Anti-PP6-ARS-B antibodies enable researchers to detect and measure the PP6-ARS-B antigen in biological samples. This target is a reported synonym of the ANKRD44 gene, which encodes ankyrin repeat domain 44. This protein is believed to be a regulatory subunit of protein phosphatase 6 (PP6) that may be involved in the recognition of phosphoprotein substrates. The human version of PP6-ARS-B has a canonical amino acid length of 993 residues and a protein mass of 107.6 kilodaltons, although 5 isoforms have been identified. It is reported to be notably expressed in the testis, pancreas, lymph node, lung, and bone marrow.