Phosphoproteomic analysis of ethylene-regulated protein phosphorylation in etiolated seedlings of Arabidopsis mutant ein2 using two-dimensional separations coupled with a hybrid quadrupole time-of-flight mass spectrometer.

Abstract excerpt

Ethylene regulates a variety of stress responses and developmental adaptation in plants. In the present study, the phosphoproteomics is adopted to investigate the differential protein phosphorylation by ethylene in Arabidopsis ethylene-insensitive 2 (ein2) mutant. A total of 224 phosphopeptides were identified, of which 64 phosphopeptides were detected three or more times. Ethylene induces a general reduction in...

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