title: Nucleotide sequence of the regulatory gene xylS on the Pseudomonas putida TOL plasmid and identification of the protein product.
abstract: The xylS gene is a regulatory gene which positively controls expression of the genes on the TOL plasmid for degradation enzymes of benzoate or m-toluate in Pseudomonas putida. Cloning of the gene in Escherichia coli and determination of the nucleotide sequence revealed an open reading frame of 963 bp which corresponds to a protein with an Mr of 36,502. The xylS gene was recloned onto a tac-promoter vector, and the product was identified by the maxicell procedure as a protein with an approximate Mr of 37,000. The predicted amino acid sequence of XylS protein showed a basic character and contained a region similar to those in other DNA-binding proteins.
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D001565:Benzoates / Q000378:metabolism; D004262:DNA Restriction Enzymes; D004926:Escherichia coli / Q000235:genetics; D005798:Genes, Bacterial; D005809:Genes, Regulator; D005838:Genotype; D010957:Plasmids; D011549:Pseudomonas / Q000235:genetics*
chemical_list: D001426:Bacterial Proteins; D001565:Benzoates; C009503:3-toluic acid; D004262:DNA Restriction Enzymes