ID   IF2_BACAC               Reviewed;         686 AA.
AC   C3L7B4;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-JUN-2009, sequence version 1.
DT   03-AUG-2022, entry version 72.
DE   RecName: Full=Translation initiation factor IF-2 {ECO:0000255|HAMAP-Rule:MF_00100};
GN   Name=infB {ECO:0000255|HAMAP-Rule:MF_00100}; OrderedLocusNames=BAMEG_0681;
OS   Bacillus anthracis (strain CDC 684 / NRRL 3495).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=568206;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CDC 684 / NRRL 3495;
RA   Dodson R.J., Munk A.C., Brettin T., Bruce D., Detter C., Tapia R., Han C.,
RA   Sutton G., Sims D.;
RT   "Genome sequence of Bacillus anthracis str. CDC 684.";
RL   Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: One of the essential components for the initiation of protein
CC       synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis
CC       and promotes its binding to the 30S ribosomal subunits. Also involved
CC       in the hydrolysis of GTP during the formation of the 70S ribosomal
CC       complex. {ECO:0000255|HAMAP-Rule:MF_00100}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00100}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class translation factor GTPase
CC       superfamily. Classic translation factor GTPase family. IF-2 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00100}.
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DR   EMBL; CP001215; ACP15611.1; -; Genomic_DNA.
DR   RefSeq; WP_000036339.1; NC_012581.1.
DR   AlphaFoldDB; C3L7B4; -.
DR   SMR; C3L7B4; -.
DR   GeneID; 45023641; -.
DR   KEGG; bah:BAMEG_0681; -.
DR   HOGENOM; CLU_006301_5_1_9; -.
DR   OMA; NRDNRTG; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR   CDD; cd03702; IF2_mtIF2_II; 1.
DR   Gene3D; 3.40.50.10050; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00100_B; IF_2_B; 1.
DR   InterPro; IPR044145; IF2_II.
DR   InterPro; IPR006847; IF2_N.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR   InterPro; IPR000178; TF_IF2_bacterial-like.
DR   InterPro; IPR015760; TIF_IF2.
DR   InterPro; IPR023115; TIF_IF2_dom3.
DR   InterPro; IPR036925; TIF_IF2_dom3_sf.
DR   InterPro; IPR009000; Transl_B-barrel_sf.
DR   PANTHER; PTHR43381; PTHR43381; 1.
DR   Pfam; PF00009; GTP_EFTU; 1.
DR   Pfam; PF11987; IF-2; 1.
DR   Pfam; PF04760; IF2_N; 2.
DR   SUPFAM; SSF50447; SSF50447; 2.
DR   SUPFAM; SSF52156; SSF52156; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00487; IF-2; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS51722; G_TR_2; 1.
DR   PROSITE; PS01176; IF2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Initiation factor; Nucleotide-binding;
KW   Protein biosynthesis.
FT   CHAIN           1..686
FT                   /note="Translation initiation factor IF-2"
FT                   /id="PRO_1000118747"
FT   DOMAIN          188..357
FT                   /note="tr-type G"
FT   REGION          54..105
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          197..204
FT                   /note="G1"
FT                   /evidence="ECO:0000250"
FT   REGION          222..226
FT                   /note="G2"
FT                   /evidence="ECO:0000250"
FT   REGION          243..246
FT                   /note="G3"
FT                   /evidence="ECO:0000250"
FT   REGION          297..300
FT                   /note="G4"
FT                   /evidence="ECO:0000250"
FT   REGION          333..335
FT                   /note="G5"
FT                   /evidence="ECO:0000250"
FT   COMPBIAS        54..71
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         197..204
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT   BINDING         243..247
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT   BINDING         297..300
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
SQ   SEQUENCE   686 AA;  75752 MW;  520A79575F962493 CRC64;
     MSKIRVHEYA KKHNISSKDL MTKLKEMNIE VSNHMTMLDD EVVNKLDNEY QAEKPSVADE
     FEVEEKVVRS KKNSNKKKKK GKGNEDKRQE NFAGRQQTQT VETPDKITFS GSLTVGDLAK
     KLSKEPSEII KKLFMLGIMA TINQDLDKDT IELIANDYGI EVEEEVIVSE TEFETFIDEQ
     DDEENLKERP AVVTIMGHVD HGKTTLLDSI RNSKVTAGEA GGITQHIGAY QVELNDKKIT
     FLDTPGHAAF TTMRARGAQV TDITIIVVAA DDGVMPQTVE AINHAKAAGV PIIVAVNKMD
     KPAANPDRVM QELTEYELVP EAWGGDTIFV PISAIQGEGI DNLLEMILLI SEVEEYKANP
     NRYATGTVIE AQLDKGKGTI ATLLVQNGTL RVGDPIVVGT SFGRVRAMVS DIGRRVKVAG
     PSTPVEITGL NEVPQAGDRF MAFADEKKAR QIGESRAQEA LLAQRGEKSK LSLEDLFQQI
     QEGDVKEINL IVKADVQGSV EAMAASLRKI DVEGVKVKII HTGVGAITES DIILASASNA
     IVIGFNVRPD VNAKRTAELE NVDIRLHRII YKVIEEIEAA MQGMLDPEFE EKVIGQAEVR
     QTFKVTKVGT IAGCYVTDGK ITRDSGVRII RDGVVIFEGQ LDTLKRFKDD VKEVAQNYEC
     GITIERYNDL KEGDIIEAYI MEEVKR