Table 3.

GTP cyclohydrolase II activity in the Pichia guilliermondii wild-type strain and mutants Δfes1–77, Δvma1–17 and Δfra1–45

Strains of P. guilliermondii	GTP cyclohydrolase II activity (μU mg−1 protein)
R-66	8.2 ± 0.9
Δfes1–77	7.6 ± 0.8
Δvma1–17	15.3 ± 1.1
Δfra1–45	40.6 ± 3.5