Cloning and nucleotide sequence of anaerobically induced porin protein E1 (OprE) of Pseudomonas aeruginosa PAO1

Mol Microbiol. 1993 May;8(5):993-1004. doi: 10.1111/j.1365-2958.1993.tb01643.x.


The porin oprE gene of Pseudomonas aeruginosa PAO1 was isolated. Its nucleotide sequence indicated that the structural gene of 1383 nucleotide residues encodes a precursor consisting of 460 amino acid residues with a signal peptide of 29 amino acid residues, which was confirmed by the N-terminal 23-amino-acid sequence and the reaction with anti-OprE polyclonal antiserum. Anaerobiosis induced OprE production at the transcription level. The transcription start site was determined to be 40 nucleotides upstream from the ATG initiation codon. The control region contained an appropriately situated E sigma 54 recognition site and the putative second half of an ANR box. The amino acid sequence of OprE had some clusters of sequence homologous with that of OprD of P. aeruginosa, which might be responsible for the outer membrane permeability of imipenem and basic amino acids.

Publication types

  • Comparative Study

MeSH terms

  • Amino Acid Sequence
  • Anaerobiosis
  • Bacterial Outer Membrane Proteins / biosynthesis
  • Bacterial Outer Membrane Proteins / genetics*
  • Bacterial Proteins*
  • Base Sequence
  • Cloning, Molecular
  • Consensus Sequence
  • Gene Expression Regulation, Bacterial*
  • Genes, Bacterial*
  • Molecular Sequence Data
  • Porins
  • Pseudomonas aeruginosa / genetics*
  • Pseudomonas aeruginosa / metabolism
  • Recombinant Fusion Proteins / biosynthesis
  • Recombinant Fusion Proteins / genetics
  • Sequence Alignment
  • Sequence Homology, Amino Acid
  • Transcription, Genetic


  • Bacterial Outer Membrane Proteins
  • Bacterial Proteins
  • OprE protein, Pseudomonas
  • Porins
  • Recombinant Fusion Proteins

Associated data

  • GENBANK/D12711