Table 1.

Proportions of Single- and Double-Strand Damage Produced by γ-Radiation and Enediynes

Agent	Ratio of direct single- to double-strand breaks	Ratio of single- to double-strand deoxyribose oxidation events
γ-Radiation	35–100:1a	35–100:1a
Esperamicin A1	24:1b	3.4:1b
Neocarzinostatin	6:1c	2.2:1c
Calicheamicin-γ1I	1:1d	1:24d

^a Reference [25, 26]

^b Reference [29]

^c Reference [30]

^d Reference [12, 31]