LEPA_HELPY
ID LEPA_HELPY Reviewed; 602 AA.
AC O25122;
DT 15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT 01-JAN-1998, sequence version 1.
DT 03-AUG-2022, entry version 127.
DE RecName: Full=Elongation factor 4 {ECO:0000255|HAMAP-Rule:MF_00071};
DE Short=EF-4 {ECO:0000255|HAMAP-Rule:MF_00071};
DE EC=3.6.5.n1 {ECO:0000255|HAMAP-Rule:MF_00071};
DE AltName: Full=Ribosomal back-translocase LepA {ECO:0000255|HAMAP-Rule:MF_00071};
GN Name=lepA {ECO:0000255|HAMAP-Rule:MF_00071}; OrderedLocusNames=HP_0355;
OS Helicobacter pylori (strain ATCC 700392 / 26695) (Campylobacter pylori).
OC Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC Helicobacteraceae; Helicobacter.
OX NCBI_TaxID=85962;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700392 / 26695;
RX PubMed=9252185; DOI=10.1038/41483;
RA Tomb J.-F., White O., Kerlavage A.R., Clayton R.A., Sutton G.G.,
RA Fleischmann R.D., Ketchum K.A., Klenk H.-P., Gill S.R., Dougherty B.A.,
RA Nelson K.E., Quackenbush J., Zhou L., Kirkness E.F., Peterson S.N.,
RA Loftus B.J., Richardson D.L., Dodson R.J., Khalak H.G., Glodek A.,
RA McKenney K., FitzGerald L.M., Lee N., Adams M.D., Hickey E.K., Berg D.E.,
RA Gocayne J.D., Utterback T.R., Peterson J.D., Kelley J.M., Cotton M.D.,
RA Weidman J.F., Fujii C., Bowman C., Watthey L., Wallin E., Hayes W.S.,
RA Borodovsky M., Karp P.D., Smith H.O., Fraser C.M., Venter J.C.;
RT "The complete genome sequence of the gastric pathogen Helicobacter
RT pylori.";
RL Nature 388:539-547(1997).
CC -!- FUNCTION: Required for accurate and efficient protein synthesis under
CC certain stress conditions. May act as a fidelity factor of the
CC translation reaction, by catalyzing a one-codon backward translocation
CC of tRNAs on improperly translocated ribosomes. Back-translocation
CC proceeds from a post-translocation (POST) complex to a pre-
CC translocation (PRE) complex, thus giving elongation factor G a second
CC chance to translocate the tRNAs correctly. Binds to ribosomes in a GTP-
CC dependent manner. {ECO:0000255|HAMAP-Rule:MF_00071}.
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.n1;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00071};
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_00071}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00071}; Cytoplasmic side {ECO:0000255|HAMAP-Rule:MF_00071}.
CC -!- SIMILARITY: Belongs to the TRAFAC class translation factor GTPase
CC superfamily. Classic translation factor GTPase family. LepA subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00071}.
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DR EMBL; AE000511; AAD07423.1; -; Genomic_DNA.
DR PIR; C64564; C64564.
DR RefSeq; NP_207153.1; NC_000915.1.
DR RefSeq; WP_000849893.1; NC_018939.1.
DR AlphaFoldDB; O25122; -.
DR SMR; O25122; -.
DR DIP; DIP-3049N; -.
DR IntAct; O25122; 11.
DR MINT; O25122; -.
DR STRING; 85962.C694_01800; -.
DR PaxDb; O25122; -.
DR EnsemblBacteria; AAD07423; AAD07423; HP_0355.
DR KEGG; hpy:HP_0355; -.
DR PATRIC; fig|85962.8.peg.368; -.
DR eggNOG; COG0481; Bacteria.
DR OMA; MVQIAIQ; -.
DR PhylomeDB; O25122; -.
DR Proteomes; UP000000429; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0043022; F:ribosome binding; IBA:GO_Central.
DR GO; GO:0003746; F:translation elongation factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0045727; P:positive regulation of translation; IBA:GO_Central.
DR CDD; cd03709; lepA_C; 1.
DR Gene3D; 3.30.70.2570; -; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR HAMAP; MF_00071; LepA; 1.
DR InterPro; IPR006297; EF-4.
DR InterPro; IPR035647; EFG_III/V.
DR InterPro; IPR000640; EFG_V-like.
DR InterPro; IPR004161; EFTu-like_2.
DR InterPro; IPR031157; G_TR_CS.
DR InterPro; IPR038363; LepA_C_sf.
DR InterPro; IPR013842; LepA_CTD.
DR InterPro; IPR035654; LepA_IV.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR005225; Small_GTP-bd_dom.
DR InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR InterPro; IPR009000; Transl_B-barrel_sf.
DR PANTHER; PTHR43512; PTHR43512; 1.
DR Pfam; PF00679; EFG_C; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR Pfam; PF03144; GTP_EFTU_D2; 1.
DR Pfam; PF06421; LepA_C; 1.
DR PRINTS; PR00315; ELONGATNFCT.
DR SUPFAM; SSF50447; SSF50447; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR SUPFAM; SSF54980; SSF54980; 2.
DR TIGRFAMs; TIGR01393; lepA; 1.
DR TIGRFAMs; TIGR00231; small_GTP; 1.
DR PROSITE; PS00301; G_TR_1; 1.
DR PROSITE; PS51722; G_TR_2; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; GTP-binding; Hydrolase; Membrane;
KW Nucleotide-binding; Protein biosynthesis; Reference proteome.
FT CHAIN 1..602
FT /note="Elongation factor 4"
FT /id="PRO_0000176282"
FT DOMAIN 8..189
FT /note="tr-type G"
FT BINDING 20..25
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00071"
FT BINDING 136..139
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00071"
SQ SEQUENCE 602 AA; 66893 MW; 0F5E3E521B457E89 CRC64;
MKTKAPMKNI RNFSIIAHID HGKSTLADCL ISECNAISNR EMKSQVMDTM DIEKERGITI
KAQSVRLNYT FKGEDYVLNL IDTPGHVDFS YEVSRSLCSC EGALLVVDAT QGVEAQTIAN
TYIALDNHLE ILPVINKIDL PNANVLEVKQ DIEDTIGIDC SNTNEVSAKA RLGIKDLLEK
IITTIPAPSG DFNAPLKALI YDSWFDNYLG ALALVRIMDG SINTEQEILV MGTGKKHGVL
GLYYPNPLKK IPTKSLECGE IGIVSLGLKS VTDIAVGDTL TDAKNPTSKP IEGFMPAKPF
VFAGLYPIET DRFEDLREAL LKLQLNDCAL NFEPESSVAL GFGFRVGFLG LLHMEVIKER
LEREFGLNLI ATAPTVVYEV HLTDNSIKYV QNPSELPPEN CIACIKEPFV RATIITPSEF
LGNLMQLLNN KRGIQEKMEY LNQSRVMLTY SLPSNEIVMD FYDKLKSCTK GYASFDYEPI
ENREANLVKL DVRVAGDVVD ALSIIIDKNK AYEKGRALVE TMKELIPRQL FEVAIQASVG
NKIIARETIK SVGKNVTAKC YGGDITRKRK LLEKQKEGKK RMKAIGKVEL PQEAFLAILK
ID
