Ambulacraria Ambulacraria Ambulacraria or Coelomopora is a Superphylum of invertebrate phyla which includes echinoderms and hemichordates; a member of this group is called an ambulacrarian. Phylogenetic analysis suggest the echinoderms and hemichordates separated around 533 million years ago. The Ambulacraria are part of the deuterostomes, a larger clade that also includes the Chordata, Vetulicolia and Saccorhytus. The two living clades with representative organisms are: The group Xenoturbellida (two species of worm-like animals) has previously been considered to be in this clade, but is now considered to be placed more basally among Metazoans. Fossil taxa that may lie on the stem lineage:
Death Domain database For example, DED will only bind with DED, CARD-CARD, PYD-PYD and DD-DD. These homotypic interactions are with only two members of the same domain (or on rare occasions with more) and there has been no evidence to suggest that these domains have heterotypic interactions with one another. DED domains are highly conserved in the Chordata phylum and can also be found in smaller percentages in the Echinodermata phylum and viruses. DED-containing proteins are associated with apoptosis regulation with caspase protein interaction and have been notably documented in mammals. DED domains have been known to interact with other domains and include: