English: A: hedgehog and B: Notch homologues. The illustrated domains are some of those found by searches against the Conserved Domain Database. Numbers at the species names are accession numbers, protein IDs from the Joint Genome Institute (JGI) and references where annotation recently have been presented. Domain structure identified in Ministeria is compared with animals - Porifera (Amphimedon and Oscarella), Cnidaria (Nematostella) and Chordata (Homo) - and the choanoflagellate Monosiga. Abbreviations: Hh-signal domain, N-terminal hedgehog domain; Hint cleavage site, cleavage site of the C-terminal hedgehog domain; Hint domain, C-terminal hedgehog domain; Notch(DSL), Notch domain also called Delta Serrate Ligand; EGF, epidermal growth factor domain; NL, domain found in Notch and Lin-12; NOD, NOD region; NODP, NODP region; ANK, ankyrin reapeats; PTP, protein tyrosine phosphatase.