For decades, scientists have puzzled over the delta glutamate receptors (GluDs), mysterious proteins in the brain that are vital for synapse formation and maintenance, and are directly implicated in psychiatric and neurological disorders, but whose true function was unknown. Today, we report the solving of this mystery: delta receptors are actually ligand-gated ion channels – tiny biological switches that power brain activity and learning by turning neurotransmitters into electrical signal.
Why is this important? Despite their role in brain health, neurological disease, and psychiatric disorders, no treatments have been developed to target GluDs because their intrinsic mechanisms have been unknown. This work lifts that veil to open new doors for therapeutic development, understanding channelopathies, and completely rewrites the textbooks on how brains process information.
An additional fun fact is that despite being glutamate receptors, these are not activated by glutamate, but rather the neurotransmitters GABA and D-serine.
Read more here: https://www.nature.com/articles/s41586-025-09610-x