Hidden switch lets two of four receptor subunits open brain ion channel

Article excerpt

Researchers at Ruhr University Bochum and Weill Cornell Medicine have discovered a hidden mechanism that allows just two of four receptor subunits to open ion channels in the brain. The finding concerns how nerve cells detect glutamate, the primary excitatory neurotransmitter. The team, led by Professor Andreas Reiner, identified a molecular 'switch' that governs which subunits can activate these channels, potentially explaining how neurons fine-tune their responses to chemical signals. The discovery could reshape understanding of brain signal transmission and may have implications for neurological disorders.