ID E0SQA7_IGNAA Unreviewed; 608 AA.
AC E0SQA7;
DT 02-NOV-2010, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2010, sequence version 1.
DT 24-JAN-2024, entry version 72.
DE RecName: Full=Probable translation initiation factor IF-2 {ECO:0000256|HAMAP-Rule:MF_00100};
GN Name=infB {ECO:0000256|HAMAP-Rule:MF_00100};
GN OrderedLocusNames=Igag_0208 {ECO:0000313|EMBL:ADM27057.1};
OS Ignisphaera aggregans (strain DSM 17230 / JCM 13409 / AQ1.S1).
OC Archaea; Thermoproteota; Thermoprotei; Desulfurococcales;
OC Desulfurococcaceae; Ignisphaera.
OX NCBI_TaxID=583356 {ECO:0000313|EMBL:ADM27057.1, ECO:0000313|Proteomes:UP000001304};
RN [1] {ECO:0000313|EMBL:ADM27057.1, ECO:0000313|Proteomes:UP000001304}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17230 / JCM 13409 / AQ1.S1
RC {ECO:0000313|Proteomes:UP000001304};
RX PubMed=21304693; DOI=10.4056/sigs.1072907;
RA Goker M., Held B., Lapidus A., Nolan M., Spring S., Yasawong M., Lucas S.,
RA Glavina Del Rio T., Tice H., Cheng J.F., Goodwin L., Tapia R., Pitluck S.,
RA Liolios K., Ivanova N., Mavromatis K., Mikhailova N., Pati A., Chen A.,
RA Palaniappan K., Brambilla E., Land M., Hauser L., Chang Y.J.,
RA Jeffries C.D., Brettin T., Detter J.C., Han C., Rohde M., Sikorski J.,
RA Woyke T., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Ignisphaera aggregans type strain (AQ1.S1).";
RL Stand. Genomic Sci. 3:66-75(2010).
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:0000256|ARBA:ARBA00024852, ECO:0000256|HAMAP-
CC Rule:MF_00100, ECO:0000256|RuleBase:RU000644}.
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}.
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DR EMBL; CP002098; ADM27057.1; -; Genomic_DNA.
DR AlphaFoldDB; E0SQA7; -.
DR STRING; 583356.Igag_0208; -.
DR KEGG; iag:Igag_0208; -.
DR HOGENOM; CLU_002656_3_3_2; -.
DR OMA; FRQSKPA; -.
DR Proteomes; UP000001304; 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 CDD; cd03703; aeIF5B_II; 1.
DR CDD; cd16266; IF2_aeIF5B_IV; 1.
DR CDD; cd01887; IF2_eIF5B; 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_A; IF_2_A; 1.
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 NCBIfam; TIGR00491; aIF-2; 1.
DR NCBIfam; TIGR00231; small_GTP; 1.
DR PANTHER; PTHR43381:SF4; EUKARYOTIC TRANSLATION INITIATION FACTOR 5B; 1.
DR PANTHER; PTHR43381; TRANSLATION INITIATION FACTOR IF-2-RELATED; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR Pfam; PF14578; GTP_EFTU_D4; 1.
DR Pfam; PF11987; IF-2; 1.
DR PRINTS; PR00315; ELONGATNFCT.
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; 1.
DR PROSITE; PS51722; G_TR_2; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|HAMAP-Rule:MF_00100};
KW Initiation factor {ECO:0000256|ARBA:ARBA00022540, ECO:0000256|HAMAP-
KW Rule:MF_00100}; Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00100};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_00100}; Reference proteome {ECO:0000313|Proteomes:UP000001304}.
FT DOMAIN 13..230
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT BINDING 22..29
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 86..90
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 140..143
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 608 AA; 67593 MW; 616B0556C996622D CRC64;
MVLEMSKHVD RKLRQPIVVV LGHVDHGKTT LLDKIRGTAV VKKEAGEMTQ HVGASMVPSS
VIEKVAMPLK KIIPFKLEIP GLLFIDTPGH ELFSNLRKRG GSVADIAILV IDINEGVKPQ
TIESIDVLKA RNVPFVIAAN KIDKIQGWKP YPDEPIISSL KKQSRAVVNK LETLLYNLIA
QLSSYGVNAE YFERVRDFMK VVPIVPVSAK TGEGIPELLA ILAGITQRFL AERLRFAEGP
AKGVVLEVKE QQGYGAALDV IIYDGVLRER DNIVVAGFNG PIVTKVRAIL MPKPLTDIRI
ARTELQIVEE VAAAAGVRVI APGIEEAIAG SPFFVVPNEN EIEKYKRLVM EEVETIRFRR
DIDGVIVKAD TLGTLEAIIL ALNRKSIPIR IADVGPLTKR DVIEASIVAK NNKYYGVILL
FNVKALPDAE ELARKENIKI FSNNIIYKLI DDYINWIESE KMMELRREFE SIVPPAKIKI
LPGYIFRRSD PAIVGVSILG GIIRPGMPLM RSDGRSIGEI QQIQYMGQTL REAKTGQEVA
ISIKGNVIVG RHIKEDDILY SDIPLSHVKI LVSKFKNILD ETSLTVLKEI IKIKSLKEPE
YAAFLMQL
//