【摘 要】
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Ethylene gas is essential for many developmental processes and stress responses in plants.ETHYLENE INSENSITIVE2 (EIN2), an NRAMP-like integral membrane protein, plays an essential role in ethylene sig
【机 构】
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Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037 USA
【出 处】
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21st Conference of the International Plant Growth Substances
论文部分内容阅读
Ethylene gas is essential for many developmental processes and stress responses in plants.ETHYLENE INSENSITIVE2 (EIN2), an NRAMP-like integral membrane protein, plays an essential role in ethylene signaling but its function remains enigmatic.Here we report that phosphorylation-regulated proteolytic processing of EIN2 triggers its endoplasmic reticulum (ER)-nucleus translocation, which is essential for ethylene signaling and response in Arabidopsis.Without ethylene, or in ethylene receptor mutants, ER-tethered EIN2 shows CTR1 kinase-dependent phosphorylation.
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