1FCM

CRYSTAL STRUCTURE OF THE E.COLI AMPC BETA-LACTAMASE MUTANT Q120L/Y150E COVALENTLY ACYLATED WITH THE INHIBITORY BETA-LACTAM, CLOXACILLIN

Structural Biology Knowledgebase: 1FCM SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.46 Å
  • R-Value Free: 0.265
  • R-Value Work: 0.207

Literature

Macromolecules
Sequence Display for 1FCM

Classification: hydrolase / antibiotic

Total Structure Weight: 79954.42

Macromolecule Entities
Molecule Chains Length Organism Details
BETA-LACTAMASE A, B 358 Escherichia coli EC#: 3.5.2.6 IUBMB
Mutation: Q117L, Y147E
Details: INHIBITOR CLOXACILLIN, RESIDUE CXU, BINDS TO SER 61 BY BREAKING ITS C1-N1 LACTAM BOND
Gene Name(s): ampC ampA b4150 JW4111
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
CXU
Query on CXU

A, B CLOXACILLIN (OPEN FORM)
(2R,4S)-2-[(1R)-1-({[3-(2-chlorophenyl)-5- methyl-1,2-oxazol-4-yl]carbonyl}amino)-2- oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4- carboxylic acid (Synonym)
C19 H20 Cl N3 O5 S
DMRXQBXKFQMOBD-ISTRZQFTSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.46 Å
  • R-Value Free: 0.265
  • R-Value Work: 0.207
  • Space Group: C 1 2 1

Unit Cell:

Length (Å) Angle (°)
a = 118.52 α = 90.00
b = 76.19 β = 116.68
c = 98.28 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2000-07-18
  • Released Date: 2000-12-04
  • Deposition author(s): Patera, A., Blaszczak, L.C., Shoichet, B.K.

Revision History

  • 2011-08-24
    Type: Non-polymer description | Details: Change CXN to CXU ligand - ring open form of cloxacillin
  • 2011-08-24
    Type: Function and keywords | Details: Indicate that antibiotic present
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4