Anti-EIF5A

0.5mg/ml if reconstituted with 0.2ml sterile DI water. Eukaryotic translation initiation factor 5A-1 is a protein that in humans is encoded by the EIF5A gene. Eukaryotic initiation factor 5A (eIF5A) is an mRNA-binding protein that is involved in translation elongation and plays an important role in promoting translation of polyproline motifs. The eIF5A (eIF5A1) and eIF5A2 genes encode the two vertebrate eIF5A isoforms. While eIF5A1 is expressed constitutively in all tissues, eIF5A2 is mainly expressed in gonads. eIF5A and eIF5A2 are the only identified proteins that contain the distinctive amino acid hypusine, which is generated posttranslationally from lysine through a highly conserved polyamine metabolism pathway. eIF5A function and hypusine modification are both essential for cell proliferation, as knock down of eIF5A expression or blocking eIF5A hypusine modification suppresses cancer cell proliferation. Interestingly, eIF5A is an identified component of a tumor suppressor network of the polyamine-hypusine axis. Co-suppression of both eIF5A and adenosylmethionine decarboxylase 1 (AMD1) promotes lymphomagenesis in mice, while heterozygous deletions of the corresponding AMD1 and eIF5A genes often occur together in human lymphomas. Protein function: mRNA-binding protein involved in translation elongation (PubMed:16987817, PubMed:17187778, PubMed:33547280). Has an important function at the level of mRNA turnover, probably acting downstream of decapping (PubMed:16987817, PubMed:17187778, PubMed:33547280). Critical for the efficient synthesis of peptide bonds between consecutive proline residues (PubMed:16987817, PubMed:17187778, PubMed:33547280). Can resolve ribosomal stalling caused by consecutive prolines during translation (PubMed:16987817, PubMed:17187778, PubMed:33547280). Involved in actin dynamics and cell cycle progression, mRNA decay and probably in a pathway involved in stress response and maintenance of cell wall integrity (PubMed:16987817, PubMed:17187778, PubMed:33547280). With syntenin SDCBP, functions as a regulator of p53/TP53 and p53/TP53-dependent apoptosis (PubMed:15371445). Regulates also TNF-alpha-mediated apoptosis (PubMed:15452064). Mediates effects of polyamines on neuronal process extension and survival (PubMed:17360499). May play an important role in brain development and function, and in skeletal muscle stem cell differentiation. Also described as a cellular cofactor of human T-cell leukemia virus type I (HTLV-1) Rex protein and of human immunodeficiency virus type 1 (HIV-1) Rev protein, essential for mRNA export of retroviral transcripts (PubMed:8253832). [The UniProt Consortium]