Description: The 1D1 monoclonal antibody reacts with rat Bax (~21 kDa), and does not react with human and mouse Bax. 1D1 shows no cross-reaction with Bcl-2 or Bcl-xL proteins. Bcl-2, Bax, and Bcl-xL are members of a protein family that regulates apoptosis; while several family members including Bcl-2 and Bcl-xL inhibit apoptosis, overexpression of Bax promotes programmed cell death. A rat Bax protein peptide sequence, aa 3-16, was used as immunogen.