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EIF4B eukaryotic translation initiation factor 4B [ Homo sapiens (human) ]

Gene ID: 1975, updated on 9-Dec-2018

Summary

Official Symbol
EIF4Bprovided by HGNC
Official Full Name
eukaryotic translation initiation factor 4Bprovided by HGNC
Primary source
HGNC:HGNC:3285
See related
Ensembl:ENSG00000063046 MIM:603928
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
EIF-4B; PRO1843
Expression
Ubiquitous expression in ovary (RPKM 285.6), thyroid (RPKM 146.6) and 25 other tissues See more
Orthologs

Genomic context

See EIF4B in Genome Data Viewer
Location:
12q13.13
Exon count:
15
Annotation release Status Assembly Chr Location
109 current GRCh38.p12 (GCF_000001405.38) 12 NC_000012.12 (53006258..53042215)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 12 NC_000012.11 (53399942..53435993)

Chromosome 12 - NC_000012.12Genomic Context describing neighboring genes Neighboring gene ribosomal protein L7 pseudogene 41 Neighboring gene keratin 8 Neighboring gene KRT18 locus control region Neighboring gene keratin 18 Neighboring gene uncharacterized LOC283335 Neighboring gene tensin 2 Neighboring gene microRNA 6757

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Pr55(Gag) gag Cellular biotinylated eukaryotic translation initiation factor 4B (EIF4B) protein is incorporated into HIV-1 Gag virus-like particles PubMed

