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EIF4A3
HPA
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  • EIF4A3
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

EIF4A3
Synonyms DDX48, EIF4AIII, Fal1, KIAA0111
Gene descriptioni

Full gene name according to HGNC.

Eukaryotic translation initiation factor 4A3
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Enzymes
Human disease related genes
Plasma proteins
Potential drug targets
Transporters
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 17
Cytoband q25.3
Chromosome location (bp) 80134369 - 80147151
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

3
Ensembl ENSG00000141543 (version 109)
Entrez gene 9775
HGNC HGNC:18683
UniProt P38919 (UniProt - Evidence at protein level)
neXtProt NX_P38919
GeneCards EIF4A3
Antibodypedia EIF4A3 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

ATP-dependent RNA helicase 1. Involved in pre-mRNA splicing as component of the spliceosome 2, 3, 4, 5, 6. Core component of the splicing-dependent multiprotein exon junction complex (EJC) deposited at splice junctions on mRNAs 7, 8, 9, 10, 11, 12, 13. The EJC is a dynamic structure consisting of core proteins and several peripheral nuclear and cytoplasmic associated factors that join the complex only transiently either during EJC assembly or during subsequent mRNA metabolism. The EJC marks the position of the exon-exon junction in the mature mRNA for the gene expression machinery and the core components remain bound to spliced mRNAs throughout all stages of mRNA metabolism thereby influencing downstream processes including nuclear mRNA export, subcellular mRNA localization, translation efficiency and nonsense-mediated mRNA decay (NMD). Its RNA-dependent ATPase and RNA-helicase activities are induced by CASC3, but abolished in presence of the MAGOH-RBM8A heterodimer, thereby trapping the ATP-bound EJC core onto spliced mRNA in a stable conformation. The inhibition of ATPase activity by the MAGOH-RBM8A heterodimer increases the RNA-binding affinity of the EJC. Involved in translational enhancement of spliced mRNAs after formation of the 80S ribosome complex. Binds spliced mRNA in sequence-independent manner, 20-24 nucleotides upstream of mRNA exon-exon junctions. Shows higher affinity for single-stranded RNA in an ATP-bound core EJC complex than after the ATP is hydrolyzed. Involved in the splicing modulation of BCL2L1/Bcl-X (and probably other apoptotic genes); specifically inhibits formation of proapoptotic isoforms such as Bcl-X(S); the function is different from the established EJC assembly 14. Involved in craniofacial development 15.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Helicase, Hydrolase, RNA-binding
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

mRNA processing, mRNA splicing, mRNA transport, Nonsense-mediated mRNA decay, rRNA processing, Translation regulation, Transport
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

