BphP1-QPAS1
Multi-Component SwitchBphP1-QPAS1 is a near-infrared light-inducible protein interaction system in which the bacterial phytochrome BphP1 binds an engineered partner, QPAS1, for optical protein regulation in mammalian cells. It has been incorporated into multi-component optogenetic tools for transcriptional control and protein targeting, including use in neurons and non-neuronal cells.