S. Das et al., RADIATION-INDUCED DOUBLE-STRAND MODIFICATION IN CALF THYMUS DNA IN THE PRESENCE OF 1,2-DIHYDROXY-9,10-ANTHRAQUINONE AND ITS CU(II) COMPLEX, Environmental health perspectives, 105, 1997, pp. 1459-1462
When cells or DNA is exposed to ionizing radiation, the radicals produ
ced in the irradiated sample will modify the base-pair region of the d
ouble strands. Effects of 1,2-dihydroxy-9,10-anthraquinone (DHA) and i
ts Cu(II) complex on the radiation-induced modification of double-stra
nds in calf thymus DNA were studied using ethidium bromide as a fluore
scent probe. Our results show that the Cu(II)-DHA complex is more effi
cient in modifying the base-pair region in double-stranded DNA compare
d to free DHA.