HEPN domain
In molecular biology , the HEPN domain ( higher eukaryotes and prokaryotes nucleotide-binding domain ) is a region of approximately 110 amino acids found in the C terminus of sacsin , a chaperonin implicated in an early-onset neurodegenerative disease in human , and in many bacterial and archaea proteins . 
<triplet> domain <subj> protein <obj> part of <triplet> C terminus <subj> protein <obj> part of <triplet> chaperonin <subj> protein <obj> subclass of <triplet> protein <subj> amino acids <obj> has part