Table 1.
NTP | kcat(min−1) | km(mM) | kcat/km(μM−1min−1) | Misincorporation Frequencya |
---|---|---|---|---|
Template A | ||||
UTP | 0.0026 ± 0.0001 | 0.035 ± 0.007 | 7.28 × 10−5 | |
ATP | 0.00028 ± 0.00003 | 0.021 ± 0.002 | 1.35 × 10−5 | 1.85 × 10−1 |
CTP | 0.00016 ± 0.00003 | 0.068 ± 0.02 | 2.34 × 10−6 | 3.21 × 10−2 |
GTP | 0.000075 ± 0.00001 | 0.12 ± 0.06 | 6.09 × 10−7 | 8.36 × 10−3 |
Template G | ||||
CTP | 0.0033 ± 0.0001 | 0.021 ± 0.002 | 1.60 × 10−4 | |
ATP | 0.00011 ± 0.00002 | 0.0036 ± 0.001 | 2.90 × 10−5 | 1.81 × 10−1 |
UTP | 0.00024 ± 0.00001 | 0.025 ± 0.006 | 9.00 × 10−6 | 5.61 × 10−2 |
GTP | 0.00011 ± 0.00002 | 0.15 ± 0.09 | 7.19 × 10−7 | 4.49 × 10−3 |
Template U | ||||
ATP | 0.00045 ± 0.00003 | 0.0041 ± 0.001 | 1.11 × 10−4 | |
UTP | 0.000029 ± 0.00001 | 0.031 ± 0.04 | 9.18 × 10−7 | 8.27 × 10−3 |
CTP | 0.000033 ± 0.000007 | 0.13 ± 0.09 | 2.57 × 10−7 | 2.31 × 10−3 |
GTP | 0.000072 ± 0.00002 | 0.081 ± 0.03 | 8.96 × 10−7 | 8.07 × 10−3 |
Template C | ||||
GTP | 0.0043 ± 0.0002 | 0.020 ± 0.002 | 2.09 × 10−4 | |
ATP | 0.000072 ± 0.00002 | 0.0057 ± 0.003 | 1.27 × 10−5 | 6.08 × 10−2 |
CTP | 0.000043 ± 0.000002 | 0.046 ± 0.006 | 9.32 × 10−7 | 4.46 × 10−3 |
UTP | NDb | NDb | – | – |
Misincorporation frequency=(kcat/km)incorrect rNTP/(kcat/km)correct rNTP.68
ND: signal not detected.