Design of an in vitro multienzyme cascade system for the biosynthesis of nicotinamide mononucleotide† Cailian Zhou,‡a Jiao Feng,‡a Jing Wang,a Ning Hao,a Xin Wang *a and Kequan Chen a Author affiliations * Corresponding authors a State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China E-mail: cailianzhou@njtech.edu.cn, fengjiao88@njtech.edu.cn,...