GenomeNet

Database: UniProt
Entry: EI2BB_HUMAN
LinkDB: EI2BB_HUMAN
Original site: EI2BB_HUMAN 
ID   EI2BB_HUMAN             Reviewed;         351 AA.
AC   P49770; O43201;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2000, sequence version 3.
DT   27-MAR-2024, entry version 195.
DE   RecName: Full=Translation initiation factor eIF2B subunit beta;
DE   AltName: Full=S20I15;
DE   AltName: Full=S20III15;
DE   AltName: Full=eIF2B GDP-GTP exchange factor subunit beta;
GN   Name=EIF2B2; Synonyms=EIF2BB;
OS   Homo sapiens (Human).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Homo.
OX   NCBI_TaxID=9606;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Brain;
RA   Yu W., Sarginson J., Gibbs R.A.;
RL   Submitted (NOV-1997) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Brain;
RX   PubMed=7596406; DOI=10.1038/375754a0;
RA   Sherrington R., Rogaev E.I., Liang Y., Rogaeva E.A., Levesque G., Ikeda M.,
RA   Chi H., Lin C., Li G., Holman K., Tsuda T., Mar L., Foncin J.-F.,
RA   Bruni A.C., Montesi M.P., Sorbi S., Rainero I., Pinessi L., Nee L.,
RA   Chumakov I., Pollen D., Brookes A., Sanseau P., Polinsky R.J., Wasco W.,
RA   da Silva H.A.R., Haines J.L., Pericak-Vance M.A., Tanzi R.E., Roses A.D.,
RA   Fraser P.E., Rommens J.M., St George-Hyslop P.H.;
RT   "Cloning of a gene bearing missense mutations in early-onset familial
RT   Alzheimer's disease.";
RL   Nature 375:754-760(1995).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=12508121; DOI=10.1038/nature01348;
RA   Heilig R., Eckenberg R., Petit J.-L., Fonknechten N., Da Silva C.,
RA   Cattolico L., Levy M., Barbe V., De Berardinis V., Ureta-Vidal A.,
RA   Pelletier E., Vico V., Anthouard V., Rowen L., Madan A., Qin S., Sun H.,
RA   Du H., Pepin K., Artiguenave F., Robert C., Cruaud C., Bruels T.,
RA   Jaillon O., Friedlander L., Samson G., Brottier P., Cure S., Segurens B.,
RA   Aniere F., Samain S., Crespeau H., Abbasi N., Aiach N., Boscus D.,
RA   Dickhoff R., Dors M., Dubois I., Friedman C., Gouyvenoux M., James R.,
RA   Madan A., Mairey-Estrada B., Mangenot S., Martins N., Menard M., Oztas S.,
RA   Ratcliffe A., Shaffer T., Trask B., Vacherie B., Bellemere C., Belser C.,
RA   Besnard-Gonnet M., Bartol-Mavel D., Boutard M., Briez-Silla S.,
RA   Combette S., Dufosse-Laurent V., Ferron C., Lechaplais C., Louesse C.,
RA   Muselet D., Magdelenat G., Pateau E., Petit E., Sirvain-Trukniewicz P.,
RA   Trybou A., Vega-Czarny N., Bataille E., Bluet E., Bordelais I., Dubois M.,
RA   Dumont C., Guerin T., Haffray S., Hammadi R., Muanga J., Pellouin V.,
RA   Robert D., Wunderle E., Gauguet G., Roy A., Sainte-Marthe L., Verdier J.,
RA   Verdier-Discala C., Hillier L.W., Fulton L., McPherson J., Matsuda F.,
RA   Wilson R., Scarpelli C., Gyapay G., Wincker P., Saurin W., Quetier F.,
RA   Waterston R., Hood L., Weissenbach J.;
RT   "The DNA sequence and analysis of human chromosome 14.";
RL   Nature 421:601-607(2003).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Lung;
RX   PubMed=15489334; DOI=10.1101/gr.2596504;
RG   The MGC Project Team;
RT   "The status, quality, and expansion of the NIH full-length cDNA project:
RT   the Mammalian Gene Collection (MGC).";
RL   Genome Res. 14:2121-2127(2004).
