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. 2003 May 15;100(11):6410–6415. doi: 10.1073/pnas.1131003100

Table 1. Oligonucleotide substrates.

Duplex Sequence Specification
30/30 5′-AGCGTAGCACTGGGCTGCTGAACTGTGCTG-3′ 30-bp cognate substrate for Bfil (recognition sequence underlined); Bio-30/30 has the same sequence, as shown, but with a biotin tag at the 5′ end of its top strand
Bio-30/30 3′-TCGCATCGTGACCCGACGACTTGACACGAC-5′
30/30(S) 5′-AGCGTAGCACTGGGCTGC-TGAACTGTGCTG-3′ As 30/30 except for a phosphorothioate linkage at the position indicated by s, the site of bottom-strand cleavage by Bfil
3′-TCGCATCGTGACCCGACGsACTTGACACGAC-5′
30(S)/30 5′-AGCGTAGCACTGGGCTGCTsGsAsACTGTGCTG-3′ As 30/30 except for phosphorothioate linkages at the three positions indicated by s, the sites of top-strand cleavage by Bfil
3′-TCGCATCGTGACCCGACGA-C-T-TGACACGAC-5′
30/(18P_12) 5′-AGCGTAGCACTGGGCTGC-TGAACTGTGCTG-3′ Duplex made from three oligos to give a nicked DNA akin to the Bfil product on the bottom strand of 30/30; the nucleotide 5′ to the nick is phosphorylated, to mimic the terminus left by Bfil
3′-TCGCATCGTGACCCGACGp ACTTGACACGAC-5′
30/18P 5′-AGCGTAGCACTGGGCTGCTGAACTGTGCTG-3′ Analogous to 30/(18P_12) except made from two oligos to give a 3′-tailed duplex
3′-TCGCATCGTGACCCGACGp-5′
30/(18P_dd12) 5′-AGCGTAGCACTGGGCTGC-TGAACTGTGCTG-3′ As 30/(18P_12) except that the nucleotide 3′ to the nick is replaced by a dideoxynucleotide (indicated by dd)
3′-TCGCATCGTGACCCGACGpddACTTGACACGAC-5′
30/(18Δ_12) 5′-AGCGTAGCACTGGGCTGC-TGAACTGTGCTG-3′ As 30/(18P_12), except that the nucleotide 5′ to the nick is not phosphorylated
3′-TCGCATCGTGACCCGACGOH ACTTGACACGAC-5′