NCIt definition : Eukaryotic translation initiation factor 5A-1 (154 aa, 17 kDa) is encoded by the
human EIF5A gene. This protein plays a role in both apoptosis and translation.;
NCIt note : Eukaryotic translation initiation factor 5A-1 is the only known eukaryotic protein
to have an hypusine residue which is a post-translational modification of a lysine
by the addition of a butylamino group. (UniProt);