GAPT is a symbol for the gene, GRB2-binding adaptor protein, transmembrane, in humans. Other names include: Protein GAPT; Growth factor receptor-bound protein 2-binding adapter protein, transmembrane; GRB2-binding transmembrane adaptor; C5orf29. The encoded protein has an amino acid length of 157 and a mass of 17.9 kDa. GAPT is a member of the GAPT family. This gene shares homology with other species, including: Mouse, Rat.