title: Plasmid-directed expression of Staphylococcus aureus beta-lactamase by Bacillus subtilis in vitro.
abstract: A plasmid carrying the Gram-positive Staphylococcus aureus PC1 beta-lactamase gene is active in directing a cell-free transcription and translation system from Bacillus subtilis. The major protein synthesized has been identified as the S. aureus beta-lactamase on the basis of peptide mapping. The protein is larger than the extracellular enzyme by about Mr = 3100. Significant in vitro translation of the beta-lactamase mRNA occurs in the absence of the initiation factor fraction as is characteristic of translation of mRNAs of Gram-positive origin. The 1250 base transcript that encodes the beta-lactamase and leader sequence has been mapped on the plasmid molecule.
mesh_terms: D001412:Bacillus subtilis / Q000201:enzymology* / Q000235:genetics; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant / Q000378:metabolism*; D008970:Molecular Weight; D010446:Peptide Fragments / Q000032:analysis; D010957:Plasmids; D014176:Protein Biosynthesis; D013211:Staphylococcus aureus / Q000201:enzymology* / Q000235:genetics; D001618:beta-Lactamases / Q000235:genetics*
chemical_list: D004274:DNA, Recombinant; D010446:Peptide Fragments; D004262:DNA Restriction Enzymes; D001618:beta-Lactamases