Abstract
The Nattering family of proteins found in Thalassophryne nattereri fish venom has five orthologs (1 - 4 and -P) with N-terminal (DM9) and C-terminal (aerolysin) domains. Nattering-like protein sequences can be found in different immune defense cells of various venomous or non-venomous fish species. Moreover, recent studies point to the participation of Nattering-like proteins in immune de…