Figure 3
Exon-intron organisation of the neuroserpin gene lineage. The Nematostella vectensis serpin gene Nve-Spn-1 is included, though orthology with the deuterostome counterparts is currently only supported by protein-based signature sequences. Specifications for intron positions and their phasing refer to mature human α1-antitrypsin. Only introns mapping to the serpin core domain (residues 33 to 394 of the reference) are considered.