ID   IF2B_HALMA              Reviewed;         134 AA.
AC   Q5V323;
DT   21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   07-DEC-2004, sequence version 1.
DT   25-MAY-2022, entry version 77.
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=rrnAC1124;
OS   Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM
OS   B-1809) (Halobacterium marismortui).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Haloarculaceae; Haloarcula.
OX   NCBI_TaxID=272569;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809;
RX   PubMed=15520287; DOI=10.1101/gr.2700304;
RA   Baliga N.S., Bonneau R., Facciotti M.T., Pan M., Glusman G., Deutsch E.W.,
RA   Shannon P., Chiu Y., Weng R.S., Gan R.R., Hung P., Date S.V., Marcotte E.,
RA   Hood L., Ng W.V.;
RT   "Genome sequence of Haloarcula marismortui: a halophilic archaeon from the
RT   Dead Sea.";
RL   Genome Res. 14:2221-2234(2004).
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; AY596297; AAV46079.1; -; Genomic_DNA.
DR   RefSeq; WP_011223454.1; NZ_CP039138.1.
DR   AlphaFoldDB; Q5V323; -.
DR   SMR; Q5V323; -.
DR   STRING; 272569.rrnAC1124; -.
DR   EnsemblBacteria; AAV46079; AAV46079; rrnAC1124.
DR   GeneID; 40152126; -.
DR   KEGG; hma:rrnAC1124; -.
DR   PATRIC; fig|272569.17.peg.1845; -.
DR   eggNOG; arCOG01640; Archaea.
DR   HOGENOM; CLU_026663_3_1_2; -.
DR   OMA; NVKHHKS; -.
DR   Proteomes; UP000001169; Chromosome I.
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..134
FT                   /note="Translation initiation factor 2 subunit beta"
FT                   /id="PRO_0000137418"
FT   REGION          1..28
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        8..28
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   134 AA;  15106 MW;  C0818E13207A155D CRC64;
     MEYDDMLDRA MEETPEIDGT SERFEVPDPD IRQEGNVTVY ENFQSTCSRL GREDDHVMKF
     LQNDLGTSGH IDESGRVRLT GEFDATRIEA SIDEYVDEFV LCSECGLPDT QLEREQGALL
     LRCEACGARS ATSE