Table 2. Summary of processivity analyses.

Enzyme	Microscopic processivity (PI)a	Average primer extension length (nt) [1/(1 – PI)]a
Taq(Δ289)	0.64 ± 0.09	2.9 ± 0.7
S-Taq(Δ289)	0.980 ± 0.002	51 ± 6
Taq	0.95 ± 0.01	22 ± 3
S-Taq	0.99 ± 0.02	104 ± 17
S(G)-Taq(Δ289)	0.91 ± 0.01	11 ± 1
S(V)-Taq(Δ289)	0.92 ± 0.01	12 ± 2
S(E)-Taq(Δ289)	0.85 ± 0.04	7 ± 2
Pfu	0.84 ± 0.01	6.4 ± 0.5
Pfu-S	0.982 ± 0.001	55 ± 3

^aData were analyzed as described in Materials and Methods. The standard deviation was calculated based on results from multiple sets of data.