Team:British Columbia/Notebook/Week 12

Characterization: Limonene Synthase

Daisy is starting the expression of the Limonene synthase (which produces +limonene) in C41 DE3. Daisy has been bugging Chris Keeling a lot about the expression conditions. It turns out that Daisy needs to do an in vitro assay for limonene synthase (adding GPP + purified enzyme). The only problem is there is no tag for a purification step. So it will most likely be the limonene synthase + a whole bunch of other enzymes + GPP (substrate needed to convert to limonene).

This is potentially problematic since it is much harder to do an in vitro assay without a purification step. Daisy originally planned to do a 500 mL expression, as suggested by Bohlmann Lab members, which is what they usually do. However, Daisy is now going to do a 2 L or 3 L expression. It will be better to have more enzyme rather than less for the in vitro assay.