Fig. 3.

In vivo selection strategy for threonine aldolase activity based the cleavage of β-phenylserine. The threonine aldolase gene TA is expressed from pBBR2-ta in the Pseudomonas putida KT2440 strain with deletion of inherent TA gene (taPp) (Figure taken with permission from Springer Publisher) (Bulut et al. 2015)