Table 2.

Percentages of extended primers with NTPs at the first position next to the 3′ terminal of each primer in 0 or 20 wt% PEG200.

Substrate	Primer
	Primer A		Primer C		Primer G (Matched)		Primer U
	(-)PEG200	( +)PEG200	(−)PEG200	( +)PEG200	(−)PEG200	( +)PEG200	(−)PEG200	( +)PEG200
ATP	0a	0a	30 ± 2.2	39 ± 1.4	9.0 ± 2.2b	25 ± 8.1b	8.8 ± 0.6	13 ± 1.7
CTP	7.5 ± 1.2	18 ± 1.7	15 ± 1.7	30 ± 0.6	29 ± 11b	35 ± 13b	13 ± 0.9	25 ± 1.2
GTP	21 ± 7.0	28 ± 5.0	33 ± 5.2	56 ± 10	23 ± 12b	33 ± 20b	18 ± 1.1	34 ± 7.1
UTP (Matched)	8.4 ± 1.4	17 ± 3.4	12 ± 0.7	14 ± 1.5	50 ± 14b	37 ± 20b	16 ± 4.1	17 ± 4.1

^aNo bands for extended primers were detectable.

^bData were taken from the reference²⁶.