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. 2015 Jan 29;54(5):1294–1305. doi: 10.1021/bi501534x

Table 2. Rate and Equilibrium Constants for DNA Base Pair Opening.

  k0 (s–1)a
  DDD DDDm DDDhm DDDf DDDca
C3:G10 1.1 ± 0.06 1.0 ± 0.07 0.95 ± 0.05 0.71 ± 0.03 1.1 ± 0.06
G4:C9 0.57 ± 0.03 0.56 ± 0.1 0.68 ± 0.05 0.39 ± 0.04 0.49 ± 0.04
A5:T8 0.59 ± 0.03 0.73 ± 0.07 0.77 ± 0.03 0.79 ± 0.04 0.59 ± 0.03
A6:T7 0.61 ± 0.03 0.43 ± 0.04 0.36 ± 0.01 0.27 ± 0.03 0.55 ± 0.03
  kop (s–1)
  DDD DDDm DDDhm DDDf DDDca
C3:G10 45 ± 3 90 ± 12 42 ± 5 86 ± 18 64 ± 12
G4:C9 8 ± 0.5 7 ± 0.6 16 ± 2 26 ± 2 4 ± 0.3
A5:T8 40 ± 2 65 ± 2 110 ± 13 222 ± 53 58 ± 5
A6:T7 36 ± 1 29 ± 1 45 ± 2 33 ± 3 44 ± 3
  kcl (×10–7 s–1)
  DDD DDDm DDDhm DDDf DDDca
C3:G10 15 ± 1 25 ± 2 17 ± 1 21 ± 2 20 ± 1
G4:C9 6.7 ± 0.2 9.4 ± 1 13 ± 0.8 9.3 ± 1 6.6 ± 0.1
A5:T8 0.97 ± 0.04 1.9 ± 0.04 1.5 ± 0.05 2.1 ± 0.06 2.3 ± 0.05
A6:T7 0.98 ± 0.09 1.1 ± 0.08 1.6 ± 0.08 1.1 ± 0.05 1.3 ± 0.01
  Kop × 107
  DDD DDDm DDDhm DDDf DDDca
C3:G10 2.9 ± 0.1 3.6 ± 0.1 2.5 ± 0.1 3.8 ± 0.1 3.2 ± 0.08
G4:C9 1.2 ± 0.04 0.75 ± 0.04 1.2 ± 0.06 2.8 ± 0.1 0.6 ± 0.04
A5:T8 41 ± 0.08 35 ± 2 73 ± 6 106 ± 4 34 ± 1
A6:T7 37 ± 5 26 ± 3 29 ± 3 29 ± 2 34 ± 0.9
a

The observed exchange rate without an ammonia catalyst.