title: Initiation by bacteriophage T1 of DNA packaging at a site between the P and Q genes of bacteriophage lambda.
abstract: The growth of phage T1 on cells tandemly lysogenic for heteroimmune lambdoid prophages leads to a nonrandom packaging of lambda DNA by T1. A site, called esp-lambda, is located between the P and Q genes of lambda and results in increased packaging to the left by T1. When cloned into pBR322, the esp-lambda site causes a significant increase in transduction of the plasmid by T1. The nin5 deletion inactivates esp-lambda.
mesh_terms: D010582:Bacteriophage lambda / Q000235:genetics*; D003001:Cloning, Molecular; D004279:DNA, Viral / Q000378:metabolism*; D004926:Escherichia coli; D010957:Plasmids; D013604:T-Phages / Q000235:genetics*; D014161:Transduction, Genetic
chemical_list: D004279:DNA, Viral