This affinity purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to an internal region of Human Btb1. Btb1 is a currently uncharacterized human ankyrin repeat protein BAA92655.
BTB1 acts as an inhibitor of BTK tyrosine kinase activity, thereby playing a role in B-cell development. It down-regulates BTK kinase activity, leading to interference with BTK-mediated calcium mobilization and NF-kappa-B-driven transcription.