,Substrate-Induced Degradation of the α/β-Fold Hydrolase KARRIKIN INSENSITIVE2 Requires a Functional

• 作 者: Mark T.Waters Adrian Scaffidi Gavin Flematti Steven M.Smith
• 机 构: Australian Research Council Centre of Excellence for Plant Energy Biology,The University of Western
• 出 处: 分子植物（英文版）
• 发表日期: 2015年5期
• 关键词: @@

Dear Editor,Derived from but vegetation,karrikins (KAR) are butenolide chemicals that stimulate seed germination and enhance seedling responses to light.Genetic and biochemical studies have identified KARRIKIN INSENSITIVE2 (KAI2) as a putative karrikin receptor protein (reviewed by Waters et al.,2014).KAI2 is an α/β-fold hydrolase and a paralog of DWARF14 (D14;AtD14 in Arabidopsis),and both possess the conserved catalytic triad of Ser,His,and Asp residues typical of this class of hydrolytic enzymes.