scholarly journals Proteomic Identification of Annexins, Calcium-Dependent Membrane Binding Proteins That Mediate Osmotic Stress and Abscisic Acid Signal Transduction in Arabidopsis

2004 ◽  
Vol 16 (6) ◽  
pp. 1378-1391 ◽  
Author(s):  
Sumin Lee ◽  
Eun Jung Lee ◽  
Eun Ju Yang ◽  
Ji Eun Lee ◽  
Ae Ran Park ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Abscisic Acid ◽  
Osmotic Stress ◽  
Binding Proteins ◽  
Membrane Binding ◽  
Calcium Dependent ◽  
Proteomic Identification

scholarly journals Two Calcium-Dependent Protein Kinases, CPK4 and CPK11, Regulate Abscisic Acid Signal Transduction in Arabidopsis

2007 ◽  
Vol 19 (10) ◽  
pp. 3019-3036 ◽  
Author(s):  
Sai-Yong Zhu ◽  
Xiang-Chun Yu ◽  
Xiao-Jing Wang ◽  
Rui Zhao ◽  
Yan Li ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Abscisic Acid ◽  
Protein Kinases ◽  
Calcium Dependent ◽  
Dependent Protein ◽  
Calcium Dependent Protein Kinases

scholarly journals Two novel brain proteins, CaBP33 and CaBP37, are calcium-dependent phospholipid- and membrane-binding proteins

FEBS Letters ◽  
1990 ◽  
Vol 262 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Rosario Donato ◽  
Ileana Giambanco ◽  
Grazia Pula ◽  
Roberta Bianchi
Keyword(s):  
Binding Proteins ◽  
Membrane Binding ◽  
Brain Proteins ◽  
Calcium Dependent

scholarly journals MAP3Kinase-dependent SnRK2-kinase activation is required for abscisic acid signal transduction and rapid osmotic stress response

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yohei Takahashi ◽  
Jingbo Zhang ◽  
Po-Kai Hsu ◽  
Paulo H. O. Ceciliato ◽  
Li Zhang ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Abscisic Acid ◽  
Osmotic Stress ◽  
Knock Out ◽  
Kinase Activation ◽  
Aba Signal Transduction ◽  
Osmotic Stress Response ◽  
Stress Signal ◽  
Biochemical Analyses

AbstractAbiotic stresses, including drought and salinity, trigger a complex osmotic-stress and abscisic acid (ABA) signal transduction network. The core ABA signalling components are snf1-related protein kinase2s (SnRK2s), which are activated by ABA-triggered inhibition of type-2C protein-phosphatases (PP2Cs). SnRK2 kinases are also activated by a rapid, largely unknown, ABA-independent osmotic-stress signalling pathway. Here, through a combination of a redundancy-circumventing genetic screen and biochemical analyses, we have identified functionally-redundant MAPKK-kinases (M3Ks) that are necessary for activation of SnRK2 kinases. These M3Ks phosphorylate a specific SnRK2/OST1 site, which is indispensable for ABA-induced reactivation of PP2C-dephosphorylated SnRK2 kinases. ABA-triggered SnRK2 activation, transcription factor phosphorylation and SLAC1 activation require these M3Ks in vitro and in plants. M3K triple knock-out plants show reduced ABA sensitivity and strongly impaired rapid osmotic-stress-induced SnRK2 activation. These findings demonstrate that this M3K clade is required for ABA- and osmotic-stress-activation of SnRK2 kinases, enabling robust ABA and osmotic stress signal transduction.

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