In mouse brain slices, native delta glutamate receptors carry ionic current and underlie the α1-adrenergic receptor-mediated depolarization of dorsal raphe neurons that drives action potential firing in vivo.
The animal phylogeny of glutamate receptors indicates that vertebrate types do not account for all receptor classes originated during evolution, neither are they the pinnacle of a linear evolutive process.
During parallel fibre activity in vivo, postsynaptic mGluR1 receptors in molecular layer interneurons of the cerebellar cortex are engaged in a frequency-dependent manner and in concert with inotropic glutamate receptors.
Single molecule subunit counting, FRET and electrophysiology experiments reveal that metabotropic glutamate receptor subunits interact and rearrange at the level of the transmembrane domains in response to allosteric modulators.
Innovative approaches were used to identify the specific pharmacological properties of heterodimeric metabotropic glutamate receptors composed of mGlu2 and mGlu4 subunits, and reveal their existence in a neuronal cell line and in perforant path terminals.