... overexpression of wild-type DAP kinaseenhanced the sensitivity to C2-andC8-ceramide, while acatalytically inactive DAP kinase mutant and a constructcontaining the death domain and C-terminal tail of ... mutant lacking the c almodulin-bindingdomain, is constitutively active, while mutant K42A-DK, in which a lysine residue within the kinase domain isreplaced by an alanine residue, is inactive. ... not cytotoxic [4]. In addition, DAP kinase contains unique domains and motifs, including eight ankyrin repeats, two potential ATP/GTP binding sites (P-loops), a cytoskeleton bindingdomain, a...