Go to the HIV-1, Human Interaction Database

Pathways from BioSystems

  • Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S, organism-specific biosystem (from REACTOME)
    Activation of the mRNA upon binding of the cap-binding complex and eIFs, and subsequent binding to 43S, organism-specific biosystemThe cap-binding complex is constituted by the initiation factors eIF4A, eIF4G and eIF4E. First, eIF4E must be released from the inactive eIF4E:4E-BP complex. Then eIF4A interacts with eIF4G, and eIF...
  • Cap-dependent Translation Initiation, organism-specific biosystem (from REACTOME)
    Cap-dependent Translation Initiation, organism-specific biosystemTranslation initiation is a complex process in which the Met-tRNAi initiator, 40S, and 60S ribosomal subunits are assembled by eukaryotic initiation factors (eIFs) into an 80S ribosome at the start c...
  • Deadenylation of mRNA, organism-specific biosystem (from REACTOME)
    Deadenylation of mRNA, organism-specific biosystemDeadenylation of mRNA proceeds in two steps. According to current models, in the first step the poly(A) tail is shortened from about 200 adenosine residues to about 80 residues by the PAN2-PAN3 compl...
  • Deadenylation-dependent mRNA decay, organism-specific biosystem (from REACTOME)
    Deadenylation-dependent mRNA decay, organism-specific biosystemAfter undergoing rounds of translation, mRNA is normally destroyed by the deadenylation-dependent pathway. Though the trigger is unclear, deadenylation likely proceeds in two steps: one catalyzed by...
  • Eukaryotic Translation Initiation, organism-specific biosystem (from REACTOME)
    Eukaryotic Translation Initiation, organism-specific biosystemInitiation of translation in the majority of eukaryotic cellular mRNAs depends on the 5'-cap (m7GpppN) and involves ribosomal scanning of the 5' untranslated region (5'-UTR) for an initiating AUG sta...
  • GTP hydrolysis and joining of the 60S ribosomal subunit, organism-specific biosystem (from REACTOME)
    GTP hydrolysis and joining of the 60S ribosomal subunit, organism-specific biosystemHydrolysis of eIF2-GTP occurs after the Met-tRNAi has recognized the AUG. This reaction is catalyzed by eIF5 (or eIF5B) and is thought to cause dissociation of all other initiation factors and allow ...
  • Gene Expression, organism-specific biosystem (from REACTOME)
    Gene Expression, organism-specific biosystemGene Expression covers the pathways by which genomic DNA is transcribed to yield RNA, the regulation of these transcription processes, and the pathways by which newly-made RNA Transcripts are process...
  • IGF1R signaling cascade, organism-specific biosystem (from REACTOME)
    IGF1R signaling cascade, organism-specific biosystemAfter autophosphorylation the type 1 insulin-like growth factor receptor (IGF1R) binds and phosphorylates scaffold proteins, IRS1/2/4 and SHC1, which in turn bind effectors possessing enzymatic activ...
  • IRS-mediated signalling, organism-specific biosystem (from REACTOME)
    IRS-mediated signalling, organism-specific biosystemRelease of phospho-IRS from the insulin receptor triggers a cascade of signalling events via PI3K, SOS, RAF and the MAP kinases.
  • IRS-related events triggered by IGF1R, organism-specific biosystem (from REACTOME)
    IRS-related events triggered by IGF1R, organism-specific biosystemThe phosphorylated type 1 insulin-like growth factor receptor phosphorylates IR1, IRS2, IRS4 and possibly other IRS/DOK family members (reviewed in Pavelic et al. 2007, Chitnis et al. 2008, Maki et a...
  • Insulin receptor signalling cascade, organism-specific biosystem (from REACTOME)
    Insulin receptor signalling cascade, organism-specific biosystemAutophosphorylation of the insulin receptor triggers a series of signalling events, mediated by SHC or IRS, and resulting in activation of the Ras/RAF and MAP kinase cascades. A second effect of the ...
  • Interferon type I signaling pathways, organism-specific biosystem (from WikiPathways)
    Interferon type I signaling pathways, organism-specific biosystemThe type I IFNs (IFN? family, IFN?, IFN?, IFN? and IFN?) all bind to and signal via the type I IFN receptor complex. The type I receptor consists of two main IFNAR1, IFNAR2c receptor chains and other...
  • L13a-mediated translational silencing of Ceruloplasmin expression, organism-specific biosystem (from REACTOME)
    L13a-mediated translational silencing of Ceruloplasmin expression, organism-specific biosystemWhile circularization of mRNA during translation initiation is thought to contribute to an increase in the efficiency of translation, it also appears to provide a mechanism for translational silencin...
  • Metabolism of proteins, organism-specific biosystem (from REACTOME)
    Metabolism of proteins, organism-specific biosystemProtein metabolism comprises the pathways of translation, post-translational modification and protein folding.
  • PI3K Cascade, organism-specific biosystem (from REACTOME)
    PI3K Cascade, organism-specific biosystem
    PI3K Cascade
  • PI3K-Akt signaling pathway, organism-specific biosystem (from KEGG)
    PI3K-Akt signaling pathway, organism-specific biosystemThe phosphatidylinositol 3' -kinase(PI3K)-Akt signaling pathway is activated by many types of cellular stimuli or toxic insults and regulates fundamental cellular functions such as transcription, tra...
  • PI3K-Akt signaling pathway, conserved biosystem (from KEGG)
