Table 1.
ClyA-mediated display of enzymatically active proteins
Construct | Cell surface activity | OMV activity |
---|---|---|
β-lactamase (Bla) | [ΔA486/min] | [ΔA486/min] |
pBAD18-Kan | 0.03 | 0.02 |
pΔss-Bla | 0.47 | 0.98 |
pClyA-Bla | 8.53 | 7.05 |
pBla-ClyA | 1.43 | 1.65 |
Organophosphorus hydrolase (OPH) | [U*1000/OD600] | [U*1000/g total protein] |
pBAD24 | 0.09 | 0.04 |
pOPH | 0.36 | 1.63 |
pClyA-OPH | 11.62 | 81.63 |
pOPH-ClyA | 0.22 | 8.19 |
β-galactosidase (LacZ) | [ΔA420/min] | [ΔA420/min] |
pBAD24 | 0.02 | 0.02 |
pLacZ | 0.02 (7.21)† | 0.03 |
pClyA-LacZ | 0.04 (8.33)† | 0.03 |
Values in parentheses represent activity in the cytoplasmic fraction.
All values represent the average of 3 replicate experiments where the standard error was <5%.