RN   [5]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=21269460; DOI=10.1186/1752-0509-5-17;
RA   Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T.,
RA   Bennett K.L., Superti-Furga G., Colinge J.;
RT   "Initial characterization of the human central proteome.";
RL   BMC Syst. Biol. 5:17-17(2011).
RN   [6]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=22814378; DOI=10.1073/pnas.1210303109;
RA   Van Damme P., Lasa M., Polevoda B., Gazquez C., Elosegui-Artola A.,
RA   Kim D.S., De Juan-Pardo E., Demeyer K., Hole K., Larrea E., Timmerman E.,
RA   Prieto J., Arnesen T., Sherman F., Gevaert K., Aldabe R.;
RT   "N-terminal acetylome analyses and functional insights of the N-terminal
RT   acetyltransferase NatB.";
RL   Proc. Natl. Acad. Sci. U.S.A. 109:12449-12454(2012).
RN   [7]
RP   FUNCTION, ACTIVITY REGULATION, IDENTIFICATION BY MASS SPECTROMETRY, AND
RP   IDENTIFICATION IN THE EIF2B COMPLEX.
RX   PubMed=25858979; DOI=10.1126/science.aaa6986;
RA   Sekine Y., Zyryanova A., Crespillo-Casado A., Fischer P.M., Harding H.P.,
RA   Ron D.;
RT   "Stress responses. Mutations in a translation initiation factor identify
RT   the target of a memory-enhancing compound.";
RL   Science 348:1027-1030(2015).
RN   [8]
RP   FUNCTION, AND IDENTIFICATION IN THE EIF2B COMPLEX.
RX   PubMed=27023709; DOI=10.1007/s10969-016-9203-3;
RA   Kashiwagi K., Shigeta T., Imataka H., Ito T., Yokoyama S.;
RT   "Expression, purification, and crystallization of Schizosaccharomyces pombe
RT   eIF2B.";
RL   J. Struct. Funct. Genomics 17:33-38(2016).
RN   [9] {ECO:0007744|PDB:6K71, ECO:0007744|PDB:6K72}
RP   STRUCTURE BY ELECTRON MICROSCOPY (4.30 ANGSTROMS) IN COMPLEX WITH THE EIF2
RP   COMPLEX, FUNCTION, SUBUNIT, AND IDENTIFICATION IN THE EIF2B COMPLEX.
RX   PubMed=31048492; DOI=10.1126/science.aaw4104;
RA   Kashiwagi K., Yokoyama T., Nishimoto M., Takahashi M., Sakamoto A.,
RA   Yonemochi M., Shirouzu M., Ito T.;
RT   "Structural basis for eIF2B inhibition in integrated stress response.";
RL   Science 364:495-499(2019).
RN   [10]
RP   VARIANTS VWM2 GLY-213; ARG-273; ASP-316 AND VAL-329.
RX   PubMed=11704758; DOI=10.1038/ng764;
RA   Leegwater P.A.J., Vermeulen G., Koenst A.A.M., Naidu S., Mulders J.,
RA   Visser A., Kersbergen P., Mobach D., Fonds D., van Berkel C.G.M.,
RA   Lemmers R.J.L.F., Frants R.R., Oudejans C.B.M., Schutgens R.B.H.,
RA   Pronk J.C., van der Knaap M.S.;
RT   "Subunits of the translation initiation factor eIF2B are mutant in
RT   leukoencephalopathy with vanishing white matter.";
RL   Nat. Genet. 29:383-388(2001).
RN   [11]
RP   VARIANTS VWM2 PHE-171 AND GLY-213.
RX   PubMed=12707859; DOI=10.1086/375404;
RA   Fogli A., Rodriguez D., Eymard-Pierre E., Bouhour F., Labauge P.,
RA   Meaney B.F., Zeesman S., Kaneski C.R., Schiffmann R., Boespflug-Tanguy O.;
RT   "Ovarian failure related to eukaryotic initiation factor 2B mutations.";
RL   Am. J. Hum. Genet. 72:1544-1550(2003).
RN   [12]
RP   VARIANTS VWM2 PHE-171; SER-196; VAL-200 AND GLY-213.
RX   PubMed=15776425; DOI=10.1002/humu.9325;
RA   Ohlenbusch A., Henneke M., Brockmann K., Goerg M., Hanefeld F.,
RA   Kohlschutter A., Gartner J.;
RT   "Identification of ten novel mutations in patients with eIF2B-related
RT   disorders.";
RL   Hum. Mutat. 25:411-411(2005).
