Diphthamide synthase catalyses the last amidation step of diphthamide biosynthesis using ammonium and ATP. Diphthamide synthase is evolutionarily conserved in eukaryotes. Diphthamide is a post-translationally modified histidine residue found on archa ...
Diphthamide synthase catalyses the last amidation step of diphthamide biosynthesis using ammonium and ATP. Diphthamide synthase is evolutionarily conserved in eukaryotes. Diphthamide is a post-translationally modified histidine residue found on archaeal and eukaryotic translation elongation factor 2 (eEF-2) [1]. In some members of this family e.g. Swiss:Q12429, this domain is associated with Pfam:PF01042. The enzyme classification is EC:6.3.1.14.