ATP-binding, Nucleotide-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a member of the DEAD box protein family. DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure, such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. The protein encoded by this gene is a nuclear matrix protein. Its amino acid sequence is highly similar to the amino acid sequences of the translation initiation factors eIF4AI and eIF4AII, two other members of the DEAD box protein family. [provided by RefSeq, Jul 2008]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
EIF4A3-206
ENSP00000460439
ENST00000576547
I3L3H2
[Direct mapping] RNA helicase
Show all
   SPOCTOPUS predicted membrane proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Congenital malformations
   Other congenital malformations
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000166 [nucleotide binding]
GO:0003676 [nucleic acid binding]
GO:0003724 [RNA helicase activity]
GO:0004386 [helicase activity]
GO:0005524 [ATP binding]
GO:0005654 [nucleoplasm]
GO:0016787 [hydrolase activity]
Show all
390 aa
44.5 kDa
No 0
EIF4A3-208
ENSP00000497661
ENST00000647795
P38919
[Direct mapping] Eukaryotic initiation factor 4A-III Eukaryotic initiation factor 4A-III, N-terminally processed
Show all
A0A024R8W0
[Target identity:100%; Query identity:100%] RNA helicase
Show all
Enzymes
   ENZYME proteins
   Hydrolases
Transporters
   Primary Active Transporters
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Disease related genes
Potential drug targets
Human disease related genes
   Congenital malformations
   Other congenital malformations
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000166 [nucleotide binding]
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0000398 [mRNA splicing, via spliceosome]
GO:0003676 [nucleic acid binding]
GO:0003723 [RNA binding]
GO:0003724 [RNA helicase activity]
GO:0003729 [mRNA binding]
GO:0004386 [helicase activity]
GO:0005515 [protein binding]
GO:0005524 [ATP binding]
GO:0005634 [nucleus]
GO:0005654 [nucleoplasm]
GO:0005681 [spliceosomal complex]
GO:0005730 [nucleolus]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006364 [rRNA processing]
GO:0006397 [mRNA processing]
GO:0006406 [mRNA export from nucleus]
GO:0006417 [regulation of translation]
GO:0008143 [poly(A) binding]
GO:0008380 [RNA splicing]
GO:0016020 [membrane]
GO:0016607 [nuclear speck]
GO:0016787 [hydrolase activity]
GO:0016887 [ATP hydrolysis activity]
GO:0017148 [negative regulation of translation]
GO:0035145 [exon-exon junction complex]
GO:0045727 [positive regulation of translation]
GO:0048701 [embryonic cranial skeleton morphogenesis]
GO:0051028 [mRNA transport]
GO:0071006 [U2-type catalytic step 1 spliceosome]
GO:0071013 [catalytic step 2 spliceosome]
GO:0098794 [postsynapse]
GO:2000622 [regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
Show all
411 aa
46.9 kDa
No 0
EIF4A3-209
ENSP00000497641
ENST00000649764
P38919
[Direct mapping] Eukaryotic initiation factor 4A-III Eukaryotic initiation factor 4A-III, N-terminally processed
Show all
A0A024R8W0
[Target identity:100%; Query identity:100%] RNA helicase
Show all
Enzymes
   ENZYME proteins
   Hydrolases
Transporters
   Primary Active Transporters
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Disease related genes
Potential drug targets
Human disease related genes
   Congenital malformations
   Other congenital malformations
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000166 [nucleotide binding]
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0000398 [mRNA splicing, via spliceosome]
GO:0003676 [nucleic acid binding]
GO:0003723 [RNA binding]
GO:0003724 [RNA helicase activity]
GO:0003729 [mRNA binding]
GO:0004386 [helicase activity]
GO:0005515 [protein binding]
GO:0005524 [ATP binding]
GO:0005634 [nucleus]
GO:0005654 [nucleoplasm]
GO:0005681 [spliceosomal complex]
GO:0005730 [nucleolus]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006364 [rRNA processing]
GO:0006397 [mRNA processing]
GO:0006406 [mRNA export from nucleus]
GO:0006417 [regulation of translation]
GO:0008143 [poly(A) binding]
GO:0008306 [associative learning]
GO:0008380 [RNA splicing]
GO:0010629 [negative regulation of gene expression]
GO:0014070 [response to organic cyclic compound]
GO:0016020 [membrane]
GO:0016607 [nuclear speck]
GO:0016787 [hydrolase activity]
GO:0016887 [ATP hydrolysis activity]
GO:0017148 [negative regulation of translation]
GO:0030425 [dendrite]
GO:0035145 [exon-exon junction complex]
GO:0035368 [selenocysteine insertion sequence binding]
GO:0035613 [RNA stem-loop binding]
GO:0035640 [exploration behavior]
GO:0043021 [ribonucleoprotein complex binding]
GO:0043025 [neuronal cell body]
GO:0045182 [translation regulator activity]
GO:0045727 [positive regulation of translation]
GO:0048701 [embryonic cranial skeleton morphogenesis]
GO:0051028 [mRNA transport]
GO:0071006 [U2-type catalytic step 1 spliceosome]
GO:0071013 [catalytic step 2 spliceosome]
GO:0072715 [cellular response to selenite ion]
GO:0090394 [negative regulation of excitatory postsynaptic potential]
GO:0098794 [postsynapse]
GO:0098978 [glutamatergic synapse]
GO:0099578 [regulation of translation at postsynapse, modulating synaptic transmission]
GO:1902415 [regulation of mRNA binding]
GO:1904570 [negative regulation of selenocysteine incorporation]
GO:1904574 [negative regulation of selenocysteine insertion sequence binding]
GO:1990416 [cellular response to brain-derived neurotrophic factor stimulus]
GO:1990904 [ribonucleoprotein complex]
GO:2000622 [regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
Show all
411 aa
46.9 kDa
No 0

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