A 7-dimethylallyl tryptophan synthase from a fungal Neosartorya sp.: Biochemical characterization and structural insight into the regioselective prenylation
摘要:
A putative 7-dimethylallyl tryptophan synthase (DMATS) gene from a fungal Neosartorya sp. was cloned and overexpressed as a soluble His(6)-fusion protein in Escherichia coli. The enzyme was found to catalyze the prenylation of L-tryptophan at the C7 position of the indole moiety in the presence of dimethylallyl diphosphate; thus, it functions as a 7-DMATS. In this study, we describe the biochemical characterization of 7-DMATS from Neosartorya sp., referred to as 7-DMATS(Neo), and the structural basis of the regioselective prenylation of L-tryptophan at the C7 position by comparison of the three-dimensional structural models of 7-DMATS(Neo) with FgaPT2 (4-DMATS) from Aspergillus fumigatus. (C) 2014 Elsevier Ltd. All rights reserved.
Characterisation of 6-DMATS<sub>Mo</sub> from Micromonospora olivasterospora leading to identification of the divergence in enantioselectivity, regioselectivity and multiple prenylation of tryptophan prenyltransferases
作者:Julia Winkelblech、Xiulan Xie、Shu-Ming Li
DOI:10.1039/c6ob01803c
日期:——
secondary metabolites including indole derivatives usually demonstrate improved biological and pharmacological activities, which make them promising candidates for drug discovery and development. The transfer reactions of a prenyl moiety from a prenyl donor, e.g. dimethylallyldiphosphate (DMAPP), to an acceptor is catalysed by prenyltransferases. One special group of such enzymes uses DMAPP and tryptophan
A 7-dimethylallyl tryptophan synthase from a fungal Neosartorya sp.: Biochemical characterization and structural insight into the regioselective prenylation
A putative 7-dimethylallyl tryptophan synthase (DMATS) gene from a fungal Neosartorya sp. was cloned and overexpressed as a soluble His(6)-fusion protein in Escherichia coli. The enzyme was found to catalyze the prenylation of L-tryptophan at the C7 position of the indole moiety in the presence of dimethylallyl diphosphate; thus, it functions as a 7-DMATS. In this study, we describe the biochemical characterization of 7-DMATS from Neosartorya sp., referred to as 7-DMATS(Neo), and the structural basis of the regioselective prenylation of L-tryptophan at the C7 position by comparison of the three-dimensional structural models of 7-DMATS(Neo) with FgaPT2 (4-DMATS) from Aspergillus fumigatus. (C) 2014 Elsevier Ltd. All rights reserved.