Table 2. Excision frequencies of the ISDra2-113 derivative in a Deinococcus radiodurans tester strain^a expressing TnpA_Dra2 variants.

Resident plasmid	TnpADra2 expressed in trans	Excision frequency
No	No	<10−8
pGY11559	No	<10−8
pGY13203	TnpA wt	3.2 (±0.6) × 10−3
pGY13521	TnpAR14A	5.3 (±1.6) × 10−5
pGY13522	TnpAS122G/E123G	1.7 (±0.3) × 10−3
aGY13115 genotype: ΔDR1652ΔDR1651ΩtetAΩISDra2-113 (CamR) (Pasternak et al, 2010).