Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
The new UniProt website is here! Take me to UniProt BETA

UniProtKB - P38919 (IF4A3_HUMAN)

Entry version 238 (29 Sep 2021)
Sequence version 4 (23 Jan 2007)
Previous versions | rss
Add a publicationFeedback
Protein

Eukaryotic initiation factor 4A-III

Gene

EIF4A3

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

ATP-dependent RNA helicase (PubMed:16170325).

Involved in pre-mRNA splicing as component of the spliceosome (PubMed:11991638, PubMed:22961380, PubMed:28502770, PubMed:28076346, PubMed:29301961).

Core component of the splicing-dependent multiprotein exon junction complex (EJC) deposited at splice junctions on mRNAs (PubMed:16209946, PubMed:16170325, PubMed:16314458, PubMed:16923391, PubMed:16931718, PubMed:19033377, PubMed:20479275).

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 (PubMed:22203037).

Involved in craniofacial development (PubMed:24360810).

17 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

The ATPase activity is increased some 4-fold in the presence of RNA.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei60ATP; via carbonyl oxygenCombined sources4 Publications1
Binding sitei65ATPCombined sources4 Publications1
Binding sitei342ATPCombined sources4 Publications1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi85 – 90ATPCombined sources4 Publications6
Nucleotide bindingi367 – 371ATPCombined sources4 Publications5

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionHelicase, Hydrolase, RNA-binding
Biological processmRNA processing, mRNA splicing, mRNA transport, Nonsense-mediated mRNA decay, rRNA processing, Translation regulation, Transport
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		3.6.4.13, 2681

Pathway Commons web resource for biological pathway data

More...PathwayCommonsi		P38919

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-1169408, ISG15 antiviral mechanism
R-HSA-159236, Transport of Mature mRNA derived from an Intron-Containing Transcript
R-HSA-429947, Deadenylation of mRNA
R-HSA-72163, mRNA Splicing - Major Pathway
R-HSA-72187, mRNA 3'-end processing
R-HSA-73856, RNA Polymerase II Transcription Termination
R-HSA-9010553, Regulation of expression of SLITs and ROBOs
R-HSA-975957, Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC)

Protein family/group databases

Transport Classification Database

More...TCDBi		3.A.18.1.1, the nuclear mrna exporter (mrna-e) family

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Eukaryotic initiation factor 4A-III (EC:3.6.4.133 Publications)
Short name:
eIF-4A-III
Short name:
eIF4A-III
Alternative name(s):
ATP-dependent RNA helicase DDX48
ATP-dependent RNA helicase eIF4A-3
DEAD box protein 48
Eukaryotic initiation factor 4A-like NUK-34
Eukaryotic translation initiation factor 4A isoform 3
Nuclear matrix protein 265
Short name:
NMP 265
Short name:
hNMP 265
Cleaved into the following chain:
Eukaryotic initiation factor 4A-III, N-terminally processed
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:EIF4A3
Synonyms:DDX48, KIAA0111
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000005640 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 17

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:18683, EIF4A3

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		608546, gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_P38919

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000141543

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Cytoplasm, Nucleus, Spliceosome

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section provides information on the disease(s) associated with genetic variations in a given protein. The information is extracted from the scientific literature and diseases that are also described in the <a href="http://www.ncbi.nlm.nih.gov/sites/entrez?db=omim">OMIM</a> database are represented with a <a href="http://www.uniprot.org/diseases">controlled vocabulary</a> in the following way:<p><a href='/help/involvement_in_disease' target='_top'>More...</a></p>Involvement in diseasei

Richieri-Costa-Pereira syndrome (RCPS)1 Publication
The disease is caused by variants affecting the gene represented in this entry. EIF4A3 mutations resulting in Richieri-Costa-Pereira syndrome include a repeat expansion of 18 or 20 nucleotides in the 5' untranslated region. Affected individuals have 14 to 16 repeats, while healthy individuals have 3 to 12 repeats (PubMed:24360810).1 Publication
Disease descriptionA syndrome characterized by a unique pattern of anomalies consisting of microstomia, micrognathia, abnormal fusion of mandible, cleft palate/Robin sequence, absence of central lower incisors, minor ears anomalies, hypoplastic first ray, abnormal tibiae, hypoplastic halluces, and clubfeet. Learning disability is also a common finding.
Related information in OMIM
Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural variantiVAR_071090270D → G in RCPS. 1 PublicationCorresponds to variant dbSNP:rs587777204EnsemblClinVar.1