RN   [13]
RP   VARIANT VWM2 GLU-85.
RX   PubMed=21484434; DOI=10.1007/s10048-011-0284-7;
RA   Matsukawa T., Wang X., Liu R., Wortham N.C., Onuki Y., Kubota A., Hida A.,
RA   Kowa H., Fukuda Y., Ishiura H., Mitsui J., Takahashi Y., Aoki S.,
RA   Takizawa S., Shimizu J., Goto J., Proud C.G., Tsuji S.;
RT   "Adult-onset leukoencephalopathies with vanishing white matter with novel
RT   missense mutations in EIF2B2, EIF2B3, and EIF2B5.";
RL   Neurogenetics 12:259-261(2011).
RN   [14]
RP   VARIANT VWM2 TYR-268.
RX   PubMed=22285377; DOI=10.1016/j.gene.2011.12.047;
RA   Alsalem A., Shaheen R., Alkuraya F.S.;
RT   "Vanishing white matter disease caused by EIF2B2 mutation with the
RT   presentation of an adrenoleukodystrophy phenotype.";
RL   Gene 496:141-143(2012).
RN   [15]
RP   VARIANT VWM2 GLY-213.
RX   PubMed=22729508; DOI=10.1007/s10072-012-1129-3;
RA   Sambati L., Agati R., Bacci A., Bianchi S., Capellari S.;
RT   "Vanishing white matter disease: an Italian case with A638G mutation in
RT   exon 5 of EIF2B2 gene, an unusual early onset and a long course.";
RL   Neurol. Sci. 34:1235-1238(2013).
RN   [16]
RP   VARIANT VAL-127.
RX   PubMed=26740508; DOI=10.1136/jmedgenet-2015-103568;
RA   Lopes F., Barbosa M., Ameur A., Soares G., de Sa J., Dias A.I.,
RA   Oliveira G., Cabral P., Temudo T., Calado E., Cruz I.F., Vieira J.P.,
RA   Oliveira R., Esteves S., Sauer S., Jonasson I., Syvaenen A.C.,
RA   Gyllensten U., Pinto D., Maciel P.;
RT   "Identification of novel genetic causes of Rett syndrome-like phenotypes.";
RL   J. Med. Genet. 53:190-199(2016).
CC   -!- FUNCTION: Acts as a component of the translation initiation factor 2B
CC       (eIF2B) complex, which catalyzes the exchange of GDP for GTP on
CC       eukaryotic initiation factor 2 (eIF2) gamma subunit (PubMed:25858979,
CC       PubMed:27023709, PubMed:31048492). Its guanine nucleotide exchange
CC       factor activity is repressed when bound to eIF2 complex phosphorylated
CC       on the alpha subunit, thereby limiting the amount of methionyl-
CC       initiator methionine tRNA available to the ribosome and consequently
CC       global translation is repressed (PubMed:25858979, PubMed:31048492).
CC       {ECO:0000269|PubMed:25858979, ECO:0000269|PubMed:27023709,
CC       ECO:0000269|PubMed:31048492}.
CC   -!- ACTIVITY REGULATION: Activated by the chemical integrated stress
CC       response (ISR) inhibitor ISRIB which stimulates guanine nucleotide
CC       exchange factor activity for both phosphorylated and unphosphorylated
CC       eIF2. {ECO:0000269|PubMed:25858979}.
CC   -!- SUBUNIT: Component of the translation initiation factor 2B (eIF2B)
CC       complex which is a heterodecamer of two sets of five different
CC       subunits: alpha, beta, gamma, delta and epsilon. Subunits alpha, beta
CC       and delta comprise a regulatory subcomplex and subunits epsilon and
CC       gamma comprise a catalytic subcomplex (PubMed:25858979,
CC       PubMed:27023709, PubMed:31048492). Within the complex, the hexameric
CC       regulatory complex resides at the center, with the two heterodimeric
CC       catalytic subcomplexes bound on opposite sides (PubMed:31048492).
CC       {ECO:0000269|PubMed:25858979, ECO:0000269|PubMed:27023709,
CC       ECO:0000269|PubMed:31048492}.
