ID   IF2B_ARCFU              Reviewed;         137 AA.
AC   O27958;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   25-MAY-2022, entry version 113.
DE   RecName: Full=Translation initiation factor 2 subunit beta;
DE   AltName: Full=aIF2-beta;
DE   AltName: Full=eIF-2-beta;
GN   Name=eif2b; OrderedLocusNames=AF_2326;
OS   Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC
OS   100126 / VC-16).
OC   Archaea; Euryarchaeota; Archaeoglobi; Archaeoglobales; Archaeoglobaceae;
OC   Archaeoglobus.
OX   NCBI_TaxID=224325;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16;
RX   PubMed=9389475; DOI=10.1038/37052;
RA   Klenk H.-P., Clayton R.A., Tomb J.-F., White O., Nelson K.E., Ketchum K.A.,
RA   Dodson R.J., Gwinn M.L., Hickey E.K., Peterson J.D., Richardson D.L.,
RA   Kerlavage A.R., Graham D.E., Kyrpides N.C., Fleischmann R.D.,
RA   Quackenbush J., Lee N.H., Sutton G.G., Gill S.R., Kirkness E.F.,
RA   Dougherty B.A., McKenney K., Adams M.D., Loftus B.J., Peterson S.N.,
RA   Reich C.I., McNeil L.K., Badger J.H., Glodek A., Zhou L., Overbeek R.,
RA   Gocayne J.D., Weidman J.F., McDonald L.A., Utterback T.R., Cotton M.D.,
RA   Spriggs T., Artiach P., Kaine B.P., Sykes S.M., Sadow P.W., D'Andrea K.P.,
RA   Bowman C., Fujii C., Garland S.A., Mason T.M., Olsen G.J., Fraser C.M.,
RA   Smith H.O., Woese C.R., Venter J.C.;
RT   "The complete genome sequence of the hyperthermophilic, sulphate-reducing
RT   archaeon Archaeoglobus fulgidus.";
RL   Nature 390:364-370(1997).
CC   -!- FUNCTION: eIF-2 functions in the early steps of protein synthesis by
CC       forming a ternary complex with GTP and initiator tRNA. {ECO:0000250}.
CC   -!- SUBUNIT: Heterotrimer composed of an alpha, a beta and a gamma chain.
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the eIF-2-beta/eIF-5 family. {ECO:0000305}.
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DR   EMBL; AE000782; AAB88931.1; -; Genomic_DNA.
DR   PIR; F69540; F69540.
DR   AlphaFoldDB; O27958; -.
DR   SMR; O27958; -.
DR   STRING; 224325.AF_2326; -.
DR   EnsemblBacteria; AAB88931; AAB88931; AF_2326.
DR   KEGG; afu:AF_2326; -.
DR   eggNOG; arCOG01640; Archaea.
DR   HOGENOM; CLU_026663_3_1_2; -.
DR   OMA; GKPDTRL; -.
DR   PhylomeDB; O27958; -.
DR   Proteomes; UP000002199; Chromosome.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00232; eIF_2_beta; 1.
DR   InterPro; IPR045196; IF2/IF5.
DR   InterPro; IPR004458; TIF2_bsu_arc.
DR   InterPro; IPR002735; Transl_init_fac_IF2/IF5_dom.
DR   InterPro; IPR016189; Transl_init_fac_IF2/IF5_N.
DR   InterPro; IPR016190; Transl_init_fac_IF2/IF5_Zn-bd.
DR   PANTHER; PTHR23001; PTHR23001; 1.
DR   Pfam; PF01873; eIF-5_eIF-2B; 1.
DR   SMART; SM00653; eIF2B_5; 1.
DR   SUPFAM; SSF100966; SSF100966; 1.
DR   SUPFAM; SSF75689; SSF75689; 1.
DR   TIGRFAMs; TIGR00311; aIF-2beta; 1.
PE   3: Inferred from homology;
KW   Initiation factor; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..137
FT                   /note="Translation initiation factor 2 subunit beta"
FT                   /id="PRO_0000137417"
SQ   SEQUENCE   137 AA;  16088 MW;  11B962290D144E83 CRC64;
     MMRSYEELLE RAFEKLADKD VVRRERFEIP RVSIQREGAR TILKNFSQIA KTLNRSEDHL
     YKYIVKSLGT AGFIDNGRLV LQGKFTESEL QKEVDDYVRL YVLCRECNSP DTEFIKEERV
     LMLRCLACGA KHPVRNI