Comparison of barnacle sulfakinin peptide with other arthropods.

<p>(A) Sequence alignment of mature sulf. (B) Precursor structure of barnacle sulf compared with other crustaceans and insects. Insects Sulf are from: <i>Drosophila melanogaster</i> AAF52173, <i>Tribolium castaneum</i> EFA04708, <i>Anopheles gambiae</i> AAR03495, <i>Bombyx mori</i> NP_001124354 and <i>Culex quinquefasciatus</i> XP_001846221; branchiopod is from <i>Daphnia pulex</i> EFX80896; decapods Sulf are from <i>Homarus americanus</i> and <i>Penaeus monodon </i><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0046513#pone.0046513-Dircksen1" target="_blank">[38]</a>. Asterisks “*” represent typical motif residues of each peptide. “x” indicates unique amino acid residues of <i>B. amphitrite</i> compared to other arthropods.