CC   -!- INTERACTION:
CC       P49770; Q96LT7: C9orf72; NbExp=6; IntAct=EBI-718773, EBI-2961725;
CC       P49770; Q9UI10: EIF2B4; NbExp=7; IntAct=EBI-718773, EBI-2340132;
CC   -!- SUBCELLULAR LOCATION: Cytoplasm, cytosol
CC       {ECO:0000250|UniProtKB:Q9UT76}.
CC   -!- DISEASE: Leukoencephalopathy with vanishing white matter 2 (VWM2)
CC       [MIM:620312]: An autosomal recessive brain disease characterized by
CC       neurological features including progressive cerebellar ataxia,
CC       spasticity, and cognitive deficits. Brain imaging shows abnormal white
CC       matter that vanishes over time and is replaced by cerebrospinal fluid.
CC       Disease severity ranges from fatal infantile forms to adult forms
CC       without neurological deterioration. The disease is progressive with, in
CC       most individuals, additional episodes of rapid deterioration following
CC       febrile infections or minor head trauma. Death may occurs after a
CC       variable period after disease onset, usually following an episode of
CC       fever and coma. A subset of affected females with milder forms of the
CC       disease who survive to adolescence exhibit ovarian dysfunction. This
CC       variant of the disorder is called ovarioleukodystrophy.
CC       {ECO:0000269|PubMed:11704758, ECO:0000269|PubMed:12707859,
CC       ECO:0000269|PubMed:15776425, ECO:0000269|PubMed:21484434,
CC       ECO:0000269|PubMed:22285377, ECO:0000269|PubMed:22729508}. Note=The
CC       disease is caused by variants affecting the gene represented in this
CC       entry.
CC   -!- SIMILARITY: Belongs to the eIF-2B alpha/beta/delta subunits family.
CC       {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAC42002.1; Type=Frameshift; Evidence={ECO:0000305};
CC   -!- WEB RESOURCE: Name=Mendelian genes eukaryotic translation initiation
CC       factor 2B, subunit 2 beta, 39kDa (EIF2B2); Note=Leiden Open Variation
CC       Database (LOVD);
CC       URL="https://databases.lovd.nl/shared/genes/EIF2B2";
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DR   EMBL; AF035280; AAB88176.1; -; mRNA.
DR   EMBL; L40395; AAC42002.1; ALT_FRAME; mRNA.
DR   EMBL; AC006530; AAD30183.1; -; Genomic_DNA.
DR   EMBL; BC011750; AAH11750.1; -; mRNA.
DR   CCDS; CCDS9836.1; -.
DR   RefSeq; NP_055054.1; NM_014239.3.
DR   PDB; 6CAJ; EM; 2.80 A; C/D=2-351.
DR   PDB; 6EZO; EM; 4.10 A; C/D=5-351.
DR   PDB; 6K71; EM; 4.30 A; C/D=1-351.
DR   PDB; 6K72; EM; 4.60 A; C/D=1-351.
DR   PDB; 6O81; EM; 3.21 A; C/D=2-351.
DR   PDB; 6O85; EM; 3.03 A; C/D=2-351.
DR   PDB; 6O9Z; EM; 3.03 A; C/D=2-351.
DR   PDB; 7D43; EM; 4.30 A; C/D=1-351.
DR   PDB; 7D44; EM; 4.00 A; C/D=1-351.
DR   PDB; 7D45; EM; 3.80 A; C/D=1-351.
DR   PDB; 7D46; EM; 4.00 A; C/D=1-351.
DR   PDB; 7F64; EM; 2.42 A; C/D=1-351.
DR   PDB; 7F66; EM; 2.76 A; C/D=1-351.
DR   PDB; 7F67; EM; 3.59 A; C/D=1-351.
DR   PDB; 7KMF; EM; 2.91 A; C/D=1-351.
DR   PDB; 7L70; EM; 2.80 A; C/D=2-351.
DR   PDB; 7L7G; EM; 3.00 A; C/D=2-351.
DR   PDB; 7RLO; EM; 2.60 A; C/D=1-351.
DR   PDB; 7TRJ; EM; 2.80 A; C/D=1-351.
DR   PDB; 7VLK; EM; 2.27 A; C/D=1-351.
DR   PDB; 8TQO; EM; 3.10 A; D=2-351.
