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Photomorphogenesis: A molecular brake on PIF4
1Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA.
Abstract:
A new study characterizes an E3 ubiquitin ligase, LONG PETIOLE 1 (LOP1), as a missing piece in the phytochrome B (phyB)-PIF4 signaling cascade. LOP1 and phyB mutually stabilize each other and restrict PIF4 through proteasomal degradation, resulting in optimized plant growth and development.
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