Discovery of 3-Formyl-Tyrosine Metabolites from <i>Pseudoalteromonas tunicata</i> through Heterologous Expression
作者:Leah C. Blasiak、Jon Clardy
DOI:10.1021/ja9097862
日期:2010.1.27
on the presence of canonical nonribosomal polypeptide synthetase (NRPS) or polyketide synthase (PKS) domains. Recently, other condensation enzymes, such as the ATP-grasp ligases, have been recognized as important players in natural product biosynthesis. In this study, sequence based searching for homologues of DdaF, the ATP-grasp amide ligase from dapdiamide biosynthesis, led to the identification of
天然产物基因簇的基因组挖掘和鉴定通常依赖于经典非核糖体多肽合成酶 (NRPS) 或聚酮合酶 (PKS) 域的存在。最近,其他缩合酶,如 ATP-grasp 连接酶,已被认为是天然产物生物合成中的重要参与者。在这项研究中,基于序列搜索 DdaF(来自 dapdiamide 生物合成的 ATP-grasp 酰胺连接酶)的同源物,导致在 Pseudoalteromonas tunicata 中鉴定了以前未注释的生物合成基因簇。该簇在大肠杆菌中的异源表达允许两种新的 3-甲酰基酪氨酸代谢物的生产和结构测定。