ID A0A0W1R753_9EURY Unreviewed; 600 AA.
AC A0A0W1R753;
DT 16-MAR-2016, integrated into UniProtKB/TrEMBL.
DT 16-MAR-2016, sequence version 1.
DT 24-JAN-2024, entry version 38.
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 ORFNames=AUR64_14085 {ECO:0000313|EMBL:KTG08935.1};
OS Haloprofundus marisrubri.
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Haloferacaceae; Haloprofundus.
OX NCBI_TaxID=1514971 {ECO:0000313|EMBL:KTG08935.1, ECO:0000313|Proteomes:UP000054387};
RN [1] {ECO:0000313|EMBL:KTG08935.1, ECO:0000313|Proteomes:UP000054387}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SB9 {ECO:0000313|EMBL:KTG08935.1,
RC ECO:0000313|Proteomes:UP000054387};
RA Zhang G., Stingl U., Rashid M.;
RT "Haloprofundus marisrubri gen. nov., sp. nov., an extremely halophilic
RT archaeon isolated from the Discovery deep brine-seawater interface in the
RT Red Sea.";
RL Submitted (DEC-2015) to the EMBL/GenBank/DDBJ databases.
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}.
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:KTG08935.1}.
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DR EMBL; LOPU01000029; KTG08935.1; -; Genomic_DNA.
DR RefSeq; WP_058582088.1; NZ_LOPU01000029.1.
DR AlphaFoldDB; A0A0W1R753; -.
DR STRING; 1514971.AUR64_14085; -.
DR OrthoDB; 30957at2157; -.
DR Proteomes; UP000054387; Unassembled WGS sequence.
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}.
FT DOMAIN 13..228
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT REGION 142..162
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 142..156
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 22..29
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 84..88
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 138..141
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 600 AA; 65258 MW; EA788A4CCAE952A6 CRC64;
MSDTDQPPQS ETLRTPIVAV LGHVDHGKTS LLDKVRGSAV SEGEAGAITQ HIGATAVPLE
TVSSMAGSLV DPDDFDLPGL LFIDTPGHHS FSTLRSRGGA LADIAILVVD VNDGFQPQTV
EALDILKRTG TPFVVAANKV DTTPGWNPQD GSPIKPSYDG QSDRARQMLD TNLYEIIGQL
SDEGLSADLY WRVQNFQKNI GVIPVSALTG EGIPDLLAVL MGLSQRYMKA EMAVDIAGPG
AGTVLEVKEE RGFGATLDVV LYDGTVREGD TIVVGGTNGP IITEIRALLQ PQPLAEIRTE
KRFERVDEVK AAAGVKIAAP DLDAAMAGAP VRVVRSRDTD EVIRDVQAEL AEIEVNTEEE
GVVVKADTLG SLEAMANALK EAEIPILRAE VGDVAPRDVA VAGTAREDEH KVILAFNVDI
LPNAEDELDH SEVKLFDDDV IYQLIEEYEE FVDERKRAQQ ETVLDKIVRP ARFRILQDHV
FRQNDPAVVG VEIMSGTLKN NMRVVKFDGD KPTRVGQLSG IQEQGEDVKQ IRAGNRVSVA
IDGPTVGRQI EEGDELWVEL PEKHAKILEQ ELSGEIPADE LEALQGYLDK HRRRDPFWGK
//
