Hypusine is essential for eukaryotic cell proliferation.

Abstract

Hypusine [N epsilon-(4-amino-2-hydroxybutyl)lysine] occurs in all eukaryotes at one residue in a highly conserved protein, the putative eukaryotic translation initiation factor 5A (eIF-5A, old terminology eIF-4D). This unusual amino acid is produced in a unique posttranslational modification reaction that involves the conjugation of the 4-aminobutyl moiety… (More)

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