title: Bacteriophage lambda and plasmid vectors, allowing fusion of cloned genes in each of the three translational phases.
abstract: We have constructed vectors from bacteriophage lambda and from plasmid pBR322 having a single EcoRI restriction site which is immediately downstream from the lac UV5 promotor. Each vector allows the fusion of a cloned gene to the lac Z gene in a different phase relative to the translation initiation codon of the lac Z gene. These vectors were constructed through modification of the initial EcoRI restriction site by S1 endonuclease treatment and then addition of octadeoxyribonucleotides (EcoRI linkers), which shifted the restriction site by 2 or 4 nucleotides. Used in combination these vectors should allow translation of a cloned gene in any one of the three coding phases. The bacteriophages vectors are certified as B2 (EK2) safety level vectors by the French "recombinaison génétique in vitro" committee (D.G.R.S.T.).
mesh_terms: D001483:Base Sequence; D003090:Coliphages / Q000378:metabolism*; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant / Q000378:metabolism*; D004926:Escherichia coli / Q000378:metabolism; D005814:Genes, Viral; D005838:Genotype; D010957:Plasmids; D014176:Protein Biosynthesis; D013045:Species Specificity
chemical_list: D004274:DNA, Recombinant; D004262:DNA Restriction Enzymes