Haihong Chen, Yaohong Wang, Weishan Wang, Ting Cao, Lu Zhang, Zhengduo Wang, Xuran Chi, Tong Shi, Huangwei Wang, Xinwei He, Mindong Liang, Mengxue Yang, Wenyi Jiang, Dongyuan Lv, Jiaming Yu, Guoliang Zhu, Yongtao Xie, Bei Gao, Xinye Wang, Xueting Liu, Youyuan Li, Limin Ouyang, Jingyu Zhang, Huimin Liu, Zilong Li, Yaojun Tong, Xuekui Xia, Gao-Yi Tan, Lixin Zhang
Porphyrins and their derivatives find extensive applications in medicine, food, energy and materials. In this study, we produced porphyrin compounds by combining Rhodobacter sphaeroides as an efficient cell factory with enzymatic catalysis. Genome-wide CRISPRi-based screening in R. sphaeroides identifies hemN as a target for improved coproporphyrin III (CPIII) production, and exploiting phosphorylation of PrrA further improves the production of bioactive CPIII to 16.5 g L-1 by fed-batch fermentation...
June 5, 2024: Nature Biotechnology