Research Article

Pre-Steady-State Kinetic Analysis of Truncated and Full-Length Saccharomyces cerevisiae DNA Polymerase Eta

Table 6

Comparison of base substitution fidelity for various DNA polymerases.

PolymerasePolymerase FamilyFidelit y a 𝐾 𝑑 Differenc e b 𝑘 𝑝 Differenc e b G (kcal/mol ) c

Truncated yPol 𝜂 d Y3.7 × 10-4 to 2.9 × 10-23 to 685 to 2201.6
Dpo 4 e Y1.5 × 10-4 to 3.2 × 10-31 to 18240 to 17000.95
rPol 𝛽 f X1.1 × 10-5 to 5.9 × 10-435 to 34228 to 7083.0
PolB1 e x o - g B3.5 × 10-6 to 1.2 × 10-4109 to 9184 to 5893.7
hPol 𝛾 h A4.6 × 10-7 to 2.9 × 10-442 to 90039 to 120003.4

a C alculated as ( 𝑘 𝑝 / 𝐾 𝑑 ) i n c o r r e c t / [ ( 𝑘 𝑝 / 𝐾 𝑑 ) c o r r e c t + ( 𝑘 𝑝 / 𝐾 𝑑 ) i n c o r r e c t ] . b C alculated as defined in equation (8). c C alculated using equation (7). d A t 23°C (this work). e A t 37°C [50]. f A t 37°C [66]. g A t 37°C, excluding the fidelity contribution from the 3 5 exonuclease activity [67]. h A t 37°C, excluding the fidelity contribution from the 3 5 exonuclease activity [68].