DR   PDB; 8TQZ; EM; 2.90 A; C/D=2-351.
DR   PDBsum; 6CAJ; -.
DR   PDBsum; 6EZO; -.
DR   PDBsum; 6K71; -.
DR   PDBsum; 6K72; -.
DR   PDBsum; 6O81; -.
DR   PDBsum; 6O85; -.
DR   PDBsum; 6O9Z; -.
DR   PDBsum; 7D43; -.
DR   PDBsum; 7D44; -.
DR   PDBsum; 7D45; -.
DR   PDBsum; 7D46; -.
DR   PDBsum; 7F64; -.
DR   PDBsum; 7F66; -.
DR   PDBsum; 7F67; -.
DR   PDBsum; 7KMF; -.
DR   PDBsum; 7L70; -.
DR   PDBsum; 7L7G; -.
DR   PDBsum; 7RLO; -.
DR   PDBsum; 7TRJ; -.
DR   PDBsum; 7VLK; -.
DR   PDBsum; 8TQO; -.
DR   PDBsum; 8TQZ; -.
DR   AlphaFoldDB; P49770; -.
DR   EMDB; EMD-0649; -.
DR   EMDB; EMD-0651; -.
DR   EMDB; EMD-0664; -.
DR   EMDB; EMD-22924; -.
DR   EMDB; EMD-23209; -.
DR   EMDB; EMD-24535; -.
DR   EMDB; EMD-26098; -.
DR   EMDB; EMD-30568; -.
DR   EMDB; EMD-30569; -.
DR   EMDB; EMD-30570; -.
DR   EMDB; EMD-30571; -.
DR   EMDB; EMD-31472; -.
DR   EMDB; EMD-31474; -.
DR   EMDB; EMD-31475; -.
DR   EMDB; EMD-32023; -.
DR   EMDB; EMD-4162; -.
DR   EMDB; EMD-7442; -.
DR   EMDB; EMD-9840; -.
DR   EMDB; EMD-9841; -.
DR   EMDB; EMD-9842; -.
DR   SMR; P49770; -.
DR   BioGRID; 114409; 135.
DR   CORUM; P49770; -.
DR   IntAct; P49770; 45.
DR   MINT; P49770; -.
DR   STRING; 9606.ENSP00000266126; -.
DR   iPTMnet; P49770; -.
DR   PhosphoSitePlus; P49770; -.
DR   SwissPalm; P49770; -.
DR   BioMuta; EIF2B2; -.
DR   DMDM; 6226858; -.
DR   EPD; P49770; -.
DR   jPOST; P49770; -.
DR   MassIVE; P49770; -.
DR   PaxDb; 9606-ENSP00000266126; -.
DR   PeptideAtlas; P49770; -.
DR   ProteomicsDB; 56113; -.
DR   Pumba; P49770; -.
DR   Antibodypedia; 57; 213 antibodies from 30 providers.
DR   DNASU; 8892; -.
DR   Ensembl; ENST00000266126.10; ENSP00000266126.5; ENSG00000119718.11.
DR   GeneID; 8892; -.
DR   KEGG; hsa:8892; -.
DR   MANE-Select; ENST00000266126.10; ENSP00000266126.5; NM_014239.4; NP_055054.1.
DR   AGR; HGNC:3258; -.
DR   CTD; 8892; -.
DR   DisGeNET; 8892; -.
DR   GeneCards; EIF2B2; -.
DR   GeneReviews; EIF2B2; -.
DR   HGNC; HGNC:3258; EIF2B2.
DR   HPA; ENSG00000119718; Low tissue specificity.
DR   MalaCards; EIF2B2; -.
DR   MIM; 606454; gene.
DR   MIM; 620312; phenotype.
DR   neXtProt; NX_P49770; -.
DR   OpenTargets; ENSG00000119718; -.
DR   Orphanet; 157713; Congenital or early infantile CACH syndrome.
DR   Orphanet; 99854; Cree leukoencephalopathy.
DR   Orphanet; 157719; Juvenile or adult CACH syndrome.
DR   Orphanet; 157716; Late infantile CACH syndrome.
DR   Orphanet; 99853; Ovarioleukodystrophy.
DR   PharmGKB; PA27689; -.
DR   VEuPathDB; HostDB:ENSG00000119718; -.
