pfam16977: ApeC (This model is not part of the current CDD release)
C-terminal domain of apextrin
ApeC domain was first identified from two apextrin-like proteins (ALP) of the amphioxus Branchiostoma japonicum. Our functional studies show that amphioxus ALP1 and ALP2 are important anti-bacterial effectors, and that the apeC domain of the ALP1/2 mediates the bacterial recognition by binding to bacterial muramyl dipeptide (MDP). Further analysis shows that the apeC domain is present in various proteins from cnidarians, molluscs, arthropods, hemichordates, echinoderms and amphioxus. The apeC domain is also found to form different domain combinations with other domains (in press).