ID A0A1V4IB76_9FIRM Unreviewed; 652 AA.
AC A0A1V4IB76;
DT 07-JUN-2017, integrated into UniProtKB/TrEMBL.
DT 07-JUN-2017, sequence version 1.
DT 27-MAR-2024, entry version 25.
DE RecName: Full=Translation initiation factor IF-2 {ECO:0000256|ARBA:ARBA00020675, ECO:0000256|HAMAP-Rule:MF_00100};
GN Name=infB {ECO:0000256|HAMAP-Rule:MF_00100,
GN ECO:0000313|EMBL:OPJ57134.1};
GN ORFNames=CLOTH_04170 {ECO:0000313|EMBL:OPJ57134.1};
OS [Clostridium] thermoalcaliphilum.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Peptostreptococcaceae.
OX NCBI_TaxID=29349 {ECO:0000313|EMBL:OPJ57134.1, ECO:0000313|Proteomes:UP000190140};
RN [1] {ECO:0000313|EMBL:OPJ57134.1, ECO:0000313|Proteomes:UP000190140}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 7309 {ECO:0000313|EMBL:OPJ57134.1,
RC ECO:0000313|Proteomes:UP000190140};
RA Poehlein A., Daniel R.;
RT "Genome sequence of Clostridium thermoalcaliphilum DSM 7309.";
RL Submitted (MAR-2017) 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:0000256|ARBA:ARBA00025162, ECO:0000256|HAMAP-
CC Rule:MF_00100, ECO:0000256|RuleBase:RU000644}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|ARBA:ARBA00007733, ECO:0000256|HAMAP-Rule:MF_00100,
CC ECO:0000256|RuleBase:RU000644}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OPJ57134.1}.
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DR EMBL; MZGW01000001; OPJ57134.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1V4IB76; -.
DR STRING; 29349.CLOTH_04170; -.
DR OrthoDB; 9811804at2; -.
DR Proteomes; UP000190140; Unassembled WGS sequence.
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; cd01887; IF2_eIF5B; 1.
DR CDD; cd03702; IF2_mtIF2_II; 1.
DR CDD; cd03692; mtIF2_IVc; 1.
DR Gene3D; 1.10.10.2480; -; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR Gene3D; 2.40.30.10; Translation factors; 2.
DR Gene3D; 3.40.50.10050; Translation initiation factor IF- 2, domain 3; 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 NCBIfam; TIGR00487; IF-2; 1.
DR NCBIfam; TIGR00231; small_GTP; 1.
DR PANTHER; PTHR43381:SF5; TR-TYPE G DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR43381; TRANSLATION INITIATION FACTOR IF-2-RELATED; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR Pfam; PF11987; IF-2; 1.
DR Pfam; PF04760; IF2_N; 2.
DR SUPFAM; SSF52156; Initiation factor IF2/eIF5b, domain 3; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR SUPFAM; SSF50447; Translation proteins; 2.
DR PROSITE; PS51722; G_TR_2; 1.
DR PROSITE; PS01176; IF2; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00100};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|HAMAP-
KW Rule:MF_00100};
KW Initiation factor {ECO:0000256|ARBA:ARBA00022540, ECO:0000256|HAMAP-
KW Rule:MF_00100};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00100};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_00100}; Reference proteome {ECO:0000313|Proteomes:UP000190140}.
FT DOMAIN 153..322
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT REGION 156..304
FT /note="G-domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 162..169
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 208..212
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 262..265
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 652 AA; 71295 MW; 6C820229F476F562 CRC64;
MSKTRVYKLA QKLGISSKEL IEQMETLGIN VNNHMSTLED DEAKLVFELL GSADEKDNSI
NREEEENCMP KIMISEKISV QDLSKLINKT SAEVITKLIQ IGVMATINQE IDFDVAELIA
LEFGYEVEKE VSNDDNEDSL LEVEVDDPND LQPRPPIVTV MGHVDHGKTS LLDAIRQTNV
TAKEAGGITQ HIGASEVHIN GKKIVFLDTP GHEAFTSMRA RGAQVTDISI IVVAADDGIM
PQTIEAINHS KAANVPIIVA INKIDKPNIN VDRVKQELAD QGLLVEDWGG DVISVPVSAL
KGQNIDTLLE MVLLVAEMEE LKANPNRKAV GTVIEAQLDK GRGPVATVLV QNGTLKVGDS
IVAGIGHGKV RAMINHLGKR IKEATPSTPV EILGLSDVPQ SGDQFVVVEN DKLARSIADK
RKEKLREEQM KATQKVSLDE LFKQMEKGEL KELNIVVKGD VQGSVQAVKQ SLEKLTNDEV
AVKVIHAGVG AITESDIMLA SASNAIIIGF NVRPVTSAQS LAEKEKVDVR TYRIIYKAIE
DIQAAMKGML DPEYIEEELG KAEIRAVFKI SGAGTIAGCY VTQGKIVRNA KVRLVRDGIV
IHDGNLSSLK RFKDDAKEVA YGYECGMSIE NFNDLKEGDI IEAYTMKEIE RK
//
