Table 1. Oligonucleotides sequence and their molar extinction coefficients used in this study.

ID	Name	Sequencea	ϵ (M−1cm−1) 260 nmb	Bufferc
1	AT Duplex	5′-ATA TAT ATC CCC ATA TAT AT-3′	205700	A
2	GC Duplex	5′-GCG CGC GCT TTT GCG CGC GC-3′	166300	A
3	A/T Duplex	5′-AAA AAA AAC CCC TTT TTT TT-3′	191300	A
4	H-Tel Duplex	5′-GGG TTA GGG TTT TCC CTA ACC C-3′	202200	A
5	AT Triplex	5′-AAA AAA AAC CCC TTT TTT TTC CCC TTT TTT TT-3′	284900	C
6	GC Triplex	5′-CCC CCC CCT TTT GGG GGG GGT TTT CCC CCC CC-3′	261600	B
7	H-Tel i-Motif	5′-CCC TAA CCC TAA CCC TAA CCC T-3′	193700	B
8	H-Tel Quadruplex	5′-AGG GTT AGG GTT AGG GTT AGG G-3′	228500	A
9	c-Myc Quadruplex	5′-TGA GGG TGG GTA GGG TGG GTA A-3′	228700	A
10	c-Myc i-Motif	5′-TTC CCC ACC CTC CCC ACC CTC CCC TAA-3′	222200	B
11	A/U RNA duplex	5′-rArArA rArArA rArArC rCrCrC rUrUrU rUrUrU rUrU-3′	202900	C
12	DNA-RNA duplex	5′-GGG TTA GGG TTT TrCrC rCrUrA rArCrC rC-3′	202900	A

^aThe strand orientation is 5′ to 3′ from left to right, and ‘r’ denotes a ribonucleotide.

^bMolar nearest neighbor extinction coefficients of the single-strand at 260 nm.

^cBuffer conditions: A = 6 mM K₂HPO₄, 4 mM KH₂PO₄, 15 mM KCl, pH 7. 2; B = 1 mM K₂HPO₄, 9 mM KH₂PO₄, 15 mM KCl, pH 6.2; C = 6 mM K₂HPO₄, 4 mM KH₂PO₄, 15 mM KCl, 1 mM MgCl₂, pH 7. 2.