Table 5.

Transduction frequency of theta replicating plasmids bearing different SPP1 DNA regions.

Plasmid	Length of homologous region	Special features	Transduction Frequencya	CI0.95b
pBT233N	–	–	8.2 × 10-8	±7.1 × 10-8
pBT233N-400	414 bp	homology	3.1 × 10-5	±1.9 × 10-5
pBT233N-1300	1340 bp	homology	4.5 × 10-4	±3.0 × 10-4
pBT233N-pac	412 bp	pac	1.7 x 10-4	±2.8 × 10-4
pBT233N-oriL	360 bp	oriL	1.5 x 10-4	±1.6 × 10-4
pNDH33	–	–	5.6 × 10-7	±2.9 × 10-7
pNDH33-1300	1340 bp	homology	2.0 × 10-4	±8.5 × 10-5
pNDH33-pac	412 bp	pac	3.9 x 10-4	±3.2 × 10-4

^aThe transduction frequency (transductans/CFU) is the mean of at least five independent experiments. ^bCI, confidence interval.