EEF1A1
This gene encodes an isoform of the alpha subunit of the elongation factor-1 complex, which is responsible for the enzymatic delivery of aminoacyl tRNAs to the ribosome. This isoform (alpha 1) is expressed in brain, placenta, lung, liver, kidney, and pancreas, and the other isoform (alpha 2) is expressed in brain, heart and skeletal muscle. This isoform is identified as an autoantigen in 66% of patients with Felty syndrome. This gene has been found to have multiple copies on many chromosomes, some of which, if not all, represent different pseudogenes. [provided by RefSeq, Jul 2008]
Full Name
Eukaryotic Translation Elongation Factor 1 Alpha 1
Research Area
This protein promotes the GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis. Plays a role in the positive regulation of IFNG transcription in T-helper 1 cells as part of an IFNG promoter-binding complex with TXK and PARP1 (PubMed:17177976).
(Microbial infection) Required for the translation of viral proteins and viral replication during human coronavirus SARS-CoV-2 infection.
Biological Process
Cellular response to epidermal growth factor stimulus Source: UniProtKB
Regulation of chaperone-mediated autophagy Source: ParkinsonsUK-UCL
Regulation of D-erythro-sphingosine kinase activity Source: UniProtKB
Translation Source: GO_Central
Translational elongation Source: GO_Central
Cellular Location
Nucleus; Nucleolus; Cell membrane; Cytoplasm. Colocalizes with DLC1 at actin-rich regions in the cell periphery (PubMed:19158340). Translocates together with ZPR1 from the cytoplasm to the nucleus and nucleolus after treatment with mitogens (PubMed:8650580). Localization at the cell membrane depends on EEF1A1 phosphorylation status and the presence of PPP1R16B (PubMed:26497934).
PTM
ISGylated.
Phosphorylated by TXK. Phosphorylation by PASK increases translation efficiency. Phosphorylated by ROCK2 (PubMed:26497934).
Trimethylated at Lys-79 by EEF1AKMT1 (PubMed:26545399). Methylated at Lys-165 by EEF1AKMT3, methylation by EEF1AKMT3 is dynamic as well as inducible by stress conditions, such as ER-stress, and plays a regulatory role on mRNA translation (PubMed:28108655). Trimethylated at Lys-318 by EEF1AKMT2 (PubMed:25144183). Mono-, di-, and trimethylated at Lys-36 by EEF1AKMT4; trimethylated form is predominant. Methylation by EEF1AKMT4 contributes to the fine-tuning of translation rates for a subset of tRNAs (PubMed:28520920). Trimethylated at Gly-2 by METTL13 (PubMed:30143613). Mono- and dimethylated at Lys-55 by METTL13; dimethylated form is predominant (PubMed:30143613, PubMed:30612740).