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi88K → A: ATPase activity is not increased by the presence of CASC3. Does not prevent EJC formation. Prevents the EJC disassembly. 1 Publication1
Mutagenesisi99C → Q: No effect on interaction with CWC22. 1 Publication1
Mutagenesisi270D → K: Loss of CWC22-binding and loss of incorporation into EJCs; when associated with K-273. 1 Publication1
Mutagenesisi273D → K: Loss of CWC22-binding and loss of incorporation into EJCs; when associated with K-270. 1 Publication1
Mutagenesisi276 – 277TI → GD: Loss of CWC22-binding and loss of incorporation into EJCs. 1 Publication2
Mutagenesisi300 – 301AN → RD: Decreased interaction with CWC22. 1 Publication2
Mutagenesisi301 – 303NFT → LAG: Loss of CWC22-binding and loss of incorporation into EJCs. 1 Publication3
Mutagenesisi334T → V: Reduced incorporation into EJCs. 1 Publication1
Mutagenesisi401D → K: Loss of incorporation into EJCs; when associated with R-402. 1 Publication1
Mutagenesisi402E → R: Loss of incorporation into EJCs; when associated with K-401. 1 Publication1

Keywords - Diseasei

Disease variant

Organism-specific databases

DisGeNET

More...DisGeNETi		9775

MalaCards human disease database

More...MalaCardsi		EIF4A3
MIMi268305, phenotype

Open Targets

More...OpenTargetsi		ENSG00000141543

Orphanet; a database dedicated to information on rare diseases and orphan drugs

More...Orphaneti		3102, Richieri Costa-Pereira syndrome

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA162384945

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		P38919, Tbio

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL4105832

Genetic variation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		EIF4A3

Domain mapping of disease mutations (DMDM)

More...DMDMi		20532400

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004232671 – 411Eukaryotic initiation factor 4A-IIIAdd BLAST411
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved; alternateCombined sources1 Publication
ChainiPRO_00000549422 – 411Eukaryotic initiation factor 4A-III, N-terminally processedAdd BLAST410

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei1N-acetylmethionineCombined sources1
Modified residuei2N-acetylalanine; in Eukaryotic initiation factor 4A-III, N-terminally processedCombined sources1 Publication1
Modified residuei10PhosphoserineBy similarity1
Modified residuei12PhosphoserineCombined sources1
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section describes <strong>covalent linkages</strong> of various types formed <strong>between two proteins (interchain cross-links)</strong> or <strong>between two parts of the same protein (intrachain cross-links)</strong>, except the disulfide bonds that are annotated in the <a href="http://www.uniprot.org/manual/disulfid">'Disulfide bond'</a> subsection.<p><a href='/help/crosslnk' target='_top'>More...</a></p>Cross-linki19Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources
Modified residuei124N6-acetyllysineBy similarity1
Cross-linki152Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Modified residuei163PhosphothreonineCombined sources1
Modified residuei198N6-acetyllysineBy similarity1
Modified residuei296N6-acetyllysineCombined sources1
Cross-linki314Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources
Modified residuei321N6-acetyllysineCombined sources1
Cross-linki374Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Cross-linki382Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)Combined sources

Keywords - PTMi

Acetylation, Isopeptide bond, Phosphoprotein, Ubl conjugation

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		P38919

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		P38919

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		P38919

MaxQB - The MaxQuant DataBase

More...MaxQBi		P38919

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		P38919

PeptideAtlas

More...PeptideAtlasi		P38919

PRoteomics IDEntifications database

More...PRIDEi		P38919

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		55305

2D gel databases

REPRODUCTION-2DPAGE

More...REPRODUCTION-2DPAGEi		IPI00009328

PTM databases

GlyGen: Computational and Informatics Resources for Glycoscience

More...GlyGeni		P38919, 2 sites, 1 O-linked glycan (2 sites)

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		P38919

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		P38919

SwissPalm database of S-palmitoylation events

More...SwissPalmi		P38919

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Ubiquitously expressed.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000141543, Expressed in right adrenal gland and 248 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		P38919, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		P38919, HS

Organism-specific databases

Human Protein Atlas

More...HPAi		ENSG00000141543, Low tissue specificity

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Identified in the spliceosome C complex (PubMed:11991638, PubMed:22961380, PubMed:28502770, PubMed:28076346, PubMed:29301961). Core component of the mRNA splicing-dependent exon junction complex (EJC); the core complex contains CASC3, EIF4A3, MAGOH or MAGOHB, and RBM8A (PubMed:15034551, PubMed:14730019, PubMed:16170325, PubMed:16314458, PubMed:23917022, PubMed:16923391, PubMed:16931718, PubMed:19033377, PubMed:20479275).

