Telomeric G-Quadruplexes: From Human to Tetrahymena Repeats

Table 2

Influence of PEG-200 on the melting temperatures of DNA oligomers in the presence of potassium and sodium ions.

Oligomer	(°C) in 50 mM KCl + PEG-200				(°C) in 50 mM NaCl + PEG-200
	0%	15%	30%	50%	0%	15%	30%	50%
	295/265	295/265	295/265	295/265	295/265	295/265	295/265	295/265
HTR	63.2/62.9	63.2/ND	78.8/ND	ND/89.8	50.4/ND	51.2/ND	52.8/ND	64.0/ND
HTR1	71.8/73.1	71.4/76.3	64.3/83.1	ND/>95	55.7/ND	58.9/ND	61.5/ND	64.4/ND
HTR2	65.2/65.9	64.2/72.1	ND/79.6	ND/>95	51.2/ND	54.3/ND	58.1/ND	62.7/ND
HTR3	67.8/68.6	69.3/75.3	ND/81.7	ND/>95	50.6/ND	54.3/ND	58.7/ND	64.8/71.6
HTR1,2	69.5/70.5	ND/76.9	ND/83.2	ND/>95	55.9/ND	59.1/ND	62.8/ND	65.3/72.1
HTR1,3	72.2/71.5	70.5/79.1	ND/86.4	ND/>95	53.7/ND	56.2/59.8	60.1/63.2	ND/73.5
HTR2,3	81.3/76.9	ND/79.7	ND/85.2	ND/>95	53.3/ND	57.3/ND	59.9/63.0	64.4/71.0
HTR0,1,3	73.0/80.0	ND/79.0	ND/87.9	ND/>95	52.5/ND	56.3/60.7	60.1/63.3	ND/72.7
HTR0,2,3	70.7/72.7	ND/77.6	ND/>95	ND/>95	51.8/54.5	56.0/51.1	59.4/60.2	ND/73.8
HTR1,2,3	73.9/77.8	ND/83.9	ND/88.6	ND/>100	56.4/ND	59.0/ND	61.2/64.0	ND/75.7
THR	83.1/ND	87.7/ND	>95	ND	57.4/ND	59.7/ND	ND/66.8	ND