Figure 1.

Gene sequences of CsILP1 (A) and CsILP2 (B) and the corresponding protein sequence from C. septempunctata. Signal peptides were “—” underlined, B chains were framed by green squares, C peptides were framed by red squares, A chains were framed by blue squares. An asterisk indicates the stop codon. Conserved domains were in red font. The characteristic cysteines of insulin-like sequences were highlighted in green.