TABLE 5.

PIX cloning efficiencies

attP Phage	CRIM plasmid	No. of Gmr or Kmr transductants per PFUa
λ	pAH63	2.3 × 10−5
HK022	pAH70	1.6 × 10−5
φ80	pAH153	1.9 × 10−4
P21	pAH95	3.9 × 10−5
P22	pAH154	1.8 × 10−7

^aValues are normalized to the I1v⁺ transducing titers. The same P1kc lysates yielded ca. 10⁻⁴ to 10⁻³ I1v⁺ transductants per PFU.