Fig. 1. Amino acid sequence comparison of the three ac-sc genes isolated from Calliphora vicina (cv) with their orthologues in Drosophila (dm). (A) scute, (B) lethal of scute, and (C) asense. The highly conserved basic helix-loop-helix (bHLH) motif is in red. The line above the sequences indicates conserved positions with one of three symbols: (*) indicates positions that have a single, fully conserved residue. These positions have also been shaded blue. (:) and (.) represent strong and weaker degrees of conservation respectively, according to the Gonnet Pam250 matrix (Benner et al., 1994).
