PCR detection of genes in K139 phage and genes in and adjacent to the TCP island. Whole cells were used as templates in lanes 1, 3, and 5, while phage preparations were used in lanes 2, 4, and 6. Primers for the K139 gene glo were used in lanes 1 and 2; primers for tcpJ were used in lanes 3 and 4; and primers for VC0815 were used in lanes 5 and 6.