CD3 zeta is an alias for the gene, CD247 molecule, in humans. Other names include: T-cell surface glycoprotein CD3 zeta chain; T-cell receptor T3 zeta chain; CD antigen CD247; CD3-ZETA; CD3H; CD3Q; CD3Z; IMD25; T3Z; TCRZ. The encoded protein has an amino acid length of 164 and a mass of 18.7 kDa. CD3 zeta is a member of the CD3Z/FCER1G family. This gene shares homology with other species, including: Mouse.