Interacts with CASC3, MAGOH, NXF1, RBM8A and ALYREF/THOC4 (PubMed:14730019, PubMed:16170325, PubMed:16495234, PubMed:22961380). May interact with NOM1.

Interacts with POLDIP3 (PubMed:18423201).

Interacts with CWC22 and PRPF19 in an RNA-independent manner (PubMed:22959432, PubMed:22961380, PubMed:23236153, PubMed:24218557). Direct interaction with CWC22 is mediated by the helicase C-terminal domain (PubMed:22959432, PubMed:24218557). Full interaction with CWC22 occurs only when EIF4A3 is not part of the EJC and prevents EIF4A3 binding to RNA.

Identified in a complex composed of the EJC core, UPF3B and UPF2. The EJC core can also interact with UPF3A (in vitro) (PubMed:20479275).

Interacts with NCBP3 (PubMed:26382858).

Interacts with NRDE2 (PubMed:30538148).

21 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Hide details

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		115119, 411 interactors

ComplexPortal: manually curated resource of macromolecular complexes

More...ComplexPortali		CPX-1941, Exon junction core complex, MAGOH variant
CPX-682, Exon junction core complex, MAGOHB variant

CORUM comprehensive resource of mammalian protein complexes

More...CORUMi		P38919

Database of interacting proteins

More...DIPi		DIP-33218N

Protein interaction database and analysis system

More...IntActi		P38919, 206 interactors

Molecular INTeraction database

More...MINTi		P38919

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000269349

Chemistry databases

BindingDB database of measured binding affinities

More...BindingDBi		P38919

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		P38919, protein

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1411
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		P38919

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		P38919

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini69 – 239Helicase ATP-bindingPROSITE-ProRule annotationAdd BLAST171
Domaini250 – 411Helicase C-terminalPROSITE-ProRule annotationAdd BLAST162

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi38 – 66Q motifAdd BLAST29
Motifi187 – 190DEAD boxCurated4

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the DEAD box helicase family. eIF4A subfamily.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0328, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00940000155037

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_003041_1_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		P38919

Identification of Orthologs from Complete Genome Data

More...OMAi		YENHTAE

Database of Orthologous Groups

More...OrthoDBi		726081at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		P38919

TreeFam database of animal gene trees

More...TreeFami		TF300466

Family and domain databases

Database of protein disorder

More...DisProti		DP02069

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.40.50.300, 2 hits

Intrinsically Disordered proteins with Extensive Annotations and Literature

More...IDEALi		IID00370

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR011545, DEAD/DEAH_box_helicase_dom
IPR014001, Helicase_ATP-bd
IPR001650, Helicase_C
IPR027417, P-loop_NTPase
IPR000629, RNA-helicase_DEAD-box_CS
IPR014014, RNA_helicase_DEAD_Q_motif

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00270, DEAD, 1 hit
PF00271, Helicase_C, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00487, DEXDc, 1 hit
SM00490, HELICc, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF52540, SSF52540, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00039, DEAD_ATP_HELICASE, 1 hit
PS51192, HELICASE_ATP_BIND_1, 1 hit
PS51194, HELICASE_CTER, 1 hit
PS51195, Q_MOTIF, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequence (1+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

