Protein cornichon homolog 2, CNIH2, Cornichon family AMPA receptor auxiliary protein 2, Protein cornichon homolog 3, CNIH3, Cornichon family AMPA receptor auxiliary protein 3
CNIH2 and CNIH3 regulate the trafficking and gating properties of AMPA-selective glutamate receptors (AMPARs). They promote their targeting to the cell membrane and synapses and modulate their gating properties by regulating their rates of activation, deactivation and desensitization. CNIH2 also blocks CACNG8-mediated resensitization of AMPA receptors.