2ZQA

Cefotaxime acyl-intermediate structure of class a beta-lacta Toho-1 E166A/R274N/R276N triple mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.95 Å
  • R-Value Free: 0.145 
  • R-Value Work: 0.135 
  • R-Value Observed: 0.136 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 2.2 of the entry. See complete history


Literature

Structural Basis of Extend Spectrum Beta-Lactamase in Correlation of Enzymatic Kinetics and Thermal Stability of Acyl-Intermediates

Nitanai, Y.Shimamura, T.Uchiyama, T.Ishii, Y.Takehira, M.Yutan, K.Matsuzawa, H.Miyano, M.

To be published.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-lactamase Toho-1262Escherichia coliMutation(s): 3 
Gene Names: bla
EC: 3.5.2.6
UniProt
Find proteins for Q47066 (Escherichia coli)
Explore Q47066 
Go to UniProtKB:  Q47066
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ47066
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.95 Å
  • R-Value Free: 0.145 
  • R-Value Work: 0.135 
  • R-Value Observed: 0.136 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.522α = 90
b = 72.522β = 90
c = 97.96γ = 120
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
HKL-2000data collection
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-07-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-08-24
    Changes: Non-polymer description
  • Version 2.0: 2018-09-19
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
  • Version 2.1: 2023-11-01
    Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description
  • Version 2.2: 2024-10-23
    Changes: Structure summary