P38919-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MATTATMATS GSARKRLLKE EDMTKVEFET SEEVDVTPTF DTMGLREDLL 
        60         70         80         90        100
RGIYAYGFEK PSAIQQRAIK QIIKGRDVIA QSQSGTGKTA TFSISVLQCL 
       110        120        130        140        150
DIQVRETQAL ILAPTRELAV QIQKGLLALG DYMNVQCHAC IGGTNVGEDI 
       160        170        180        190        200
RKLDYGQHVV AGTPGRVFDM IRRRSLRTRA IKMLVLDEAD EMLNKGFKEQ 
       210        220        230        240        250
IYDVYRYLPP ATQVVLISAT LPHEILEMTN KFMTDPIRIL VKRDELTLEG 
       260        270        280        290        300
IKQFFVAVER EEWKFDTLCD LYDTLTITQA VIFCNTKRKV DWLTEKMREA 
       310        320        330        340        350
NFTVSSMHGD MPQKERESIM KEFRSGASRV LISTDVWARG LDVPQVSLII 
       360        370        380        390        400
NYDLPNNREL YIHRIGRSGR YGRKGVAINF VKNDDIRILR DIEQYYSTQI 
       410 
DEMPMNVADL I
Length:411
Mass (Da):46,871
Last modified:January 23, 2007 - v4
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i3A21888CA96CA5EA
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
I3L3H2I3L3H2_HUMAN
RNA helicase
EIF4A3
390Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence BAA04879 differs from that shown. Reason: Erroneous initiation. Extended N-terminus.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti210P → S in CAA56074 (Ref. 1) Curated1
Sequence conflicti370R → Q in CAA56074 (Ref. 1) Curated1

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_071090270D → G in RCPS. 1 PublicationCorresponds to variant dbSNP:rs587777204EnsemblClinVar.1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
X79538 mRNA Translation: CAA56074.1
D21853 mRNA Translation: BAA04879.2 Different initiation.
AK290608 mRNA Translation: BAF83297.1
CR456750 mRNA Translation: CAG33031.1
AC087741 Genomic DNA No translation available.
CH471099 Genomic DNA Translation: EAW89584.1
BC003662 mRNA Translation: AAH03662.1
BC004386 mRNA Translation: AAH04386.1
BC011151 mRNA Translation: AAH11151.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS11767.1

Protein sequence database of the Protein Information Resource

More...PIRi		S45142

NCBI Reference Sequences

More...RefSeqi		NP_055555.1, NM_014740.3

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000647795; ENSP00000497661; ENSG00000141543
ENST00000649764; ENSP00000497641; ENSG00000141543

Database of genes from NCBI RefSeq genomes

More...GeneIDi		9775

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:9775

UCSC genome browser

More...UCSCi		uc002jxs.3, human

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X79538 mRNA Translation: CAA56074.1
D21853 mRNA Translation: BAA04879.2 Different initiation.
AK290608 mRNA Translation: BAF83297.1
CR456750 mRNA Translation: CAG33031.1
AC087741 Genomic DNA No translation available.
CH471099 Genomic DNA Translation: EAW89584.1
BC003662 mRNA Translation: AAH03662.1
BC004386 mRNA Translation: AAH04386.1
BC011151 mRNA Translation: AAH11151.1
CCDSiCCDS11767.1
PIRiS45142
RefSeqiNP_055555.1, NM_014740.3

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2HXYX-ray3.30A/B/C/D23-411[»]
2HYIX-ray2.30C/I1-411[»]
2J0QX-ray3.20A/B2-411[»]
2J0SX-ray2.21A2-411[»]
2J0UX-ray3.00A/B38-411[»]
2XB2X-ray3.40A/X1-411[»]
3EX7X-ray2.30C/H1-411[»]
4C9BX-ray2.00A1-411[»]
5MQFelectron microscopy5.90p1-411[»]
5XJCelectron microscopy3.60u1-411[»]
5YZGelectron microscopy4.10u1-411[»]
6ICZelectron microscopy3.00u1-411[»]
6QDVelectron microscopy3.30722-404[»]
6YVHX-ray3.19H/J/K/L246-411[»]
7A5Pelectron microscopy5.00y1-411[»]
SMRiP38919
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi115119, 411 interactors
ComplexPortaliCPX-1941, Exon junction core complex, MAGOH variant
CPX-682, Exon junction core complex, MAGOHB variant
CORUMiP38919
DIPiDIP-33218N
IntActiP38919, 206 interactors
MINTiP38919
STRINGi9606.ENSP00000269349

Chemistry databases

BindingDBiP38919
ChEMBLiCHEMBL4105832

Protein family/group databases

TCDBi3.A.18.1.1, the nuclear mrna exporter (mrna-e) family

PTM databases

GlyGeniP38919, 2 sites, 1 O-linked glycan (2 sites)
iPTMnetiP38919
PhosphoSitePlusiP38919
SwissPalmiP38919

