ID A0A0S7XG12_9BACT Unreviewed; 723 AA.
AC A0A0S7XG12;
DT 17-FEB-2016, integrated into UniProtKB/TrEMBL.
DT 17-FEB-2016, sequence version 1.
DT 27-MAR-2024, entry version 29.
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=AMJ46_01600 {ECO:0000313|EMBL:KPJ61408.1};
OS Latescibacteria bacterium DG_63.
OC Bacteria; Candidatus Latescibacteria.
OX NCBI_TaxID=1703781 {ECO:0000313|EMBL:KPJ61408.1, ECO:0000313|Proteomes:UP000051457};
RN [1] {ECO:0000313|EMBL:KPJ61408.1, ECO:0000313|Proteomes:UP000051457}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DG_63 {ECO:0000313|EMBL:KPJ61408.1};
RX PubMed=25922666; DOI=10.1186/s40168-015-0077-6;
RA Baker B.J., Lazar C.S., Teske A.P., Dick G.J.;
RT "Genomic resolution of linkages in carbon, nitrogen, and sulfur cycling
RT among widespread estuary sediment bacteria.";
RL Microbiome 3:14-14(2015).
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 ECO:0000256|RuleBase:RU000645}.
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:KPJ61408.1}.
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DR EMBL; LJNC01000003; KPJ61408.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0S7XG12; -.
DR PATRIC; fig|1703781.3.peg.1940; -.
DR Proteomes; UP000051457; 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; IPR004161; EFTu-like_2.
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; PF03144; GTP_EFTU_D2; 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 Coiled coil {ECO:0000256|SAM:Coils};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, 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 224..393
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT REGION 227..375
FT /note="G-domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT COILED 40..67
FT /evidence="ECO:0000256|SAM:Coils"
FT BINDING 233..240
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 279..283
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 333..336
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 723 AA; 79743 MW; 8E7F4BB65A9DAFC6 CRC64;
MGKRRVYEVA KELNISSVAL LEVVRSFGIQ VKSHMSTLDN DAVEKVKKKF EKEKQAVKEE
YARKMERRAA RLETEARGRA AKAVKKPPEK KLRARVPRKK KRIVDEKAVR ESVKRTLAGL
DVSKTRKRRR RAEEGEDTVA EKPKLIKVSE YLTVAELATR LGHRPNEVLA SCLELGLMVN
VNMRLDRDSI VAVADEFGFD VEFVSEYGSE LIEETPTSEE VQVTRAPVVT IMGHVDHGKT
SLLDYIRRSN VIAGELGGIT QHIGAYEVEL EGGRVTFLDT PGHEAFTAMR ARGAQVTDIV
VIVVAADDMV MPQTVEAIDH AKAAGVPVIV AINKMDLPGV KPELVKQELN KAGVVVEDWG
GTTVCVEISA KTGASVDKLL EMILLQAELL ELKADPARRA KGVVIEAKVE QGRGIVATIL
VQEGTLRVSD PFVSGLFYGK VRAMCNERGD RVTEAAPSTP VEVLGWTGTP KAGDSFAVTR
DDREAREIAV KRQQLHREHE YRLRRHMTLS DLYDEIKRGA NELRLIVKGD VGGSVEALCD
ALAGIPSEEV KLNIIHRGVG TVNESDVLLS AASDAVIIGF GVKAEPHALE LREREGVDVR
LYKVIYEAVE DIKKAMSGLL RPERKETVIG SAEVREVFRL SRAGVVAGSF VTSGTVRRNA
RVRLVRGEEV RFDGTIRSLK RFKDDVREVA AGFECGIGLE GYDDIEVGDV LQVYTVEEIA
RTI
//
