EIF4A3

Eukaryotic initiation factor 4A-III is a protein that in humans is encoded by the EIF4A3 gene.[5][6][7]

EIF4A3
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 2HXY, 2HYI, 2J0Q, 2J0S, 2J0U, 2XB2, 3EX7, 4C9B
Identifiers
Aliases	EIF4A3, DDX48, MUK34, NMP265, NUK34, RCPS, eIF4AIII, eukaryotic translation initiation factor 4A3, Fal1, eIF4A-III, eIF-4A-III
External IDs	OMIM: 608546 MGI: 1923731 HomoloGene: 5602 GeneCards: EIF4A3
Gene location (Human) Chr. Chromosome 17 (human)[1] Band 17q25.3 Start 80,134,369 bp[1] End 80,147,151 bp[1]
Gene location (Mouse) Chr. Chromosome 11 (mouse)[2] Band 11|11 E2 Start 119,288,363 bp[2] End 119,300,089 bp[2]
RNA expression pattern More reference expression data
Gene ontology Molecular function • nucleotide binding • selenocysteine insertion sequence binding • GO:0008026 helicase activity • poly(A) binding • RNA stem-loop binding • GO:0001948 protein binding • nucleic acid binding • ribonucleoprotein complex binding • hydrolase activity • ATP binding • mRNA binding • RNA binding • translation regulator activity Cellular component • cytoplasm • cytosol • nuclear speck • catalytic step 2 spliceosome • membrane • exon-exon junction complex • neuronal cell body • dendrite • spliceosomal complex • cell nucleus • nucleoplasm • nucleolus • glutamatergic synapse • postsynaptic cytosol • ribonucleoprotein • U2-type catalytic step 1 spliceosome Biological process • nuclear-transcribed mRNA poly(A) tail shortening • mRNA transport • negative regulation of translation • associative learning • response to organic cyclic compound • regulation of mRNA binding • mRNA processing • positive regulation of translation • negative regulation of gene expression • negative regulation of excitatory postsynaptic potential • cellular response to brain-derived neurotrophic factor stimulus • cellular response to selenite ion • exploration behavior • RNA secondary structure unwinding • RNA splicing • rRNA processing • embryonic cranial skeleton morphogenesis • negative regulation of selenocysteine insertion sequence binding • nuclear-transcribed mRNA catabolic process, nonsense-mediated decay • regulation of translation • negative regulation of selenocysteine incorporation • mRNA splicing, via spliceosome • RNA export from nucleus • termination of RNA polymerase II transcription • mRNA export from nucleus • mRNA 3'-end processing • positive regulation of transcription from RNA polymerase II promoter • positive regulation of mRNA splicing, via spliceosome • transport • regulation of translation at postsynapse, modulating synaptic transmission Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	9775	192170
Ensembl	ENSG00000141543	ENSMUSG00000025580
UniProt	P38919	Q91VC3
RefSeq (mRNA)	NM_014740	NM_138669
RefSeq (protein)	NP_055555	NP_619610
Location (UCSC)	Chr 17: 80.13 – 80.15 Mb	Chr 11: 119.29 – 119.3 Mb
PubMed search	[3]	[4]
Wikidata
View/Edit Human View/Edit Mouse

Function

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 eIF4A-I and eIF4A-II, two other members of the DEAD box protein family.[7]

References

1. GRCh38: Ensembl release 89: ENSG00000141543 - Ensembl, May 2017
2. GRCm38: Ensembl release 89: ENSMUSG00000025580 - Ensembl, May 2017
3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
5. Holzmann K, Gerner C, Poltl A, Schafer R, Obrist P, Ensinger C, Grimm R, Sauermann G (Feb 2000). "A human common nuclear matrix protein homologous to eukaryotic translation initiation factor 4A". Biochem Biophys Res Commun. 267 (1): 339–44. doi:10.1006/bbrc.1999.1973. PMID 10623621.
6. Chan CC, Dostie J, Diem MD, Feng W, Mann M, Rappsilber J, Dreyfuss G (Jan 2004). "eIF4A3 is a novel component of the exon junction complex". RNA. 10 (2): 200–9. doi:10.1261/rna.5230104. PMC 1370532. PMID 14730019.
7. "Entrez Gene: EIF4A3 eukaryotic translation initiation factor 4A, isoform 3".

