Fig. 4

Domain analyses of Inversin proteins revealing their conservation. A duplication event  has occured in Porifera and four AAX9Y/F motifs at the C-terminal end is shared by Ambulacraria (Hemicentrotus pulcherrimus and Saccoglossus kowalevskii ), Mollusca (Aplysia californica) and poriferan Invs1. Scale: 100 amino-acids