Fig. 2.

Lepidocampa weberi (Diplura) precursor sequences of putative neuropeptides and selected protein hormones (bursicon, EH). In L. weberi, the transcript sequences cover the full-length sequences of most precursors; note the distinct novel CCAP sequence. We did not find pigment-dispersing factor (PDF)-containing precursors in any proturan and dipluran, but they were identified in all other non-pterygote hexapods (i.e., Collembola, Archaeognatha, and Zygentoma). Predicted signal peptides (highlighted in grey), amidation signals (bold), cleavage signals (italics, bold), splice variants (a, b), and supposedly bioactive mature peptides (underscored) are indicated. Incomplete sequences are indicated with “…”