EIF2B1

From Wikipedia, the free encyclopedia

Eukaryotic translation initiation factor 2B, subunit 1 alpha, 26kDa

Available structures

Ortholog search: PDBe, RCSB

List of PDB id codes
3ECS

Identifiers

Symbols

EIF2B1; EIF2B; EIF2BA

External IDs

OMIM: 606686 MGI: 2384802 HomoloGene: 1080 GeneCards: EIF2B1 Gene

Gene Ontology
Molecular function	• translation initiation factor activity • guanyl-nucleotide exchange factor activity • protein binding • GTP binding • GDP binding • S-methyl-5-thioribose-1-phosphate isomerase activity
Cellular component	• cytoplasm • cytosol • eukaryotic translation initiation factor 2B complex • plasma membrane • membrane
Biological process	• translation • translational initiation • regulation of translational initiation • response to heat • response to glucose stimulus • gene expression • oligodendrocyte development • L-methionine salvage from methylthioadenosine • negative regulation of translational initiation in response to stress • response to peptide hormone stimulus • cellular protein metabolic process • cellular response to stimulus
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 12:
124.1 – 124.12 Mb

Chr 5:
124.57 – 124.58 Mb

PubMed search

Translation initiation factor eIF-2B subunit alpha is a protein that in humans is encoded by the EIF2B1 gene.^[1]

Interactions

EIF2B1 has been shown to interact with EIF2B5.^[2]^[3]

References

↑ "Entrez Gene: EIF2B1 eukaryotic translation initiation factor 2B, subunit 1 alpha, 26kDa".
↑ Ewing, Rob M; Chu Peter, Elisma Fred, Li Hongyan, Taylor Paul, Climie Shane, McBroom-Cerajewski Linda, Robinson Mark D, O'Connor Liam, Li Michael, Taylor Rod, Dharsee Moyez, Ho Yuen, Heilbut Adrian, Moore Lynda, Zhang Shudong, Ornatsky Olga, Bukhman Yury V, Ethier Martin, Sheng Yinglun, Vasilescu Julian, Abu-Farha Mohamed, Lambert Jean-Philippe, Duewel Henry S, Stewart Ian I, Kuehl Bonnie, Hogue Kelly, Colwill Karen, Gladwish Katharine, Muskat Brenda, Kinach Robert, Adams Sally-Lin, Moran Michael F, Morin Gregg B, Topaloglou Thodoros, Figeys Daniel (2007). "Large-scale mapping of human protein–protein interactions by mass spectrometry". Mol. Syst. Biol. (England) 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931. Cite uses deprecated parameters (help)
↑ Anthony, T G; Fabian J R, Kimball S R, Jefferson L S (June 2000). "Identification of domains within the epsilon-subunit of the translation initiation factor eIF2B that are necessary for guanine nucleotide exchange activity and eIF2B holoprotein formation". Biochim. Biophys. Acta (NETHERLANDS) 1492 (1): 56–62. doi:10.1016/S0167-4781(00)00062-2. ISSN 0006-3002. PMID 10858531. Cite uses deprecated parameters (help)