Genetic variation databases

BioMutaiEIF4A3
DMDMi20532400

2D gel databases

REPRODUCTION-2DPAGEiIPI00009328

Proteomic databases

EPDiP38919
jPOSTiP38919
MassIVEiP38919
MaxQBiP38919
PaxDbiP38919
PeptideAtlasiP38919
PRIDEiP38919
ProteomicsDBi55305

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		19760, 241 antibodies

The DNASU plasmid repository

More...DNASUi		9775

Genome annotation databases

EnsembliENST00000647795; ENSP00000497661; ENSG00000141543
ENST00000649764; ENSP00000497641; ENSG00000141543
GeneIDi9775
KEGGihsa:9775
UCSCiuc002jxs.3, human

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		9775
DisGeNETi9775

GeneCards: human genes, protein and diseases

More...GeneCardsi		EIF4A3
HGNCiHGNC:18683, EIF4A3
HPAiENSG00000141543, Low tissue specificity
MalaCardsiEIF4A3
MIMi268305, phenotype
608546, gene
neXtProtiNX_P38919
OpenTargetsiENSG00000141543
Orphaneti3102, Richieri Costa-Pereira syndrome
PharmGKBiPA162384945
VEuPathDBiHostDB:ENSG00000141543

Human Unidentified Gene-Encoded large proteins database

More...HUGEi		Search...

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG0328, Eukaryota
GeneTreeiENSGT00940000155037
HOGENOMiCLU_003041_1_0_1
InParanoidiP38919
OMAiYENHTAE
OrthoDBi726081at2759
PhylomeDBiP38919
TreeFamiTF300466

Enzyme and pathway databases

BRENDAi3.6.4.13, 2681
PathwayCommonsiP38919
ReactomeiR-HSA-1169408, ISG15 antiviral mechanism
R-HSA-159236, Transport of Mature mRNA derived from an Intron-Containing Transcript
R-HSA-429947, Deadenylation of mRNA
R-HSA-72163, mRNA Splicing - Major Pathway
R-HSA-72187, mRNA 3'-end processing
R-HSA-73856, RNA Polymerase II Transcription Termination
R-HSA-9010553, Regulation of expression of SLITs and ROBOs
R-HSA-975957, Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC)

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		9775, 800 hits in 990 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		EIF4A3, human
EvolutionaryTraceiP38919

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		EIF4A3

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		9775
PharosiP38919, Tbio

Protein Ontology

More...PROi		PR:P38919
RNActiP38919, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000141543, Expressed in right adrenal gland and 248 other tissues
ExpressionAtlasiP38919, baseline and differential
GenevisibleiP38919, HS

Family and domain databases

DisProtiDP02069
Gene3Di3.40.50.300, 2 hits
IDEALiIID00370
InterProiView protein in InterPro
IPR011545, DEAD/DEAH_box_helicase_dom
IPR014001, Helicase_ATP-bd
IPR001650, Helicase_C
IPR027417, P-loop_NTPase
IPR000629, RNA-helicase_DEAD-box_CS
IPR014014, RNA_helicase_DEAD_Q_motif
PfamiView protein in Pfam
PF00270, DEAD, 1 hit
PF00271, Helicase_C, 1 hit
SMARTiView protein in SMART
SM00487, DEXDc, 1 hit
SM00490, HELICc, 1 hit
SUPFAMiSSF52540, SSF52540, 1 hit
PROSITEiView protein in PROSITE
PS00039, DEAD_ATP_HELICASE, 1 hit
PS51192, HELICASE_ATP_BIND_1, 1 hit
PS51194, HELICASE_CTER, 1 hit
PS51195, Q_MOTIF, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiIF4A3_HUMAN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P38919
Secondary accession number(s): Q15033, Q6IBQ2, Q96A18
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1995
Last sequence update: January 23, 2007
Last modified: September 29, 2021
This is version 238 of the entry and version 4 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing, Reference proteome

Documents

  1. Translation initiation factors
    List of translation initiation factor entries
  2. Human chromosome 17
    Human chromosome 17: entries, gene names and cross-references to MIM
  3. Human entries with genetic variants
    List of human entries with genetic variants
  4. Human variants curated from literature reports
    Index of human variants curated from literature reports
  5. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  6. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  7. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again