Fig. 1 in Cytochrome P450 catalyses the 29-carboxyl group formation of celastrol

Fig. 1. The proposed carboxyl group formation of celastrol at the C-29 position and carboxyl group formation of β-amyrin at C-30 position by other cytochrome P450s. The red dashed arrows indicate one or multiple proposed step reactions, and the black solid arrow indicates a biosynthetic reaction catalysed by known CYP450 genes. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)Published as part of Zhou, Jiawei, Hu, Tianyuan, Liu, Yuan, Tu, Lichan, Song, Yadi, Lu, Yun, Zhang, Yifeng, Tong, Yuru, Zhao, Yujun, Su, Ping, Wu, Xiaoyi, Huang, Luqi & Gao, Wei, 2021, Cytochrome P450 catalyses the 29-carboxyl group formation of celastrol, pp. 1-10 in Phytochemistry (112868) 190 on page 2, DOI: 10.1016/j.phytochem.2021.112868, http://zenodo.org/record/825807