Infographic: Enzymes Controlled by Light

Custom-designed kinases have built-in switches that act as gatekeepers for the enzymes' active sites.

Ruth Williams
Ruth Williams
Apr 30, 2017

© GEORGE RETSECK

FLIPPING OUT

Researchers have designed kinases that can be inactivated and activated by light. In violet light, engineered green fluorescent domains (called pdDronpa) dimerize, glow, and block the enzyme’s active site (top). In blue light, the domains break into monomers, lose their fluorescence, and uncage the kinase’s active site (bottom).

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