MPP1
55 kDa erythrocyte membrane protein is a protein that in humans is encoded by the MPP1 gene.
Palmitoylated membrane protein 1 is the prototype of a family of membrane-associated proteins termed MAGUKs. MAGUKs interact with the cytoskeleton and regulate cell proliferation, signaling pathways, and intracellular junctions. Palmitoylated membrane protein 1 contains a conserved sequence, called the SH3 motif, found in several other proteins that associate with the cytoskeleton and are suspected to play important roles in signal transduction.