Table 1. Sequences of the oligonucleotides.

Positions	Sequence	Strand
–5	5′-ctcttagtca ggaaYatgtc tctatgctgg gagcaaaggc-3′	(1)
	3′-gagaatcagt ccttNtacaX agatacgacc ctcgtttccg-5′	(2)
–3	5′-ctcttagtca ggaataYgtc tctatgctgg gagcaaaggc-3′
	3′-gagaatcagt ccttatNcaX agatacgacc ctcgtttccg-5′
–1	5′-ctcttagtca ggaatatgYc tctatgctgg gagcaaaggc-3′
	3′-gagaatcagt ccttatacNX agatacgacc ctcgtttccg-5′
+1	5′-ctcttagtca ggaatatgtc Yctatgctgg gagcaaaggc-3′
	3′-gagaatcagt ccttatacaX Ngatacgacc ctcgtttccg-5′
+3	5′-ctcttagtca ggaatatgtc tcYatgctgg gagcaaaggc-3′
	3′-gagaatcagt ccttatacaX agNtacgacc ctcgtttccg-5′
+5	5′-ctcttagtca ggaatatgtc tctaYgctgg gagcaaaggc-3′
	3′-gagaatcagt ccttatacaX agatNcgacc ctcgtttccg-5′

X, 8-oxoG; Y, DHT, 8-oxoG, uracil, AP, reduced AP site, β-SSB, β–δ-SSB, HAP1-SSB or the normal corresponding base (T for DHT, uracil, AP and relatives, G for 8-oxoG); N, normal base complementary to the Y base (A opposite uracil, AP or DHT, C opposite 8-oxoG). –5 to –1, position on the complementary strand of the X base 3′ from the Y base. +1 to +5, position on the complementary strand of the X base 5′ from the Y base.