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    EIF4E

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    For Research Use Only. Not For Clinical Use.


    The protein encoded by this gene is a component of the eukaryotic translation initiation factor 4F complex, which recognizes the 7-methylguanosine cap structure at the 5' end of messenger RNAs. The encoded protein aids in translation initiation by recruiting ribosomes to the 5'-cap structure. Association of this protein with the 4F complex is the rate-limiting step in translation initiation. This gene acts as a proto-oncogene, and its expression and activation is associated with transformation and tumorigenesis. Several pseudogenes of this gene are found on other chromosomes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]
    Protein class

    Cancer-related genes, Disease related genes, Human disease related genes, Plasma proteins

    Predicted location

    Intracellular

    Single cell type specificity

    Group enriched (Late spermatids, Early spermatids)

    Immune cell specificity

    Low immune cell specificity

    Cell line specificity

    Low cell line specificity

    Interaction

    eIF4F is a multi-subunit complex, the composition of which varies with external and internal environmental conditions (PubMed:11408474, PubMed:11879179, PubMed:16271312, PubMed:17631896). It is composed of at least EIF4A, EIF4E and EIF4G1/EIF4G3 (PubMed:8521827, PubMed:11408474, PubMed:11879179, PubMed:12975586). EIF4E is also known to interact with other partners (PubMed:8521827, PubMed:11408474, PubMed:11879179, PubMed:12975586). Interacts with EIF4ENIF1/4E-T; promotes recruitment to P-bodies and import into the nucleus (PubMed:10856257, PubMed:16157702, PubMed:23991149, PubMed:24335285, PubMed:28487484). Hypophosphorylated EIF4EBP1, EIF4EBP2 and EIF4EBP3 compete with EIF4G1/EIF4G3 to interact with EIF4E; insulin stimulated MAP-kinase (MAPK1 and MAPK3) phosphorylation of EIF4EBP1 causes dissociation of the complex allowing EIF4G1/EIF4G3 to bind and consequent initiation of translation (PubMed:8521827, PubMed:16271312, PubMed:21661078, PubMed:24207126, PubMed:25533957, PubMed:25702871). Interacts mutually exclusive with EIF4A1 or EIF4A2 (PubMed:11408474). Interacts with NGDN and PIWIL2 (By similarity). Component of the CYFIP1-EIF4E-FMR1 complex composed of CYFIP, EIF4E and FMR1 (By similarity). Interacts directly with CYFIP1 (By similarity). Interacts with CLOCK (By similarity). Binds to MKNK2 in nucleus (PubMed:12897141). Interacts with LIMD1, WTIP and AJUBA (PubMed:20616046). Interacts with APOBEC3G in an RNA-dependent manner (PubMed:16699599). Interacts with LARP1 (PubMed:20430826). Interacts with METTL3 (PubMed:27117702). Interacts with RBM24; this interaction prevents EIF4E from binding to p53/TP53 mRNA and inhibits the assembly of translation initiation complex (PubMed:29358667). Interacts with DDX3X; interaction is direct and in an RNA-independent manner; this interaction enhances EIF4E cap-binding ability and is required for the repression of cap-dependent translation and the increase of IRES-mediated translation (PubMed:17667941, PubMed:21883093, PubMed:28733330). DDX3X competes with EIF4G1 for interaction with EIF4E (PubMed:17667941, PubMed:21883093). Interacts with BTG4 and CNOT7 (By similarity). (Microbial infection) Interacts with Lassa virus Z protein.

    Molecular function

    Initiation factor, RNA-binding

    More Types Infomation
    Related Signaling Pathways
    Insulin Signaling Pathway Insulin Signaling Pathway
    MAPK Signaling Pathway MAPK Signaling Pathway
    mTOR Signaling Pathway mTOR Signaling Pathway
    Related Diseases
    Insulin Resistance Insulin Resistance
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