Eukaryotic translation initiation factor 5A-1 is a protein that in humans is encoded by the EIF5Agene.[1]
It is the only known protein to contain the unusual amino acid hypusine [N (ε)- (4-amino-2-hydroxybutyl)-lysine], which is synthesized on eIF5A at a specific lysine residue from the polyamine spermidine by two catalytic steps.[2]
EF-P is the prokaryotic homolog of eIF5A, which is also modified post-translationally in a similar but distinct way.[3][4]
References
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Li L, Li HS, Pauza CD, et al. (2006). "Roles of HIV-1 auxiliary proteins in viral pathogenesis and host-pathogen interactions". Cell Res. 15 (11–12): 923–34. doi:10.1038/sj.cr.7290370. PMID16354571.
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Chung SI, Park MH, Folk JE, Lewis MS (1991). "Eukaryotic initiation factor 5A: the molecular form of the hypusine-containing protein from human erythrocytes". Biochim. Biophys. Acta. 1076 (3): 448–51. doi:10.1016/0167-4838(91)90490-q. PMID1900436.
Smit-McBride Z, Dever TE, Hershey JW, Merrick WC (1989). "Sequence determination and cDNA cloning of eukaryotic initiation factor 4D, the hypusine-containing protein". J. Biol. Chem. 264 (3): 1578–83. PMID2492279.
Park MH, Liu TY, Neece SH, Swiggard WJ (1986). "Eukaryotic initiation factor 4D. Purification from human red blood cells and the sequence of amino acids around its single hypusine residue". J. Biol. Chem. 261 (31): 14515–9. PMID3095320.
Koettnitz K, Kappel B, Baumruker T, et al. (1994). "The genomic structure encoding human initiation factor eIF-5A". Gene. 144 (2): 249–52. doi:10.1016/0378-1119(94)90385-9. PMID7545941.
Klier H, Csonga R, Joäo HC, et al. (1995). "Isolation and structural characterization of different isoforms of the hypusine-containing protein eIF-5A from HeLa cells". Biochemistry. 34 (45): 14693–702. doi:10.1021/bi00045a010. PMID7578077.
Koettnitz K, Wöhl T, Kappel B, et al. (1995). "Identification of a new member of the human eIF-5A gene family". Gene. 159 (2): 283–4. doi:10.1016/0378-1119(95)00136-T. PMID7622067.
Joe YA, Park MH (1994). "Structural features of the eIF-5A precursor required for posttranslational synthesis of deoxyhypusine". J. Biol. Chem. 269 (41): 25916–21. PMID7929297.
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Liu YP, Nemeroff M, Yan YP, Chen KY (1997). "Interaction of eukaryotic initiation factor 5A with the human immunodeficiency virus type 1 Rev response element RNA and U6 snRNA requires deoxyhypusine or hypusine modification". Biol. Signals. 6 (3): 166–74. doi:10.1159/000109123. PMID9285100.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
Singh US, Li Q, Cerione R (1998). "Identification of the eukaryotic initiation factor 5A as a retinoic acid-stimulated cellular binding partner for tissue transglutaminase II". J. Biol. Chem. 273 (4): 1946–50. doi:10.1074/jbc.273.4.1946. PMID9442029.