ID   IF2B_SULTO              Reviewed;         139 AA.
AC   Q974Z6; F9VN19;
DT   10-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   10-MAY-2002, sequence version 2.
DT   25-MAY-2022, entry version 94.
DE   RecName: Full=Translation initiation factor 2 subunit beta {ECO:0000255|HAMAP-Rule:MF_00232};
DE   AltName: Full=aIF2-beta {ECO:0000255|HAMAP-Rule:MF_00232};
DE   AltName: Full=eIF-2-beta {ECO:0000255|HAMAP-Rule:MF_00232};
GN   Name=eif2b {ECO:0000255|HAMAP-Rule:MF_00232}; OrderedLocusNames=STK_05160;
OS   Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)
OS   (Sulfolobus tokodaii).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfurisphaera.
OX   NCBI_TaxID=273063;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 16993 / JCM 10545 / NBRC 100140 / 7;
RX   PubMed=11572479; DOI=10.1093/dnares/8.4.123;
RA   Kawarabayasi Y., Hino Y., Horikawa H., Jin-no K., Takahashi M., Sekine M.,
RA   Baba S., Ankai A., Kosugi H., Hosoyama A., Fukui S., Nagai Y.,
RA   Nishijima K., Otsuka R., Nakazawa H., Takamiya M., Kato Y., Yoshizawa T.,
RA   Tanaka T., Kudoh Y., Yamazaki J., Kushida N., Oguchi A., Aoki K.,
RA   Masuda S., Yanagii M., Nishimura M., Yamagishi A., Oshima T., Kikuchi H.;
RT   "Complete genome sequence of an aerobic thermoacidophilic Crenarchaeon,
RT   Sulfolobus tokodaii strain7.";
RL   DNA Res. 8:123-140(2001).
CC   -!- FUNCTION: eIF-2 functions in the early steps of protein synthesis by
CC       forming a ternary complex with GTP and initiator tRNA.
CC       {ECO:0000255|HAMAP-Rule:MF_00232}.
CC   -!- SUBUNIT: Heterotrimer composed of an alpha, a beta and a gamma chain.
CC       {ECO:0000255|HAMAP-Rule:MF_00232}.
CC   -!- SIMILARITY: Belongs to the eIF-2-beta/eIF-5 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00232}.
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DR   EMBL; BA000023; BAK54316.1; -; Genomic_DNA.
DR   RefSeq; WP_052846888.1; NC_003106.2.
DR   AlphaFoldDB; Q974Z6; -.
DR   SMR; Q974Z6; -.
DR   STRING; 273063.STK_05160; -.
DR   EnsemblBacteria; BAK54316; BAK54316; STK_05160.
DR   GeneID; 1458461; -.
DR   KEGG; sto:STK_05160; -.
DR   PATRIC; fig|273063.9.peg.594; -.
DR   eggNOG; arCOG01640; Archaea.
DR   OMA; FIRYYVV; -.
DR   OrthoDB; 96453at2157; -.
DR   Proteomes; UP000001015; 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.
PE   3: Inferred from homology;
KW   Initiation factor; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..139
FT                   /note="Translation initiation factor 2 subunit beta"
FT                   /id="PRO_0000137435"
SQ   SEQUENCE   139 AA;  15736 MW;  C37A3DA7AED244EB CRC64;
     MSTEEEYIKL LDRLYSKLPE RVQKVSGQSL PNLIILSIGN NTIIKNFSEY CDRIRREDKL
     CAKFILKELA APGNVDENGQ LVIQGKFSSA SINKIMERFI KTYVQCSTCK SLDTVLIKEK
     KAWYISCLAC GAKTPVKPL