Anti-Upk3bl antibodies enable researchers to detect and measure the Upk3bl antigen in biological samples. This target is a reported synonym of the UPK3BL1 gene, which encodes uroplakin 3B like 1. The human version of Upk3bl has a canonical amino acid length of 263 residues and a protein mass of 28.4 kilodaltons. It is reported to be localized in the membrane of cells and notably expressed in the urinary bladder, tonsil, and kidney. Upk3bl is a member of the Uroplakin-3 protein family.