    PI3K-Akt signaling pathway, conserved biosystemThe phosphatidylinositol 3' -kinase(PI3K)-Akt signaling pathway is activated by many types of cellular stimuli or toxic insults and regulates fundamental cellular functions such as transcription, tra...
  • PKB-mediated events, organism-specific biosystem (from REACTOME)
    PKB-mediated events, organism-specific biosystemPKB and PDK1 are activated via membrane-bound PIP3. Activated PDK1 phosphorylates PKB, which in turn phosphorylates PDE3B. The latter hydrolyses cAMP to 5'AMP, depleting cAMP pools.
  • Proteoglycans in cancer, organism-specific biosystem (from KEGG)
    Proteoglycans in cancer, organism-specific biosystemMany proteoglycans (PGs) in the tumor microenvironment have been shown to be key macromolecules that contribute to biology of various types of cancer including proliferation, adhesion, angiogenesis a...
  • Proteoglycans in cancer, conserved biosystem (from KEGG)
    Proteoglycans in cancer, conserved biosystemMany proteoglycans (PGs) in the tumor microenvironment have been shown to be key macromolecules that contribute to biology of various types of cancer including proliferation, adhesion, angiogenesis a...
  • RNA transport, organism-specific biosystem (from KEGG)
    RNA transport, organism-specific biosystemRNA transport from the nucleus to the cytoplasm is fundamental for gene expression. The different RNA species that are produced in the nucleus are exported through the nuclear pore complexes (NPCs) ...
  • RNA transport, conserved biosystem (from KEGG)
    RNA transport, conserved biosystemRNA transport from the nucleus to the cytoplasm is fundamental for gene expression. The different RNA species that are produced in the nucleus are exported through the nuclear pore complexes (NPCs) ...
  • Ribosomal scanning and start codon recognition, organism-specific biosystem (from REACTOME)
    Ribosomal scanning and start codon recognition, organism-specific biosystemThe 80S ribosome bound to the mRNA moves along the mRNA molecule from its initial site to the initiation codon and forms a 48S complex, in which the initiation codon is base paired to the anticodon o...
  • Signal Transduction, organism-specific biosystem (from REACTOME)
    Signal Transduction, organism-specific biosystemSignal transduction is a process in which extracellular signals elicit changes in cell state and activity. Transmembrane receptors sense changes in the cellular environment by binding ligands, such a...
  • Signaling by Insulin receptor, organism-specific biosystem (from REACTOME)
    Signaling by Insulin receptor, organism-specific biosystemInsulin binding to its receptor results in receptor autophosphorylation on tyrosine residues and the tyrosine phosphorylation of insulin receptor substrates (e.g. IRS and Shc) by the insulin receptor...
  • Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R), organism-specific biosystem (from REACTOME)
    Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R), organism-specific biosystemBinding of IGF1 (IGF-I) or IGF2 (IGF-II) to the extracellular alpha peptides of the type 1 insulin-like growth factor receptor (IGF1R) triggers the activation of two major signaling pathways: the SOS...
  • Translation, organism-specific biosystem (from REACTOME)
    Translation, organism-specific biosystemProtein synthesis is accomplished through the process of translation of an mRNA sequence into a polypeptide chain. This process can be divided into three distinct stages: initiation, elongation and ...
  • Translation Factors, organism-specific biosystem (from WikiPathways)
    Translation Factors, organism-specific biosystemProtein synthesis is the ultimate step of gene expression and a key control point for regulation. In particular, it enables cells to rapidly manipulate protein production without new mRNA synthesis, ...
  • Translation initiation complex formation, organism-specific biosystem (from REACTOME)
    Translation initiation complex formation, organism-specific biosystemThe translation initiation complex forms when the 43S complex binds the mRNA that is associated with eIF4F, eIF4B and eIF4H. eIF4G in the eIF4F complex can directly contact eIF3 in the 43S complex. e...
  • mTOR signaling pathway, organism-specific biosystem (from KEGG)
    mTOR signaling pathway, organism-specific biosystemThe mammalian (mechanistic) target of rapamycin (mTOR) is a highly conserved serine/threonine protein kinase, which exists in two complexes termed mTOR complex 1 (mTORC1) and 2 (mTORC2). mTORC1 conta...
  • mTOR signaling pathway, organism-specific biosystem (from Pathway Interaction Database)
    mTOR signaling pathway, organism-specific biosystem
    mTOR signaling pathway
  • mTOR signaling pathway, conserved biosystem (from KEGG)
    mTOR signaling pathway, conserved biosystemThe mammalian (mechanistic) target of rapamycin (mTOR) is a highly conserved serine/threonine protein kinase, which exists in two complexes termed mTOR complex 1 (mTORC1) and 2 (mTORC2). mTORC1 conta...
  • mTOR signalling, organism-specific biosystem (from REACTOME)
    mTOR signalling, organism-specific biosystemTarget of rapamycin (mTOR) is a highly-conserved serine/threonine kinase that regulates cell growth and division in response to energy levels, growth signals, and nutrients (Zoncu et al. 2011). Contr...
  • mTORC1-mediated signalling, organism-specific biosystem (from REACTOME)
    mTORC1-mediated signalling, organism-specific biosystemmTORC1 integrates four major signals ? growth factors, energy status, oxygen and amino acids ? to regulate many processes that are involved in the promotion of cell growth. Growth factors stimulate m...

