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What is CTR1 Phosphorylates EIN2 in Ethylene Signaling about?

This study found that the protein kinase CTR1 directly phosphorylates the cytosolic domain of EIN2. Mutations that block EIN2 phosphorylation result in constitutive nuclear localization of its cytosolic domain and activation of ethylene responses in Arabidopsis. This suggests CTR1 phosphorylation of EIN2 normally prevents ethylene signaling, while inhibition of CTR1 upon ethylene perception allows cleavage and nuclear localization of the EIN2 domain, transmitting the ethylene signal to transcription factors

Author

MS

Language

EN