Anti-Rab11-FIP4 antibodies are used in antigen-specific immunodetection in biological samples. The target Rab11-FIP4 is a known alias name of the protein RAB11 family interacting protein 4, encoded by the RAB11FIP4 gene in humans. This 637-amino acid residue protein is known to act as a regulator of endocytic traffic by participating in membrane delivery. It is localized to the membrane, cytoplasmic vesicles, and cytoplasm of the cell. It is reported to be widely expressed in many tissue types.