GRIP: A synaptic PDZ domain-containing protein that interacts with AMPA receptors.

Identifies a synaptic PDZ domain-containing protein glutamate receptor interacting protein (GRIP) that specifically interacts with the C termini of AMPA glutamate receptors. The ability of GRIP to serve as an adapter protein that links AMPA receptors to other proteins; The possible role in the clustering of AMPA receptors at excitatory synapses in the brain.