Anti-TMEM228 antibodies are protein reagents that detect specific antigens. The TMEM228 antigen is another term for the human protein endosomal transmembrane epsin interactor 2, encoded by the ENTREP2 gene. Canonically, it has an amino acid length of 539 residues and a mass of 56.5 kilodaltons. Its subcellular localization is in the membrane. The TMEM228 protein is a member of the ENTREP protein family.