From: Conformational changes and loose packing promote E. coli Tryptophanase cold lability
Trpase | Specific activity 25°C | (Units/mg) 2°C |
---|---|---|
wt | 45.7 ± 2.5 | 29.7 ± 1.7 |
W330F | 42.8 ± 3.2 | 5.0 ± 1.4 |
C298S | 36.9 ± 2.9 | 3.7 ± 0.8 |
Y74F* | 0.2 ± 0.05 | 0.08 ± 0.03 |