Anti-B-cell scaffold protein with ankyrin repeats 1 antibodies enable researchers to detect and measure the B-cell scaffold protein with ankyrin repeats 1 antigen in biological samples. This target is a reported synonym of the BANK1 gene, which encodes B cell scaffold protein with ankyrin repeats 1. This protein is known to function in MAPK cascade signaling pathways, among other biological roles. The human version of B-cell scaffold protein with ankyrin repeats 1 has a canonical amino acid length of 785 residues and a protein mass of 89.3 kilodaltons, although 4 isoforms have been identified. It is reported to be notably expressed in the spleen, rectum, lymph node, colon, and appendix.