Immune responses to bundlin proteins and peptides in mice. The antibody titers of individual mice immunized with purified α1 bundlin protein (A), purified β6 bundlin protein (B), α1 bundlin peptide conjugated to KLH (C), and β6 bundlin peptide conjugated to KLH (D) are shown. The results for preimmune serum pooled from the mice in each group are also shown. The responses against α1 bundlin peptide are indicated by open bars, the responses against β6 bundlin peptide are indicated by filled bars, the responses against α1 bundlin protein are indicated by bars with diagonal strips, the responses against β6 bundlin protein are indicated by bars with horizontal stripes, and the responses against KLH are indicated by cross-hatched bars.