1.1.1.200 6 10 N- and the C-term tagged enzymes. Both recombinant enzymes similarly show optimal activity in a broad pH range in the direction of D-glucose 6-phosphate reduction, and a narrow range (pH 9.0-10.0) in the opposite oxidative direction 696497 1.1.1.200 8.5 10.1 about 50% of activity maximum at pH 8.5 and 10.1 347839