CRY2–COP1–HY5–BBX7/8 module
Multi-Component SwitchThe CRY2–COP1–HY5–BBX7/8 module is an endogenous Arabidopsis thaliana blue-light-responsive regulatory switch that controls cold acclimation. Under blue light and cold conditions, CRY2-mediated signaling modulates COP1–HY5 interactions and is associated with BBX7/8-dependent regulation to enhance freezing tolerance.