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
RNA binding HDA PubMed 
RNA strand annealing activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
RNA strand-exchange activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
ribosomal small subunit binding IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
translation initiation factor activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
Process Evidence Code Pubs
cytoplasmic translation IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
eukaryotic translation initiation factor 4F complex assembly IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
formation of translation preinitiation complex IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
regulation of translational initiation TAS
Traceable Author Statement
more info
PubMed 
translational initiation TAS
Traceable Author Statement
more info
 
Component Evidence Code Pubs
cytosol IDA
Inferred from Direct Assay
more info
 
cytosol TAS
Traceable Author Statement
more info
 
eukaryotic translation initiation factor 4F complex TAS
Traceable Author Statement
more info
PubMed 
polysome IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 

General protein information

Preferred Names
eukaryotic translation initiation factor 4B

NCBI Reference Sequences (RefSeq)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001300821.2NP_001287750.1  eukaryotic translation initiation factor 4B isoform 1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1).
    Source sequence(s)
    AC068888, AK299329, BC001097, DC403237
    Consensus CDS
    CCDS73474.1
    UniProtKB/TrEMBL
    B4DRM3, E7EX17, Q7Z5Y0
    Related
    ENSP00000388806.3, ENST00000420463.7
    Conserved Domains (2) summary
    COG0724
    Location:83190
    RRM; RNA recognition motif (RRM) domain [Translation, ribosomal structure and biogenesis]
    cd12402
    Location:95171
    RRM_eIF4B; RNA recognition motif in eukaryotic translation initiation factor 4B (eIF-4B) and similar proteins
  2. NM_001330654.1NP_001317583.1  eukaryotic translation initiation factor 4B isoform 3

    Status: VALIDATED

    Source sequence(s)
    AC068888, AK299526, BP243230, DC403237
    Consensus CDS
    CCDS86303.1
    UniProtKB/Swiss-Prot
    P23588
    Related
    ENSP00000412530.3, ENST00000416762.7
  3. NM_001417.6NP_001408.2  eukaryotic translation initiation factor 4B isoform 2

    See identical proteins and their annotated locations for NP_001408.2

    Status: VALIDATED

    Description
    Transcript Variant: This variant (2) uses an alternate in-frame splice site in the 3' coding region compared to variant 1. The encoded isoform (2) is shorter than isoform 1.
    Source sequence(s)
    AB076839, AC068888, BP243230, BU431305, DC403237
    Consensus CDS
    CCDS41788.1
    UniProtKB/Swiss-Prot
    P23588
    Related
    ENSP00000262056.9, ENST00000262056.13
    Conserved Domains (3) summary
    cd12402
    Location:95171
    RRM_eIF4B; RNA recognition motif in eukaryotic translation initiation factor 4B (eIF-4B) and similar proteins
    cl25574
    Location:372608
    TOP2c; TopoisomeraseII
    cl28310
    Location:158273
    Rho; Transcription termination factor Rho [Transcription]

RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 109

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p12 Primary Assembly

Genomic

  1. NC_000012.12 Reference GRCh38.p12 Primary Assembly

    Range
    53006258..53042215
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Suppressed Reference Sequence(s)

The following Reference Sequences have been suppressed. Explain

  1. NM_018507.1: Suppressed sequence

    Description
    NM_018507.1: This RefSeq was permanently suppressed because it is primarily 3'' UTR sequence and it is on the wrong strand compared to other mRNA transcripts for the gene.
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