EIF5A - eukaryotic translation initiation factor 5A

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 (By similarity). 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).

Gene Regulons