CryoEM structure of mGlu6 captures receptor activation prior to G protein coupling.

Abstract excerpt

The metabotropic glutamate receptor 6 (mGlu6) is essential for synaptic communication of rod photoreceptors, and mutations in mGlu6 lead to a blinding disorder. However, its structural organization remains unknown. Here, we present the structure of agonist-bound mGlu6, revealing an asymmetric dimer arrangement in the absence of a G protein. This indicates that agonist binding alone can induce the homodimeric...

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