Table 3.

Resistance of Taq mutants to blood and NaCl^*.

Enzyme	EDTA blood (%)	Heparinized blood (%)	NaCl (mM)
Taq (wt)	<1	<1	25
Taq 42	60	10	100
Taq 3B	50	10	100
Taq 2C2	65	25	100
Taq 1C2	60	30	100
E507K	45	2	100
F749I	15	2	25
V155I	15	<2	25
G59W	15	2	10

^*The values represent the highest inhibitor concentration beyond which PCR amplification is inhibited.