ID   IF2B_NANEQ              Reviewed;         139 AA.
AC   Q74M98;
DT   21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   25-MAY-2022, entry version 74.
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=NEQ323;
OS   Nanoarchaeum equitans (strain Kin4-M).
OC   Archaea; Nanoarchaeota; Candidatus Nanoarchaeia; Nanoarchaeales;
OC   Nanoarchaeaceae; Nanoarchaeum.
OX   NCBI_TaxID=228908;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Kin4-M;
RX   PubMed=14566062; DOI=10.1073/pnas.1735403100;
RA   Waters E., Hohn M.J., Ahel I., Graham D.E., Adams M.D., Barnstead M.,
RA   Beeson K.Y., Bibbs L., Bolanos R., Keller M., Kretz K., Lin X., Mathur E.,
RA   Ni J., Podar M., Richardson T., Sutton G.G., Simon M., Soell D.,
RA   Stetter K.O., Short J.M., Noorderwier M.;
RT   "The genome of Nanoarchaeum equitans: insights into early archaeal
RT   evolution and derived parasitism.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:12984-12988(2003).
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; AE017199; AAR39172.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q74M98; -.
DR   SMR; Q74M98; -.
DR   STRING; 228908.NEQ323; -.
DR   EnsemblBacteria; AAR39172; AAR39172; NEQ323.
DR   KEGG; neq:NEQ323; -.
DR   HOGENOM; CLU_026663_3_1_2; -.
DR   OMA; GKPDTRL; -.
DR   Proteomes; UP000000578; 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_0000137426"
SQ   SEQUENCE   139 AA;  16665 MW;  D00467EF62BA5582 CRC64;
     MEYNYFELLE RAYQKLKDVI KQEQIRWNPP IPHIEYVKNR TIITNFKQIA NYLNRDPKII
     AKFFSKELFV QTIIEGNSLI INKRVSYETI KKKLDEFINI FVICPVCKRP DTELIERGRK
     IYYIKCHACG SESPVNYEL