5IQ8 | pdb_00005iq8

Crystal structure of TEM1 beta-lactamase mutant A224C/G283C disulfide

• PDB DOI: https://doi.org/10.2210/pdb5IQ8/pdb

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


• Deposited: 2016-03-10 Released: 2017-06-28 
• Deposition Author(s): Roose, B.W., Dmochowski, I.J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Department of Defense Lung Cancer Research Program

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.06 Å
• R-Value Free: 
  0.241 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.191 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.197 (Depositor) 

Starting Model: experimental

Literature

Structure of TEM1 beta-lactamase

Roose, B.W., Wang, Y., Dmochowski, I.J.

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: 115.96 kDa 
• Atom Count: 8,835 
• Modeled Residue Count: 1,052 
• Deposited Residue Count: 1,052 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-lactamase TEM	A, B, C, D	263	Escherichia coli	Mutation(s): 3  Gene Names: bla, blaT-3, blaT-4, blaT-5, blaT-6 EC: 3.5.2.6
UniProt
Find proteins for P62593 (Escherichia coli) Explore P62593  Go to UniProtKB:  P62593

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.06 Å
• R-Value Free:  0.241 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.191 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.197 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.858	α = 90
b = 84.705	β = 90
c = 96.344	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2017-06-28 
Deposition Author(s): Roose, B.W., Dmochowski, I.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01-GM097478
Department of Defense Lung Cancer Research Program	United States	W81XWH-14-1-0424

Revision History  

• Version 1.0: 2017-06-28
  Type: Initial release
  
• Version 1.1: 2017-09-20
  Changes: Author supporting evidence
• Version 1.2: 2019-12-25
  Changes: Author supporting evidence
• Version 1.3: 2023-09-27
  Changes: Data collection, Database references, Refinement description
• Version 1.4: 2024-11-20
  Changes: Structure summary