Article
Degradation of the ABA co-receptor ABI1 by PUB12/13 U-box E3 ligases.
Nature communications - 20 Oct 2015
Kong Lingyao, Cheng Jinkui, Zhu Yujuan, Ding Yanglin, Meng Jingjing, Chen Zhizhong, Xie Qi, Guo Yan, Li Jigang, Yang Shuhua, Gong Zhizhong
Abstract excerpt
Clade A protein phosphatase 2Cs (PP2Cs) are abscisic acid (ABA) co-receptors that block ABA signalling by inhibiting the downstream protein kinases. ABA signalling is activated after PP2Cs are inhibited by ABA-bound PYR/PYL/RCAR ABA receptors (PYLs) in Arabidopsis. However, whether these PP2Cs are regulated by other factors remains unknown. Here, we report that ABI1 (ABA-INSENSITIVE 1) can interact with the U-box...
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