Anti-ARL4D antibodies are used in the immunodetection of the protein ADP ribosylation factor like GTPase 4D. In humans, the canonical protein has a reported length of 201 amino acid residues and a mass of 22.2 kDa. Its subcellular localization is in the cell membrane, nucleus, and cytoplasm. A member of the Arf protein family, ARL4D is reported to be a small GTP-binding protein which cycles between an inactive GDP-bound and an active GTP-bound form, and the rate of cycling is regulated by guanine nucleotide exchange factors (GEF) and GTPase-activating proteins (GAP). Synonyms for this target antigen include ADP-ribosylation factor-like protein 4D, ADP-ribosylation factor-like 4D, ADP-ribosylation factor-like protein 4L, and ARF4L. ARL4D gene orthologs have been reported in the mouse, rat, bovine, zebrafish and chimpanzee species. Some ARL4D antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.