title: In vitro coupled transcription-translation of linear DNA fragments in a lysate derived from a recB rna pnp strain of Escherichia coli.
abstract: A recB21 derivative (CLB7) of an Escherichia coli rna-19 pnp-7 strain (PR7) was constructed for use in examining the in vitro coupled transcription-translation of linear DNA. The expression of linearized DNAs in CLB7 (recB21 rna-19 pnp-7) lysates was enhanced significantly when compared with expression of the same DNAs in lysates prepared from the PR7 or the original recB21 (CF300) strains. In addition, the endogenous incorporation of [35S]methionine into protein was considerably reduced in CLB7 lysates relative to lysates derived from the original recB21 strain.
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis; D004269:DNA, Bacterial / Q000235:genetics*; D004274:DNA, Recombinant; D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism; D029968:Escherichia coli Proteins; D043211:Exodeoxyribonuclease V; D005090:Exodeoxyribonucleases / Q000378:metabolism; D010957:Plasmids; D011117:Polyribonucleotide Nucleotidyltransferase / Q000378:metabolism; D014176:Protein Biosynthesis; D012260:Ribonucleases / Q000378:metabolism; D014158:Transcription, Genetic
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004274:DNA, Recombinant; D029968:Escherichia coli Proteins; D011117:Polyribonucleotide Nucleotidyltransferase; D005090:Exodeoxyribonucleases; D012260:Ribonucleases; D043211:Exodeoxyribonuclease V; C468322:exodeoxyribonuclease V, E coli