A phyB-PIF1-SPA1 kinase regulatory complex promotes photomorphogenesis in Arabidopsis

Inyup Paik; Fulu Chen; Vinh Ngoc Pham; Ling Zhu; Jeong-Il Kim; Enamul Huq

doi:10.1038/s41467-019-12110-y

Nature Communications (Sep 2019)

A phyB-PIF1-SPA1 kinase regulatory complex promotes photomorphogenesis in Arabidopsis

Inyup Paik,
Fulu Chen,
Vinh Ngoc Pham,
Ling Zhu,
Jeong-Il Kim,
Enamul Huq

Affiliations

Inyup Paik: Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin
Fulu Chen: Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin
Vinh Ngoc Pham: Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin
Ling Zhu: Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin
Jeong-Il Kim: Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin
Enamul Huq: Department of Molecular Biosciences and The Institute for Cellular and Molecular Biology, The University of Texas at Austin

DOI: https://doi.org/10.1038/s41467-019-12110-y
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 17

Abstract

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SPA proteins repress plant photomorphogenesis by promoting the E3 ligase activity of COP1. Here the authors show that SPAs also act as serine/threonine kinase and are required for phyB-mediated light-dependent phosphorylation and degradation of the PIF1 transcription factor.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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