Further reading

• Nagase T, Miyajima N, Tanaka A, et al. (1995). "Prediction of the coding sequences of unidentified human genes. III. The coding sequences of 40 new genes (KIAA0081-KIAA0120) deduced by analysis of cDNA clones from human cell line KG-1". DNA Res. 2 (1): 37–43. doi:10.1093/dnares/2.1.37. PMID 7788527.
• Li Q, Imataka H, Morino S, et al. (1999). "Eukaryotic Translation Initiation Factor 4AIII (eIF4AIII) Is Functionally Distinct from eIF4AI and eIF4AII". Mol. Cell. Biol. 19 (11): 7336–46. PMC 84727. PMID 10523622.
• Jurica MS, Licklider LJ, Gygi SR, et al. (2002). "Purification and characterization of native spliceosomes suitable for three-dimensional structural analysis". RNA. 8 (4): 426–39. doi:10.1017/S1355838202021088. PMC 1370266. PMID 11991638.
• Lee S, Baek M, Yang H, et al. (2002). "Identification of genes differentially expressed between gastric cancers and normal gastric mucosa with cDNA microarrays". Cancer Lett. 184 (2): 197–206. doi:10.1016/S0304-3835(02)00197-0. PMID 12127692.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Palacios IM, Gatfield D, St Johnston D, Izaurralde E (2004). "An eIF4AIII-containing complex required for mRNA localization and nonsense-mediated mRNA decay". Nature. 427 (6976): 753–7. doi:10.1038/nature02351. PMID 14973490.
• Ferraiuolo MA, Lee CS, Ler LW, et al. (2004). "A nuclear translation-like factor eIF4AIII is recruited to the mRNA during splicing and functions in nonsense-mediated decay". Proc. Natl. Acad. Sci. U.S.A. 101 (12): 4118–23. doi:10.1073/pnas.0400933101. PMC 384704. PMID 15024115.
• Shibuya T, Tange TØ, Sonenberg N, Moore MJ (2004). "eIF4AIII binds spliced mRNA in the exon junction complex and is essential for nonsense-mediated decay". Nat. Struct. Mol. Biol. 11 (4): 346–51. doi:10.1038/nsmb750. PMID 15034551.
• Jin J, Smith FD, Stark C, et al. (2004). "Proteomic, functional, and domain-based analysis of in vivo 14-3-3 binding proteins involved in cytoskeletal regulation and cellular organization". Curr. Biol. 14 (16): 1436–50. doi:10.1016/j.cub.2004.07.051. PMID 15324660.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Andersen JS, Lam YW, Leung AK, et al. (2005). "Nucleolar proteome dynamics". Nature. 433 (7021): 77–83. doi:10.1038/nature03207. PMID 15635413.
• Xia Q, Kong XT, Zhang GA, et al. (2005). "Proteomics-based identification of DEAD-box protein 48 as a novel autoantigen, a prospective serum marker for pancreatic cancer". Biochem. Biophys. Res. Commun. 330 (2): 526–32. doi:10.1016/j.bbrc.2005.02.181. PMID 15796914.
• Ballut L, Marchadier B, Baguet A, et al. (2005). "The exon junction core complex is locked onto RNA by inhibition of eIF4AIII ATPase activity". Nat. Struct. Mol. Biol. 12 (10): 861–9. doi:10.1038/nsmb990. PMID 16170325.
• Rual JF, Venkatesan K, Hao T, et al. (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.
• Gehring NH, Kunz JB, Neu-Yilik G, et al. (2005). "Exon-junction complex components specify distinct routes of nonsense-mediated mRNA decay with differential cofactor requirements". Mol. Cell. 20 (1): 65–75. doi:10.1016/j.molcel.2005.08.012. PMID 16209946.
• Andersen CB, Ballut L, Johansen JS, et al. (2006). "Structure of the exon junction core complex with a trapped DEAD-box ATPase bound to RNA". Science. 313 (5795): 1968–72. doi:10.1126/science.1131981. PMID 16931718.
• You KT, Li LS, Kim NG, et al. (2007). "Selective Translational Repression of Truncated Proteins from Frameshift Mutation-Derived mRNAs in Tumors". PLoS Biol. 5 (5): e109. doi:10.1371/journal.pbio.0050109. PMC 1854916. PMID 17456004.
• Zhang Z, Krainer AR (2007). "Splicing remodels messenger ribonucleoprotein architecture via eIF4A3-dependent and -independent recruitment of exon junction complex components". Proc. Natl. Acad. Sci. U.S.A. 104 (28): 11574–9. doi:10.1073/pnas.0704946104. PMC 1913901. PMID 17606899.