A one-pot enzymatic totalsynthesis of angucycline antibiotic rabelomycin was accomplished, starting from acetyl-CoA and malonyl-CoA, using a mixture of polyketide synthase (PKS) enzymes of the gilvocarcin, ravidomycin, and jadomycin biosynthetic pathways. The in vitro results were compared to in vivo catalysis using analogous sets of enzymes.
Characterization of JadH as an FAD- and NAD(P)H-Dependent Bifunctional Hydroxylase/Dehydrase in Jadomycin Biosynthesis
作者:Yihua Chen、Keqiang Fan、Yongzhi He、Xinping Xu、Yanfeng Peng、Tingting Yu、Cuijuan Jia、Keqian Yang
DOI:10.1002/cbic.201000178
日期:——
Biosynthesis of angucyclines: We characterized an accessory enzyme, JadH as a FAD and NAD(P)H‐dependent bifunctionalhydroxylase/dehydrase involved in jadomycinbiosynthesis by identifying its real product. Homologues of JadH have been found in all cloned angucycline biosynthetic clusters and were proposed to have similar functions as JadH.
Enzymatic Total Synthesis of Defucogilvocarcin M and Its Implications for Gilvocarcin Biosynthesis
作者:Pallab Pahari、Madan K. Kharel、Micah D. Shepherd、Steven G. van Lanen、Jürgen Rohr
DOI:10.1002/anie.201105882
日期:2012.1.27
Teamwork: DefucogilvocarcinM (1, see scheme) was synthesized in a one‐pot, enzymatic reaction from acetyl‐CoA and malonyl‐CoA by a combination of 15 enzymes obtained from E. coli as well as the gilvocarcin, jadomycin, and ravidomycin biosynthetic pathways. The mixture of enzymes was systematically reduced and varied to further delineate the sequence of reactions in the complex, post‐polyketide steps
Biochemical and Structural Studies of the Carminomycin 4-<i>O</i>-Methyltransferase DnrK
作者:Elnaz Jalali、Fengbin Wang、Brooke R. Overbay、Mitchell D. Miller、Khaled A. Shaaban、Larissa V. Ponomareva、Qing Ye、Hoda Saghaeiannejad-Esfahani、Minakshi Bhardwaj、Andrew D. Steele、Christiana N. Teijaro、Ben Shen、Steven G. Van Lanen、Qing-Bai She、S. Randal Voss、George N. Phillips、Jon S. Thorson
DOI:10.1021/acs.jnatprod.3c00947
日期:2024.4.26
4-O-methyltransferase DnrK are described, with an emphasis on interrogating the acceptor substrate scope of DnrK. Specifically, the evaluation of 100 structurally and functionally diverse naturalproducts and naturalproduct mimetics revealed an array of pharmacophores as productive DnrK substrates. Representative newly identified DnrK substrates from this study included anthracyclines, angucyclines, anthraquinone-fused