Hershey JW (1991). "Translational control in mammalian cells". Annu. Rev. Biochem. 60: 717–55. doi:10.1146/annurev.bi.60.070191.003441. PMID 1883206.
Flowers KM, Mellor H, Kimball SR, Jefferson LS (1996). "Structure and sequence of the gene encoding the alpha-subunit of rat translation initiation factor-2B". Biochim. Biophys. Acta 1264 (2): 163–7. PMID 7495858.
Welsh GI, Miyamoto S, Price NT et al. (1996). "T-cell activation leads to rapid stimulation of translation initiation factor eIF2B and inactivation of glycogen synthase kinase-3". J. Biol. Chem. 271 (19): 11410–3. doi:10.1074/jbc.271.19.11410. PMID 8626696.
Yang W, Hinnebusch AG (1996). "Identification of a regulatory subcomplex in the guanine nucleotide exchange factor eIF2B that mediates inhibition by phosphorylated eIF2". Mol. Cell. Biol. 16 (11): 6603–16. PMC 231662. PMID 8887689.
Klein U, Ramirez MT, Kobilka BK, von Zastrow M (1997). "A novel interaction between adrenergic receptors and the alpha-subunit of eukaryotic initiation factor 2B". J. Biol. Chem. 272 (31): 19099–102. doi:10.1074/jbc.272.31.19099. PMID 9235896.
Kimball SR, Heinzinger NK, Horetsky RL, Jefferson LS (1998). "Identification of interprotein interactions between the subunits of eukaryotic initiation factors eIF2 and eIF2B". J. Biol. Chem. 273 (5): 3039–44. doi:10.1074/jbc.273.5.3039. PMID 9446619.
Gomez E, Pavitt GD (2000). "Identification of Domains and Residues within the ɛ Subunit of Eukaryotic Translation Initiation Factor 2B (eIF2Bɛ) Required for Guanine Nucleotide Exchange Reveals a Novel Activation Function Promoted by eIF2B Complex Formation". Mol. Cell. Biol. 20 (11): 3965–76. doi:10.1128/MCB.20.11.3965-3976.2000. PMC 85753. PMID 10805739.
Anthony TG, Fabian JR, Kimball SR, Jefferson LS (2000). "Identification of domains within the epsilon-subunit of the translation initiation factor eIF2B that are necessary for guanine nucleotide exchange activity and eIF2B holoprotein formation". Biochim. Biophys. Acta 1492 (1): 56–62. doi:10.1016/S0167-4781(00)00062-2. PMID 10858531.
Williams DD, Price NT, Loughlin AJ, Proud CG (2001). "Characterization of the mammalian initiation factor eIF2B complex as a GDP dissociation stimulator protein". J. Biol. Chem. 276 (27): 24697–703. doi:10.1074/jbc.M011788200. PMID 11323413.
van der Knaap MS (2002). "Mutations in each of the five subunits of translation initiation factor eIF2B can cause leukoencephalopathy with vanishing white matter". Ann. Neurol. 51 (2): 264–70. doi:10.1002/ana.10112. PMID 11835386.
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.
Fogli A, Dionisi-Vici C, Deodato F et al. (2003). "A severe variant of childhood ataxia with central hypomyelination/vanishing white matter leukoencephalopathy related to EIF21B5 mutation". Neurology 59 (12): 1966–8. PMID 12499492.
Fogli A, Rodriguez D, Eymard-Pierre E et al. (2003). "Ovarian Failure Related to Eukaryotic Initiation Factor 2B Mutations". Am. J. Hum. Genet. 72 (6): 1544–50. doi:10.1086/375404. PMC 1180314. PMID 12707859.
van der Knaap MS (2004). "eIF2B-Related Disorders: Antenatal Onset and Involvement of Multiple Organs". Am. J. Hum. Genet. 73 (5): 1199–207. doi:10.1086/379524. PMC 1180499. PMID 14566705.
Richardson JP, Mohammad SS, Pavitt GD (2004). "Mutations Causing Childhood Ataxia with Central Nervous System Hypomyelination Reduce Eukaryotic Initiation Factor 2B Complex Formation and Activity". Mol. Cell. Biol. 24 (6): 2352–63. doi:10.1128/MCB.24.6.2352-2363.2004. PMC 355856. PMID 14993275.
Li W, Wang X, Van Der Knaap MS, Proud CG (2004). "Mutations Linked to Leukoencephalopathy with Vanishing White Matter Impair the Function of the Eukaryotic Initiation Factor 2B Complex in Diverse Ways". Mol. Cell. Biol. 24 (8): 3295–306. doi:10.1128/MCB.24.8.3295-3306.2004. PMC 381664. PMID 15060152.
Van Haren K, van der Voorn JP, Peterson DR et al. (2004). "The life and death of oligodendrocytes in vanishing white matter disease". J. Neuropathol. Exp. Neurol. 63 (6): 618–30. PMID 15217090.
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.
Yin X, Warner DR, Roberts EA et al. (2005). "Identification of novel CBP interacting proteins in embryonic orofacial tissue". Biochem. Biophys. Res. Commun. 329 (3): 1010–7. doi:10.1016/j.bbrc.2005.02.075. PMID 15752756.

Protein biosynthesis: translation (prokaryotic, eukaryotic)

Ribosomal proteins

Initiation factor

Prokaryotic

Archaeal

aIF1
aIF2
aIF5
aIF6

Eukaryotic

eIF1	EIF1AX AY 1B

eIF2	EIF2S1 EIF2S2 EIF2S3 EIF2B1 EIF2B2 EIF2B3 EIF2B4 EIF2B5 EIF-2 kinase

eIF3	EIF3A B C D F G H I J K M S6

eIF4	EIF4A2 A3 B E1 E2 G1 G2 G3 H

eIF5	EIF5A A2 B

eIF6	EIF6

Elongation factor

Prokaryotic	EF-Tu EF-Ts EF-G

Archaeal	aEF-1, aEF-2

Eukaryotic	EEF-1 EEF1A1 EEF1A2 EEF1A3 EEF1B1 EEF1B2 EEF1B3 EEF1B4 EEF1D EEF1E1 EEF1G EEF2

Release factor

Other

Other concepts

see also disorders of translation and posttranslational modification
B bsyn: dna (repl, cycl, reco, repr) · tscr (fact, tcrg, nucl, rnat, rept, ptts) · tltn (risu, pttl, nexn) · dnab, rnab/runp · stru (domn, 1°, 2°, 3°, 4°)

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EIF2B1

Interactions

References

Further reading