PURIFICATION, CRYSTALLIZATION AND PRELIMINARY-X-RAY ANALYSIS OF PENICILLIN-BINDING PROTEIN-4 FROM ESCHERICHIA-COLI, A PROTEIN RELATED TO CLASS-A BETA-LACTAMASES

MMGM THUNNISSEN*, F FUSETTI, B DEBOER, BW DIJKSTRA

*Corresponding author for this work

Research output: Contribution to journalComment/Letter to the editorAcademicpeer-review

Abstract

Crystals of the penicillin binding protein 4 (PBP4) from Escherichia coli have been obtained at 37 degrees C from liquid to liquid diffusion experiments in capillaries. PBP4 was dissolved in a 1.0 M ammonium sulphate solution, buffered at pH 7.2, to a concentration of 5 mg/ml, and was layered on top of a 1.6 to 2.2 M ammonium sulphate solution. Crystals appeared within four to six weeks. They belong to space group C222 with cell dimensions a = 68.5 Angstrom, b = 100.5 Angstrom and c = 137.0 Angstrom, and diffract to at least 2.8 Angstrom resolution. There is one molecule with a molecule mass of 49,568 Da in the asymmetric unit.

Original languageEnglish
Pages (from-to)149-153
Number of pages5
JournalJournal of Molecular Biology
Volume247
Issue number2
Publication statusPublished - 24-Mar-1995

Keywords

  • CRYSTALLIZATION
  • PENICILLIN
  • BINDING PROTEIN
  • BETA-LACTAMASE
  • MUREIN
  • PEPTIDOGLYCAN
  • REFINED CRYSTAL-STRUCTURE
  • BACILLUS-LICHENIFORMIS
  • NUCLEOTIDE-SEQUENCE
  • NM RESOLUTION
  • CRYSTALLIZATION
  • ENZYME
  • GENE
  • BIOSYNTHESIS
  • INHIBITION
  • RESISTANCE

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