Anti-yippee like 1 antibodies are used in the immunodetection of the protein encoded by the YPEL1 gene. In humans, the canonical protein has a reported length of 119 amino acid residues and a mass of 13.6 kDa. Its subcellular localization is in the nucleus. A member of the Yippee protein family, it is believed to play a role in epithelioid conversion of fibroblasts. Other names for this target antigen include protein yippee-like 1, DiGeorge syndrome-related protein, and FKSG3.