Nature Communications (Sep 2021)

Direct photoresponsive inhibition of a p53-like transcription activation domain in PIF3 by Arabidopsis phytochrome B

  • Chan Yul Yoo,
  • Jiangman He,
  • Qing Sang,
  • Yongjian Qiu,
  • Lingyun Long,
  • Ruth Jean-Ae Kim,
  • Emily G. Chong,
  • Joseph Hahm,
  • Nicholas Morffy,
  • Pei Zhou,
  • Lucia C. Strader,
  • Akira Nagatani,
  • Beixin Mo,
  • Xuemei Chen,
  • Meng Chen

DOI
https://doi.org/10.1038/s41467-021-25909-5
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 16

Abstract

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Photoactivated phytochrome B regulates gene expression by interacting with PIF transcription factors. Here the authors show that PIF3 contains a p53-like transcription activation domain (AD) and that PHYB can directly suppress PIF3 transactivation activity by binding adjacent to the AD.