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Cloning, Expression and Functioning of phlD Genes from Pseudomonas Fluorescens
Pages: 465-470
Year: Issue:  5
Journal: Transactions of Beijing Institute of Technology

Keyword:  phlD基因基因克隆重组大肠杆菌间苯三酚;
Abstract: 对荧光假单胞菌合成2,4-二乙酰基间苯三酚(2,4-DAPG)操纵子的关键基因phlD进行了克隆,并采用E.coli BL21(DE3)/pET28a(+)对phlD进行了诱导表达,其指导合成的PhlD蛋白融合表达后为42000Da.生物信息学方法分析PhlD具有PKSⅢ型聚酮合酶的结构及催化聚酮缩合、酰基转移反应的功能,并推测PhlD催化底物丙二酸单酰辅酶A经过聚酮缩合途径合成间苯三酚及其衍生物.对重组菌进行了摇瓶发酵并检测出发酵液中确有产物间苯三酚的合成.
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