ID A0A0G2ZCC3_9BACT Unreviewed; 695 AA.
AC A0A0G2ZCC3;
DT 16-SEP-2015, integrated into UniProtKB/TrEMBL.
DT 16-SEP-2015, sequence version 1.
DT 27-MAR-2024, entry version 33.
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 ORFNames=IX53_04510 {ECO:0000313|EMBL:AKI97194.1};
OS Kosmotoga pacifica.
OC Bacteria; Thermotogota; Thermotogae; Kosmotogales; Kosmotogaceae;
OC Kosmotoga.
OX NCBI_TaxID=1330330 {ECO:0000313|EMBL:AKI97194.1, ECO:0000313|Proteomes:UP000035159};
RN [1] {ECO:0000313|EMBL:AKI97194.1, ECO:0000313|Proteomes:UP000035159}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SLHLJ1 {ECO:0000313|EMBL:AKI97194.1,
RC ECO:0000313|Proteomes:UP000035159};
RA Jiang L.J., Shao Z.Z., Jebbar M.;
RT "Complete Genome Sequence of Kosmotoga pacifica SLHLJ1.";
RL Submitted (APR-2015) 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|HAMAP-Rule:MF_00100,
CC 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: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00100}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP011232; AKI97194.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0G2ZCC3; -.
DR STRING; 1330330.IX53_04510; -.
DR KEGG; kpf:IX53_04510; -.
DR PATRIC; fig|1330330.3.peg.906; -.
DR OrthoDB; 9811804at2; -.
DR Proteomes; UP000035159; Chromosome.
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; 1.
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.
PE 3: Inferred from homology;
KW Coiled coil {ECO:0000256|SAM:Coils};
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}.
FT DOMAIN 186..360
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT COILED 54..99
FT /evidence="ECO:0000256|SAM:Coils"
FT BINDING 195..202
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 241..245
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 295..298
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 695 AA; 77755 MW; 3C0AFC19470BE577 CRC64;
MPKTRVYELA KRLKISTREL LDELEELGVS VKSHMSMLDD ETVNIIASLY EEEKREVRSV
KASEKKKAKK LEEEEEEIIE EEEKKKKEEE ILKEKIRKTV HLSPEELKLN ILAEKIKVPL
SKIIKDHFMR GIILRPAQGV NLEEARQIAA QYGWNIELKE EKISDPIEAL KEKFDELYKD
ESKLVQRPPV VTVMGHVDHG KTTLLDRIRK TTVAEKEVGG ITQSIGAYQA EIDGKKITFI
DTPGHEAFTE MRARGAQATD IVVLVVAADD GVMPQTIEAF NHAKTANVPI IVAINKIDKP
NANIDLTKQQ LASKLGLVPE DWGGDTIVVP ISAKMGKGID ELLEMILLVA EMSEIKCIPQ
GNARGVIIES ELDKGVGPLA TAIIKDGIIK PGDYIVAGST HGKVRALRDE KGRKVKNAGP
SDPVQIIGFE EVPDMHEILY VVDSLDQARE ISAFVKERQK KERMVKGKKH VRLEEFMRIS
GEGERKILNL IIKSDSFGAV EALKQAIAKL ETEEVHIEIV HSGIGPVNGS DVMLAAASDA
VIIGYKVKPD SQARSQAEEE GVQIKIYEII FDLIDDLKKA LEGLLEPEEV DEVVGHGEVK
QVFKIKKLGN IAGVQLQNGY VTKDGFVRVY RRNEEIFDGK IESLKHYKEE VNRVDAPKEC
GIKLLSFDDI QEGDKLEFHV KRQVKRTLEF KDGGN
//
