Summary: Plasmids which determine the ability of a bacterium to ferment lactose.
Steffen D, Schleif R. In vitro construction of plasmids which result in overproduction of the protein product of the araC gene of Escherichia coli. Mol Gen Genet. 1977;157:341-4 pubmed
..coli fused to the araC gene of E. coli. E. coli possessing these plasmids contain about 50 times as much of the araC gene product as do cells with a wild-type araC gene and promotor. ..
Messing J, Gronenborn B, Müller Hill B, Hans Hopschneider P. Filamentous coliphage M13 as a cloning vehicle: insertion of a HindII fragment of the lac regulatory region in M13 replicative form in vitro. Proc Natl Acad Sci U S A. 1977;74:3642-6 pubmed
..083 map unit on thewild-type circular map-i.e., within the intergenic region. The results prove that part of the intergenic region is nonessential and that the phage can be used as a cloning vehicle. ..
Har El R, Silberstein A, Kuhn J, Tal M. Synthesis and degradation of lac mRNA in E. coli depleted of 30S ribosomal subunits. Mol Gen Genet. 1979;173:135-44 pubmed
..The functional T 1/2 was increased in pnp mutants and was 95 min during the recovery period. The rate of chemical decay is so slow that the half-life cannot be accurately determined. ..
Polzin K, Shimizu Kadota M. Identification of a new insertion element, similar to gram-negative IS26, on the lactose plasmid of Streptococcus lactis ML3. J Bacteriol. 1987;169:5481-8 pubmed
..5% identical) of the open reading of frame. ..
Christensen J, LeClerc J, Tata P, Christensen R, Lawrence C. UmuC function is not essential for the production of all targeted lacI mutations induced by ultraviolet light. J Mol Biol. 1988;203:635-41 pubmed
..We conclude that UmuC function, rather than being essential, facilitates recovery and specifically, following the model of Bridges & Woodgate, that it facilitates the prompt resumption of chain elongation. ..
Gasson M. Plasmid complements of Streptococcus lactis NCDO 712 and other lactic streptococci after protoplast-induced curing. J Bacteriol. 1983;154:1-9 pubmed
..Curing of cryptic molecules from multiple plasmid complements by protoplast regeneration may prove to be generally valuable in lactic streptococci and other gram-positive species. ..
Gollapudi B, Jackson K, Stott W. Hepatic lacI and cII mutation in transgenic (lambdaLIZ) rats treated with dimethylnitrosamine. Mutat Res. 1998;419:131-5 pubmed