Figure 3.

Putative AMYREL proteins of D. melanogaster (melrel), D. ananassae (anarel), and D. subobscura (subrel) and AMY proteins from D. melanogaster (melano) and pancreatic amylase of man (HumPancr) were aligned by clustalw and edited with seqapp. Shading indicates invariant residues. Vertical arrows show positions where AMYREL sequences share common residues that are different from conserved residues of animal AMY proteins. Asterisks mark the positions of cysteines involved in disulfide bridges in the pig and putatively in other animal AMY proteins. Plus signs mark additional cysteines in AMYREL.