1IEM

Crystal Structure of AmpC beta-lactamase from E. coli in Complex with a Boronic Acid Inhibitor (1, CefB4)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.228
  • R-Value Work: 0.182

Literature

Macromolecules
Sequence Display for 1IEM

Classification: HYDROLASE

Total Structure Weight: 79931.06

Macromolecule Entities
Molecule Chains Length Organism Details
beta-lactamase A, B 358 Escherichia coli EC#: 3.5.2.6 IUBMB
Gene Name(s): ampC ampA b4150 JW4111
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
CB4
Query on CB4

A, B PINACOL[[2-AMINO-ALPHA-(1-CARBOXY-1-METHYLETHOXYIMINO)- 4-THIAZOLEACETYL]AMINO]METHANEBORONATE
C10 H15 B N4 O6 S
ZECCQELUYUPTSB-UUASQNMZSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
PO4
Query on PO4

A PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
CB4 N/A in BindingDB
N/A in BindingMoad
Ki: 20 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.228
  • R-Value Work: 0.182
  • Space Group: C 1 2 1

Unit Cell:

Length (Å) Angle (°)
a = 118.56 α = 90.00
b = 78.06 β = 115.44
c = 97.24 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-04-10
  • Released Date: 2001-08-15
  • Deposition author(s): Powers, R.A., Caselli, E., Focia, P.J., Prati, F., Shoichet, B.K.

Revision History

  • Version 1_0: 2001-08-15

    Type: Initial release

  • Version 1_1: 2008-04-27

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance