Glutamate receptor-interacting protein
Glutamate receptor-interacting protein (GRIP) refers to either a family of proteins that bind to the glutamate receptor or specifically to the GRIP1 protein within this family. Proteins in the glutamate receptor-interacting protein (GRIP) family have been shown to interact with GluR2, a common subunit in the AMPA receptor.
Source: Wikipedia — Glutamate receptor-interacting protein (CC BY-SA 4.0)