LOVTRAP: an optogenetic system for photoinduced protein dissociation.

Wang, Hui; Vilela, Marco; Winkler, Andreas; Tarnawski, Miroslaw; Schlichting, Ilme; Yumerefendi, Hayretin; Kuhlman, Brian; Liu, Rihe et al. · Nat Methods · 2016

basic_science · Level V

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Abstract

LOVTRAP is an optogenetic approach for reversible light-induced protein dissociation using protein A fragments that bind to the LOV domain only in the dark, with tunable kinetics and a >150-fold change in the dissociation constant (Kd). By reversibly sequestering proteins at mitochondria, we precisely modulated the proteins' access to the cell edge, demonstrating a naturally occurring 3-mHz cell-edge oscillation driven by interactions of Vav2, Rac1, and PI3K proteins.

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