AtCRY2-TopBP1 optogenetic DNA damage checkpoint switch
Multi-Component SwitchThe AtCRY2-TopBP1 optogenetic DNA damage checkpoint switch is a fusion of Arabidopsis thaliana cryptochrome 2 (AtCRY2) to the DNA damage checkpoint protein TopBP1. In mammalian nuclei, light-induced AtCRY2 photobody formation is used to activate DNA damage signaling in the absence of DNA damage.