. "A 2.0-kb fragment from the Lactobacillus gasseri temperate bacteriophage phi adh contained the essential genetic determinants for site-specific integration. The nucleotide sequence of this fragment was determined. An open reading frame (intG), which adjoined the phage attachment site (attP), encoded a deduced protein related to the integrase family. The organization of this region was comparable to other phage site-specific recombination systems." . . . "Gene" . "Klaenhammer T.R." . "Raya R.R." . "Fremaux C." . "De Antoni G.L." . "Klaenhammer T." . "De Antoni G." . "Raya R." . "1993"^^ . "61-66" . "Genetic organization and sequence of the region encoding integrative functions from Lactobacillus gasseri temperate bacteriophage phi adh." . "126" . "doi:10.1016/0378-1119(93)90590-Y" .