Anti-APG4D antibodies enable researchers to detect and measure the APG4D antigen in biological samples. This target is a reported synonym of the ATG4D gene, which encodes autophagy related 4D cysteine peptidase. This protein is known to function in the apoptotic pathway and autophagy pathways, among other biological roles. The human version of APG4D has a canonical amino acid length of 474 residues and a protein mass of 52.9 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the mitochondria and cytoplasm of cells and notably expressed in many tissues, such as the duodenum and small intestine. APG4D is a member of the Peptidase C54 protein family. Western Blot is the most common application for the APG4D antibodies listed below. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.