Article
Light regulates COP1-mediated degradation of HFR1, a transcription factor essential for light signaling in Arabidopsis.
The Plant cell - 1 Mar 2005
Yang Jianping, Lin Rongcheng, Sullivan James, Hoecker Ute, Liu Bolin, Xu Ling, Deng Xing Wang, Wang Haiyang
Abstract excerpt
Arabidopsis thaliana seedlings undergo photomorphogenesis in the light and etiolation in the dark. Long Hypocotyl in Far-Red 1 (HFR1), a basic helix-loop-helix transcription factor, is required for both phytochrome A-mediated far-red and cryptochrome 1-mediated blue light signaling. Here, we report that HFR1 is a short-lived protein in darkness and is degraded through a 26S proteasome-dependent pathway. Light,...
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