Schematic representation of the bacterial chromosomal attachment site (attB) of L. sanfranciscensis TMW 1.1304 (A) and prophage integration in strain H2A (B) tRNAleu sequence is italicized. Only the outmost prophage lysin and integrase genes are depicted. The arrows provide the locations of the primers used for PCR. Relevant nucleotide sequences are provided in enlarged inserts. Stop codons of flanking genes are in bold. Putative att sites are boxed. Repeats are underlinded.