Immunopurification and Mass Spectrometry Identifies Protein Phosphatase 2A （PP2A） and BIN2/GSK3 as Regulators of AKS Transcription Factors in Arabidopsis  

作　　者：Bu, Shuo-Lei Liu, Chao Liu, Ning Zhao, Ji-Long Ai, Lian-Feng Chi, Hao Li, Kathy L. Chien, Chih-Wei Burlingame, Alma L. Zhang, Sheng-Wei Wang, Zhi-Yong 

机构地区：[1]Hebei Normal Univ, Hebei Collaborat Innovat Ctr Cell Signaling, Hebei Key Lab Mol & Cellular Biol, Coll Life Sci, Shijiazhuang 050024, Hebei, Peoples R China [2]Carnegie Inst Sci, Dept Plant Biol, 290 Panama St, Stanford, CA 94305 USA [3]Chinese Acad Sci, Key Lab Intelligent Informat Proc, Inst Comp Technol, Beijing 100190, Peoples R China [4]Univ Calif San Francisco, Dept Pharmaceut Chem, San Francisco, CA 94158 USA

出　　处：《Molecular Plant》2017年第2期345-348,共4页分子植物（英文版）

摘　　要：Dear Editor ABA induces the phosphorylation of three basic helix-loop-helix （bHLH） transcription factors, called AKSs （ABA-responsive ki- nase substrates; AKS1, AKS2, and AKS3）. The unphosphorylated AKSs facilitate stomatal opening through promoting the tran- scription of genes encoding inwardly rectifying K＋ channels （Takahashi et al., 2013）. AKS1 and AKS3 are also regulators of flowering （Ito et al., 2012）. However, the kinases and phosphatases that directly control the phosphorylation status of AKSs in vivo have not been fully characterized. Here,Dear Editor ABA induces the phosphorylation of three basic helix-loop-helix （bHLH） transcription factors, called AKSs （ABA-responsive ki- nase substrates; AKS1, AKS2, and AKS3）. The unphosphorylated AKSs facilitate stomatal opening through promoting the tran- scription of genes encoding inwardly rectifying K＋ channels （Takahashi et al., 2013）. AKS1 and AKS3 are also regulators of flowering （Ito et al., 2012）. However, the kinases and phosphatases that directly control the phosphorylation status of AKSs in vivo have not been fully characterized. Here,

分 类 号：Q753[生物学—分子生物学] X520.322.5[环境科学与工程—环境工程]