IF2G_HALMA
ID IF2G_HALMA Reviewed; 409 AA.
AC Q5UYS2;
DT 21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT 07-DEC-2004, sequence version 1.
DT 03-AUG-2022, entry version 92.
DE RecName: Full=Translation initiation factor 2 subunit gamma {ECO:0000255|HAMAP-Rule:MF_00119};
DE EC=3.6.5.3 {ECO:0000255|HAMAP-Rule:MF_00119};
DE AltName: Full=aIF2-gamma {ECO:0000255|HAMAP-Rule:MF_00119};
DE AltName: Full=eIF-2-gamma {ECO:0000255|HAMAP-Rule:MF_00119};
GN Name=eif2g {ECO:0000255|HAMAP-Rule:MF_00119}; OrderedLocusNames=rrnAC2827;
OS Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM
OS B-1809) (Halobacterium marismortui).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC Haloarculaceae; Haloarcula.
OX NCBI_TaxID=272569;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809;
RX PubMed=15520287; DOI=10.1101/gr.2700304;
RA Baliga N.S., Bonneau R., Facciotti M.T., Pan M., Glusman G., Deutsch E.W.,
RA Shannon P., Chiu Y., Weng R.S., Gan R.R., Hung P., Date S.V., Marcotte E.,
RA Hood L., Ng W.V.;
RT "Genome sequence of Haloarcula marismortui: a halophilic archaeon from the
RT Dead Sea.";
RL Genome Res. 14:2221-2234(2004).
CC -!- FUNCTION: eIF-2 functions in the early steps of protein synthesis by
CC forming a ternary complex with GTP and initiator tRNA.
CC {ECO:0000255|HAMAP-Rule:MF_00119}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + H2O = GDP + H(+) + phosphate; Xref=Rhea:RHEA:19669,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:58189; EC=3.6.5.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00119};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00119};
CC -!- SUBUNIT: Heterotrimer composed of an alpha, a beta and a gamma chain.
CC {ECO:0000255|HAMAP-Rule:MF_00119}.
CC -!- SIMILARITY: Belongs to the TRAFAC class translation factor GTPase
CC superfamily. Classic translation factor GTPase family. EIF2G subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00119}.
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DR EMBL; AY596297; AAV47581.1; -; Genomic_DNA.
DR RefSeq; WP_004960453.1; NZ_CP039138.1.
DR AlphaFoldDB; Q5UYS2; -.
DR SMR; Q5UYS2; -.
DR STRING; 272569.rrnAC2827; -.
DR EnsemblBacteria; AAV47581; AAV47581; rrnAC2827.
DR GeneID; 40153678; -.
DR GeneID; 64823856; -.
DR KEGG; hma:rrnAC2827; -.
DR PATRIC; fig|272569.17.peg.3400; -.
DR eggNOG; arCOG01563; Archaea.
DR HOGENOM; CLU_027154_0_1_2; -.
DR OMA; NIGMVGH; -.
DR Proteomes; UP000001169; Chromosome I.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003924; F:GTPase activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0003746; F:translation elongation factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-KW.
DR CDD; cd01888; eIF2_gamma; 1.
DR CDD; cd15490; eIF2_gamma_III; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR HAMAP; MF_00119; eIF_2_gamma; 1.
DR InterPro; IPR015256; eIF2g_C.
DR InterPro; IPR044128; eIF2g_GTP-bd.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR005225; Small_GTP-bd_dom.
DR InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR InterPro; IPR022424; TIF2_gsu.
DR InterPro; IPR009000; Transl_B-barrel_sf.
DR InterPro; IPR009001; Transl_elong_EF1A/Init_IF2_C.
DR Pfam; PF09173; eIF2_C; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR PRINTS; PR00315; ELONGATNFCT.
DR SUPFAM; SSF50447; SSF50447; 1.
DR SUPFAM; SSF50465; SSF50465; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR TIGRFAMs; TIGR03680; eif2g_arch; 1.
DR TIGRFAMs; TIGR00231; small_GTP; 1.
DR PROSITE; PS51722; G_TR_2; 1.
PE 3: Inferred from homology;
KW GTP-binding; Hydrolase; Initiation factor; Magnesium; Metal-binding;
KW Nucleotide-binding; Protein biosynthesis; Reference proteome.
FT CHAIN 1..409
FT /note="Translation initiation factor 2 subunit gamma"
FT /id="PRO_0000137451"
FT DOMAIN 6..203
FT /note="tr-type G"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT REGION 15..22
FT /note="G1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT REGION 43..47
FT /note="G2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT REGION 90..93
FT /note="G3"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT REGION 146..149
FT /note="G4"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT REGION 181..183
FT /note="G5"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 18..23
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 18
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 22
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 43
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 45
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 146..149
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
FT BINDING 181..183
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00119"
SQ SEQUENCE 409 AA; 43501 MW; D3E3D242431326FE CRC64;
MTSNKQPEVN IGLVGHVDHG KTTLVQALSG EWTDQHSEEM KRGISIRLGY ADATFRRCPE
AEEPEAFTVD EHCDDHDVDT DHLRTVSFVD APGHETLMAT MLSGAAIMDG AVLVISATEP
VPQAQTEEHL SALDIIGIDN IVIAQNKVDL VDEERAMQNY EQIQEFVEGT VAEGAPVVPI
SAGQEANIDL LIEAVQSEIP TPERDPDEDA RMMVARSFDI NRPGTTWDDL MGGVLGGSLV
GGQLDADDEI ELRPGREVEE GGKTEWQPVT TTVRSLQSGG DFVDTVTPGG LLGVGTGLDP
AITKGDALAG QVAGPPGSLP PVHETFTMDV DLLERIVGDD GGEVDEISTG EPLMLTIGTA
TTVGSVTSAR DDECEVALKR PVCAASGSKI AINRRVGARW RLIGVGTLR
