Figure 3. Western blots and similarity of Sonic-Hh and butterfly Hh sequences suggest that 5E1 antibody recognizes Hh in butterflies.

(A) Alignment of sequences corresponding to the Sonic-Hh peptide used to make the 5E1 monoclonal antibody [15]. Areas boxed in red correspond to the 5E1 epitope [26], [27]. (B) Western blot with B. anynana proteins extracted from wing discs showing three potential Hh fragments with the predicted sizes of 19 kD, 25 kD, and 37 kD (arrows) previously characterized from D. melanogaster Hh [21]. (C) No bands were detected with the control NS1 medium. The left lane of each photo is the protein standard.