A new method has been introduced for light-induced protein dissociation, termed LOVTRAP. This optogenetic approach uses a mutant z subunit of protein A, named Zdk, which binds to a light-oxygen-voltage-sensing domain (LOV2) with precise kinetics. Binding occurs in the dark, with over a 150-fold rise in the dissociation constant upon excitation with blue light. The authors demonstrate reversible sequestration of multiple proteins of interest (POI) to the mitochondrial outer membrane by anchoring LOV2 to mitochondria and fusing the POI to Zdk.