ID   IF2P_METB6              Reviewed;         591 AA.
AC   A7IAP7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Probable translation initiation factor IF-2 {ECO:0000255|HAMAP-Rule:MF_00100};
GN   Name=infB {ECO:0000255|HAMAP-Rule:MF_00100}; OrderedLocusNames=Mboo_2294;
OS   Methanoregula boonei (strain DSM 21154 / JCM 14090 / 6A8).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanomicrobiales; Methanoregulaceae; Methanoregula.
OX   NCBI_TaxID=456442;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 21154 / JCM 14090 / 6A8;
RX   PubMed=25998264; DOI=10.1099/mic.0.000117;
RA   Braeuer S., Cadillo-Quiroz H., Kyrpides N., Woyke T., Goodwin L.,
RA   Detter C., Podell S., Yavitt J.B., Zinder S.H.;
RT   "Genome of Methanoregula boonei 6A8 reveals adaptations to oligotrophic
RT   peatland environments.";
RL   Microbiology 161:1572-1581(2015).
CC   -!- FUNCTION: Function in general translation initiation by promoting the
CC       binding of the formylmethionine-tRNA to ribosomes. Seems to function
CC       along with eIF-2. {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; CP000780; ABS56808.1; -; Genomic_DNA.
DR   RefSeq; WP_012107868.1; NC_009712.1.
DR   AlphaFoldDB; A7IAP7; -.
DR   SMR; A7IAP7; -.
DR   STRING; 456442.Mboo_2294; -.
DR   EnsemblBacteria; ABS56808; ABS56808; Mboo_2294.
DR   GeneID; 5410885; -.
DR   KEGG; mbn:Mboo_2294; -.
DR   eggNOG; arCOG01560; Archaea.
DR   HOGENOM; CLU_002656_3_3_2; -.
DR   OMA; FRQSKPA; -.
DR   OrthoDB; 17053at2157; -.
DR   Proteomes; UP000002408; Chromosome.
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   Gene3D; 3.40.50.10050; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00100_A; IF_2_A; 1.
DR   InterPro; IPR004161; EFTu-like_2.
DR   InterPro; IPR029459; EFTU-type.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR   InterPro; IPR004544; TF_aIF-2_arc.
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; PF03144; GTP_EFTU_D2; 1.
DR   Pfam; PF14578; GTP_EFTU_D4; 1.
DR   Pfam; PF11987; IF-2; 1.
DR   PRINTS; PR00315; ELONGATNFCT.
DR   SUPFAM; SSF50447; SSF50447; 1.
DR   SUPFAM; SSF52156; SSF52156; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00491; aIF-2; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS51722; G_TR_2; 1.
PE   3: Inferred from homology;
KW   GTP-binding; Initiation factor; Nucleotide-binding; Protein biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..591
FT                   /note="Probable translation initiation factor IF-2"
FT                   /id="PRO_0000335528"
FT   DOMAIN          6..220
FT                   /note="tr-type G"
FT   REGION          15..22
FT                   /note="G1"
FT                   /evidence="ECO:0000250"
FT   REGION          40..44
FT                   /note="G2"
FT                   /evidence="ECO:0000250"
FT   REGION          76..79
FT                   /note="G3"
FT                   /evidence="ECO:0000250"
FT   REGION          130..133
FT                   /note="G4"
FT                   /evidence="ECO:0000250"
FT   REGION          198..200
FT                   /note="G5"
FT                   /evidence="ECO:0000250"
FT   BINDING         15..22
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT   BINDING         76..80
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT   BINDING         130..133
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
SQ   SEQUENCE   591 AA;  65151 MW;  DCBB059FF8272DF5 CRC64;
     MSDPKIRTPI VCVMGHVDHG KTSLLDRIRG SSVVASEAGA ITQHIGATIV PIEAIRKMSG
     SMEKIPINIP GLLFIDTPGH HAFTTLRARG GALADMAILV VDISQGFQPQ TIEALQILRN
     CKTPFVIAAT KVDRIHGWRI NKDESFLSSF GKQNERVKTD IETKTYEIVG KLSDLGFSAD
     RYDRVSDFQR NLAIVPVSAH TGEGIADLLM IMIGLAQRYM GEELKLSAEG PGEGTVLEVK
     EERGLGTTLD VILYNGTLSV GDEIAMASQD DVVTTKVRSL LKPRPMKEIL IEDRFERVKS
     VVAASGIKVS APGLEKVIAG SPLFVTRGNM DELAARIRKE MQEIHVNLAE EGIVIKADTI
     GALEALCKEL ESKEIKVMRA QVGPVSRHDL IDTETIKNPT FRVLLSFNTP ILPDAADMIK
     DPLYTQVKVF SGQVIYQLID QYVAWRDEQK RIAEKAQFEH VMMPAKIRLL PDCVFRQSNP
     AVVGVRVLGG KLRADVDLVK TDGKKIGHLK TMQLRQESIK EADAGLEVAI SIEGATVGRQ
     LNVGDDLLVD LPERHVKVLE REMLKNLNIS TQEVLAEFVA IRRKAEPFWG K