IF2_LEGPA
ID IF2_LEGPA Reviewed; 868 AA.
AC Q5X1C3;
DT 21-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT 23-NOV-2004, sequence version 1.
DT 03-AUG-2022, entry version 108.
DE RecName: Full=Translation initiation factor IF-2 {ECO:0000255|HAMAP-Rule:MF_00100};
GN Name=infB {ECO:0000255|HAMAP-Rule:MF_00100}; OrderedLocusNames=lpp2820;
OS Legionella pneumophila (strain Paris).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Legionellales;
OC Legionellaceae; Legionella.
OX NCBI_TaxID=297246;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Paris;
RX PubMed=15467720; DOI=10.1038/ng1447;
RA Cazalet C., Rusniok C., Brueggemann H., Zidane N., Magnier A., Ma L.,
RA Tichit M., Jarraud S., Bouchier C., Vandenesch F., Kunst F., Etienne J.,
RA Glaser P., Buchrieser C.;
RT "Evidence in the Legionella pneumophila genome for exploitation of host
RT cell functions and high genome plasticity.";
RL Nat. Genet. 36:1165-1173(2004).
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:0000255|HAMAP-Rule:MF_00100}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|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:0000255|HAMAP-Rule:MF_00100}.
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DR EMBL; CR628336; CAH13973.1; -; Genomic_DNA.
DR RefSeq; WP_015961801.1; NC_006368.1.
DR AlphaFoldDB; Q5X1C3; -.
DR SMR; Q5X1C3; -.
DR KEGG; lpp:lpp2820; -.
DR LegioList; lpp2820; -.
DR HOGENOM; CLU_006301_6_1_6; -.
DR OMA; NRDNRTG; -.
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; cd03702; IF2_mtIF2_II; 1.
DR Gene3D; 3.40.50.10050; -; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR HAMAP; MF_00100_B; IF_2_B; 1.
DR InterPro; IPR009061; DNA-bd_dom_put_sf.
DR InterPro; IPR013575; IF2_assoc_dom_bac.
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 PANTHER; PTHR43381; PTHR43381; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR Pfam; PF11987; IF-2; 1.
DR Pfam; PF08364; IF2_assoc; 1.
DR Pfam; PF04760; IF2_N; 2.
DR SUPFAM; SSF46955; SSF46955; 1.
DR SUPFAM; SSF50447; SSF50447; 2.
DR SUPFAM; SSF52156; SSF52156; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR TIGRFAMs; TIGR00487; IF-2; 1.
DR TIGRFAMs; TIGR00231; small_GTP; 1.
DR PROSITE; PS51722; G_TR_2; 1.
DR PROSITE; PS01176; IF2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; GTP-binding; Initiation factor; Nucleotide-binding;
KW Protein biosynthesis.
FT CHAIN 1..868
FT /note="Translation initiation factor IF-2"
FT /id="PRO_0000228209"
FT DOMAIN 368..537
FT /note="tr-type G"
FT REGION 199..269
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 377..384
FT /note="G1"
FT /evidence="ECO:0000250"
FT REGION 402..406
FT /note="G2"
FT /evidence="ECO:0000250"
FT REGION 423..426
FT /note="G3"
FT /evidence="ECO:0000250"
FT REGION 477..480
FT /note="G4"
FT /evidence="ECO:0000250"
FT REGION 513..515
FT /note="G5"
FT /evidence="ECO:0000250"
FT COMPBIAS 199..228
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 234..250
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 377..384
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT BINDING 423..427
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT BINDING 477..480
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
SQ SEQUENCE 868 AA; 94699 MW; 6DB2816028DE2E73 CRC64;
MADVTVKQLA QVVGIPVERL LNQLQEAGLS FTDDQQTVNE EQKRILLNHL KGSSNRDISA
APERITLRRK SMSQVTVGHD MHSGKTVNIE VRKKKTFIKR SAIPEQAEIE EPVVPPVVEE
PVHEEITVVS EVSAETPELK ETEEHPVIEP VAELDETVKE EEKISLEENT AESQDELTHA
NTDVIENLVD VVEEAIPASK KEEVKPEKVS KKKHLEQTDS DISEFKKGKK KPKYHTFEHD
EEEQELHRRG GRSKFKKKKG TEKSDKYREA EETLTHGFAL PTAPIVREVL IPETITVAEL
AKRMSVKAAE VIKVMMSLGA MATINQVIDQ ETSVIVVEEM GHKPVIIKED AVETGLGEAI
SKGTKTEGRA PVVTIMGHVD HGKTSLLDYI RRTKVAAGEA GGITQHIGAY HVSTPKGNIT
FLDTPGHAAF TAMRARGAQA TDIVILIVAA DDGVKPQTIE AIQHAKAAKV PIIVAINKMD
KPDADPERVM NELSVQEVIP EAWGGDTMFV NISAKSGMGI DDLLDAILLQ SEVLELKAVT
DGAAKGVVIE SRLDKGRGPV ATVLVQSGTL HKGDILLAGF QYGRVRALVS DNGDLVDSAG
PSIPVEVLGL SAIPHAGDEA VVVPDEKKAR EVALFRQGRF RDVKLARRQK TSIEGIMENM
TATESKVLNI VLKADVQGSL EAISDALTKL STDEVKVEVI SSGVGGITES DVHLAIASNA
ILIGFNVRAD GTAKRLAEQE SVSIHYYSVI YDIVDQIKGA LTGMLAPQFK EEIVGIAEVR
DVFKSPKIGA IAGCMVIEGV VKRNNPIRVL RSNVVIYEGT LESLRRFKDD VLEVRQGFEC
GIGVKNYNDV KPGDLIEVFE TVEIKRDL
