The activities of the E3 ubiquitin ligase COP1/SPA, a
Jun 1, 2017 · Downstream of photoreceptors, the E3 ubiquitin ligase COP1/SPA is a key repressor of photomorphogenesis which targets many positive regulators of light signaling, …
Photoreceptor-mediated regulation of the COP1/SPA E3 …
Oct 1, 2018 · Photoreceptors repress COP1/SPA activity through common and distinct mechanisms. Mechanisms include COP1 nuclear exclusion, COP1-SPA separation, and SPA …
Illuminating the COP1/SPA Ubiquitin Ligase: Fresh Insights Into Its ...
Discovered originally in Arabidopsis thaliana, COP1 acts in a complex with SPA proteins as a central repressor of light-mediated responses in plants. By ubiquitinating and promoting the …
SPA Proteins Affect the Subcellular Localization of COP1 in the COP1 …
SPA proteins are essential cofactors of COP1, but their exact role in the COP1/SPA complex is thus far unknown. To unravel a potential role of SPA proteins in COP1 nucleocytoplasmic …
COP1/SPA ubiquitin ligase complexes repress anthocyanin …
Here, we show that mutations in the key repressor of light signaling, the COP1/SPA complex, cause a strong hyperaccumulation of anthocyanins not only under normal light but also under …
The activities of the E3 ubiquitin ligase COP1/SPA, a key ... - PubMed
Downstream of photoreceptors, the E3 ubiquitin ligase COP1/SPA is a key repressor of photomorphogenesis which targets many positive regulators of light signaling, mainly …
Light and the E3 ubiquitin ligase COP1/SPA control the protein ...
Feb 20, 2013 · Repression of anthocyanin accumulation in darkness requires the CONSTITUTIVELY PHOTOMORPHOGENIC1/SUPPRESSOR OF PHYA-105 (COP1/SPA) …
SPA Proteins Affect the Subcellular Localization of COP1 in
To unravel a potential role of SPA proteins in COP1 nucleocytoplasmic partitioning, we monitored the subcellular localization of COP1 in a spa1234 quadruple mutant (spaQn). We analyzed a …
Conversion from CUL4-based COP1–SPA E3 apparatus to UVR8–COP1–SPA …
Sep 4, 2013 · The reorganization from the CUL4–DDB1–COP1–SPA E3 apparatus to UVR8–COP1–SPA complex(es) upon UV-B irradiation achieves a functional switch of COP1 …
Illuminating the COP1/SPA Ubiquitin Ligase: Fresh Insights Into Its ...
Mar 23, 2021 · Discovered originally in Arabidopsis thaliana, COP1 acts in a complex with SPA proteins as a central repressor of light-mediated responses in plants. By ubiquitinating and …