C., Maltseva, N., Endres, M., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.249 (Depositor), 0.252 (DCC) 
• R-Value Work: 
  0.188 (Depositor), 0.193 (DCC) 
• R-Value Observed: 
  0.191 (Depositor) 

Starting Model: experimental

Re-refinement Note

This entry reflects an alternative modeling of the original data in: 6WA7

Literature

Class C beta-lactamase from Escherichia coli in complex with Tazobactam

Chang, C., Maltseva, N., Endres, M., Joachimiak, A.

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)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

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

Biological assembly 3 assigned by authors and generated by PISA (software)

Biological Assembly 4  

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

Biological assembly 4 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 161.3 kDa 
• Atom Count: 11,413 
• Modeled Residue Count: 1,430 
• Deposited Residue Count: 1,444 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-lactamase	A, B, C, D	361	Escherichia coli	Mutation(s): 0  Gene Names: bla(ampc-EC31), blaEC EC: 3.5.2.6
UniProt
Find proteins for P00811 (Escherichia coli (strain K12)) Explore P00811  Go to UniProtKB:  P00811

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TBE (Subject of Investigation/LOI)	E [auth A], H [auth B], L [auth C], M [auth D]	TAZOBACTAM INTERMEDIATE C10 H14 N4 O5 S ANZZKUOZZHRUQC-AARLMMRRSA-N
PGE	I [auth B], N [auth D]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N
PEG	K [auth C]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
EDO	F [auth A], G [auth A], J [auth B], O [auth D]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.249 (Depositor), 0.252 (DCC) 
• R-Value Work:  0.188 (Depositor), 0.193 (DCC) 
• R-Value Observed: 0.191 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.915	α = 90
b = 170.299	β = 89.98
c = 89.947	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
SCALEPACK	data scaling
SBC-Collect	data collection
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-07-15 
Deposition Author(s): Chang, C., Maltseva, N., Endres, M., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)
• This entry supersedes: 6WA7

Revision History  

• Version 1.0: 2020-07-15
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Advisory, Data collection, Database references, Refinement description
• Version 1.2: 2024-10-16
  Changes: Structure summary