DR   eggNOG; KOG1465; Eukaryota.
DR   GeneTree; ENSGT00550000074908; -.
DR   HOGENOM; CLU_016218_4_3_1; -.
DR   InParanoid; P49770; -.
DR   OMA; SHSCAVA; -.
DR   OrthoDB; 169494at2759; -.
DR   PhylomeDB; P49770; -.
DR   TreeFam; TF101506; -.
DR   PathwayCommons; P49770; -.
DR   Reactome; R-HSA-72731; Recycling of eIF2:GDP.
DR   SignaLink; P49770; -.
DR   SIGNOR; P49770; -.
DR   BioGRID-ORCS; 8892; 844 hits in 1176 CRISPR screens.
DR   ChiTaRS; EIF2B2; human.
DR   GeneWiki; EIF2B2; -.
DR   GenomeRNAi; 8892; -.
DR   Pharos; P49770; Tbio.
DR   PRO; PR:P49770; -.
DR   Proteomes; UP000005640; Chromosome 14.
DR   RNAct; P49770; Protein.
DR   Bgee; ENSG00000119718; Expressed in left lobe of thyroid gland and 209 other cell types or tissues.
DR   ExpressionAtlas; P49770; baseline and differential.
DR   Genevisible; P49770; HS.
DR   GO; GO:0005737; C:cytoplasm; IDA:UniProtKB.
DR   GO; GO:0005829; C:cytosol; TAS:Reactome.
DR   GO; GO:0005851; C:eukaryotic translation initiation factor 2B complex; IDA:UniProtKB.
DR   GO; GO:0005524; F:ATP binding; IDA:UniProtKB.
DR   GO; GO:0005525; F:GTP binding; IDA:UniProtKB.
DR   GO; GO:0005085; F:guanyl-nucleotide exchange factor activity; IDA:UniProtKB.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-KW.
DR   GO; GO:0007417; P:central nervous system development; IMP:UniProtKB.
DR   GO; GO:0002183; P:cytoplasmic translational initiation; IDA:UniProtKB.
DR   GO; GO:0042552; P:myelination; IMP:UniProtKB.
DR   GO; GO:0014003; P:oligodendrocyte development; IMP:UniProtKB.
DR   GO; GO:0001541; P:ovarian follicle development; IMP:UniProtKB.
DR   GO; GO:0006446; P:regulation of translational initiation; TAS:UniProtKB.
DR   GO; GO:0009749; P:response to glucose; ISS:UniProtKB.
DR   GO; GO:0009408; P:response to heat; ISS:UniProtKB.
DR   GO; GO:0043434; P:response to peptide hormone; ISS:UniProtKB.
DR   GO; GO:0050852; P:T cell receptor signaling pathway; IDA:UniProtKB.
DR   GO; GO:0006413; P:translational initiation; IDA:UniProtKB.
DR   InterPro; IPR000649; IF-2B-related.
DR   InterPro; IPR042529; IF_2B-like_C.
DR   InterPro; IPR037171; NagB/RpiA_transferase-like.
DR   PANTHER; PTHR45859; TRANSLATION INITIATION FACTOR EIF-2B SUBUNIT BETA; 1.
DR   PANTHER; PTHR45859:SF1; TRANSLATION INITIATION FACTOR EIF-2B SUBUNIT BETA; 1.
DR   Pfam; PF01008; IF-2B; 1.
