Table 2. Double-stranded oligonucleotides containing two uracil lesions.

Name	Position of two Us relative to each other		Sequence
	5′ or 3′	Base pairs apart
U – 34	5′	33	5′ TAAATACAAAGGATATCAGGTGGCCCCCGCTGAATUGGAAT 3′
			3′ TAAUTTATGTTTCCTATAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U – 21	5′	20	5′ TAAATACAAAGGATATCAGGTGGCCCCCGCTGAATUGGAAT 3′
			3′ TAATTTATGTTTCCTAUAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U – 19	5′	18	5′ TAAATACAAAGGATATCAGGUGGCCCCCGCTGAATTGGAAT 3′
			3′ TAAUTTATGTTTCCTATAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U – 14	5′	13	5′ TAAATACAAAGGATAUCAGGTGGCCCCCGCTGAATTGGAAT 3′
			3′ TAAUTTATGTTTCCTATAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U – 8	5′	7	5′ TAAATACAAAGGATATCAGGUGGCCCCCGCTGAATTGGAAT 3′
			3′ TAATTTATGTTTCCUATAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U – 6	5′	5	5′ TAAATACAAAGGATATCAGGUGGCCCCCGCTGAATTGGAAT 3′
			3′ TAATTTATGTTTCCTAUAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U – 1	5′	0	5′ TAAATACAAAGGATAUCAGGTGGCCCCCGCTGAATTGGAAT 3′
			3′ TAATTTATGTTTCCTAUAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U + 1	3′	0	5′ TAAATACAAAGGAUATCAGGTGGCCCCCGCTGAATTGGAAT 3′
			3′ TAATTTATGTTTCCTAUAGTCCACCGGGGGCGACTTAACCTTAGC 5′
U + 8	3′	7	5′ TAAAUACAAAGGATATCAGGTGGCCCCCGCTGAATTGGAAT 3′
			3′ TAATTTATGTTTCCUATAGTCCACCGGGGGCGACTTAACCTTAGC 5′

When the two uracils are positioned 5′ to each other, the name is designated with a minus and when they are 3′ to each other, the name is designated with a plus. The number in the name designates the nucleotide position of the second uracil relative to the first.