HYPK Interacts with COP1 and Enhances Its Activity to Repress Photomorphogenesis in Arabidopsis.
Plants sense light through photoreceptors to switch from skotomorphogenesis in darkness to photomorphogenesis upon light exposure. This transition is centrally governed by the CONSTITUTIVE PHOTOMORPHOGENESIS1 (COP1)/SUPPRESSOR OF PHYA-105 (SPA) E3 ubiquitin ligase complex, which targets photomorphogenesis-promoting fac...