DR   SUPFAM; SSF100950; NagB/RpiA/CoA transferase-like; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Cytoplasm; Disease variant; Initiation factor;
KW   Leukodystrophy; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..351
FT                   /note="Translation initiation factor eIF2B subunit beta"
FT                   /id="PRO_0000156061"
FT   VARIANT         85
FT                   /note="V -> E (in VWM2; dbSNP:rs397514648)"
FT                   /evidence="ECO:0000269|PubMed:21484434"
FT                   /id="VAR_068451"
FT   VARIANT         127
FT                   /note="A -> V (found in a patient with Rett syndrome-like
FT                   phenotype; uncertain significance; dbSNP:rs150617429)"
FT                   /evidence="ECO:0000269|PubMed:26740508"
FT                   /id="VAR_079034"
FT   VARIANT         171
FT                   /note="S -> F (in VWM2; with ovarian failure;
FT                   dbSNP:rs104894428)"
FT                   /evidence="ECO:0000269|PubMed:12707859,
FT                   ECO:0000269|PubMed:15776425"
FT                   /id="VAR_016842"
FT   VARIANT         196
FT                   /note="P -> S (in VWM2; dbSNP:rs113994011)"
FT                   /evidence="ECO:0000269|PubMed:15776425"
FT                   /id="VAR_068452"
FT   VARIANT         200
FT                   /note="G -> V (in VWM2; dbSNP:rs113994012)"
FT                   /evidence="ECO:0000269|PubMed:15776425"
FT                   /id="VAR_068453"
FT   VARIANT         213
FT                   /note="E -> G (in VWM2; with and without ovarian failure;
FT                   dbSNP:rs104894425)"
FT                   /evidence="ECO:0000269|PubMed:11704758,
FT                   ECO:0000269|PubMed:12707859, ECO:0000269|PubMed:15776425,
FT                   ECO:0000269|PubMed:22729508"
FT                   /id="VAR_012289"
FT   VARIANT         268
FT                   /note="C -> Y (in VWM2)"
FT                   /evidence="ECO:0000269|PubMed:22285377"
FT                   /id="VAR_068454"
FT   VARIANT         273
FT                   /note="K -> R (in VWM2; dbSNP:rs113994016)"
FT                   /evidence="ECO:0000269|PubMed:11704758"
FT                   /id="VAR_012321"
FT   VARIANT         316
FT                   /note="V -> D (in VWM2; dbSNP:rs104894426)"
FT                   /evidence="ECO:0000269|PubMed:11704758"
FT                   /id="VAR_012290"
FT   VARIANT         329
FT                   /note="G -> V (in VWM2; dbSNP:rs113994020)"
FT                   /evidence="ECO:0000269|PubMed:11704758"
FT                   /id="VAR_012322"
FT   CONFLICT        6
FT                   /note="A -> K (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        23
FT                   /note="K -> T (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        30
FT                   /note="S -> R (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        35
FT                   /note="A -> V (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        52
FT                   /note="S -> R (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        95..101
FT                   /note="RLHGRSD -> DSMDAAT (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        110
FT                   /note="H -> D (in Ref. 2; AAC42002)"
FT                   /evidence="ECO:0000305"
FT   HELIX           9..24
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          28..30
FT                   /evidence="ECO:0007829|PDB:7RLO"
FT   HELIX           31..48
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           54..71
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           76..97
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           109..114
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           129..145
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           147..152
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   TURN            156..158
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          164..169
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           172..181
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   TURN            182..184
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          188..193
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          195..197
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           200..209
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          213..218
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           219..221
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           222..225
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           226..228
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          230..234
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          237..239
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          241..243
FT                   /evidence="ECO:0007829|PDB:7L70"
FT   STRAND          245..248
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           251..260
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          265..268
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           271..273
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   TURN            279..281
FT                   /evidence="ECO:0007829|PDB:6CAJ"
FT   STRAND          283..286
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           291..293
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           297..299
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           301..304
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          305..308
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          313..316
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           318..320
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          323..326
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   STRAND          329..331
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           333..335
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           336..343
FT                   /evidence="ECO:0007829|PDB:7VLK"
FT   HELIX           346..348
FT                   /evidence="ECO:0007829|PDB:7VLK"
SQ   SEQUENCE   351 AA;  38990 MW;  C29FE477143F545A CRC64;
     MPGSAAKGSE LSERIESFVE TLKRGGGPRS SEEMARETLG LLRQIITDHR WSNAGELMEL
     IRREGRRMTA AQPSETTVGN MVRRVLKIIR EEYGRLHGRS DESDQQESLH KLLTSGGLNE
     DFSFHYAQLQ SNIIEAINEL LVELEGTMEN IAAQALEHIH SNEVIMTIGF SRTVEAFLKE
     AARKRKFHVI VAECAPFCQG HEMAVNLSKA GIETTVMTDA AIFAVMSRVN KVIIGTKTIL
     ANGALRAVTG THTLALAAKH HSTPLIVCAP MFKLSPQFPN EEDSFHKFVA PEEVLPFTEG
     DILEKVSVHC PVFDYVPPEL ITLFISNIGG NAPSYIYRLM SELYHPDDHV L
//
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