Anti-jumpy antibodies enable researchers to detect and measure the jumpy antigen in biological samples. This target is a reported synonym of the MTMR14 gene, which encodes myotubularin related protein 14. This protein is known to function in autophagy pathways, among other biological roles. The human version of jumpy has a canonical amino acid length of 650 residues and a protein mass of 72.2 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cytoplasm of cells and notably expressed in many tissues, such as the appendix, stomach, and adrenal gland. Other names for this target antigen include NS5ATP4ABP1 and egg-derived tyrosine phosphatase homolog.