Table 1.

Rates of potassium permanganate reactivity

Nucleotide Position	Apparent rate (s−1)		Percentage of total amplitude
	kA	kB	A	B
Wild-type T7A1 promoter at 37°C
m12	0.6 ± 0.2	0.049 ± 0.009	45	55
m10	0.7 ± 0.2	0.046 ± 0.008	47	53
m6	0.8 ± 0.2	0.036 ± 0.006	47	53
m4	0.35 ± 0.07	0.025 ± 0.004	49	51
p1	1.0 ± 0.2	0.019 ± 0.004	52	48
Consensus –10 T7A1 promoter at 37°C
m12	0.8 ± 0.3	0.025 ± 0.006	37	63
m4	0.7 ± 0.2	0.018 ± 0.006	48	52