ID   LEPA_TROW8              Reviewed;         601 AA.
AC   Q83NI1;
DT   13-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 105.
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=TW494;
OS   Tropheryma whipplei (strain TW08/27) (Whipple's bacillus).
OC   Bacteria; Actinobacteria; Micrococcales; Tropherymataceae; Tropheryma.
OX   NCBI_TaxID=218496;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TW08/27;
RX   PubMed=12606174; DOI=10.1016/s0140-6736(03)12597-4;
RA   Bentley S.D., Maiwald M., Murphy L.D., Pallen M.J., Yeats C.A., Dover L.G.,
RA   Norbertczak H.T., Besra G.S., Quail M.A., Harris D.E., von Herbay A.,
RA   Goble A., Rutter S., Squares R., Squares S., Barrell B.G., Parkhill J.,
RA   Relman D.A.;
RT   "Sequencing and analysis of the genome of the Whipple's disease bacterium
RT   Tropheryma whipplei.";
RL   Lancet 361:637-644(2003).
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 membrane {ECO:0000255|HAMAP-Rule:MF_00071};
CC       Peripheral membrane protein {ECO:0000255|HAMAP-Rule:MF_00071};
CC       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; BX251411; CAD67161.1; -; Genomic_DNA.
DR   RefSeq; WP_011096441.1; NC_004551.1.
DR   AlphaFoldDB; Q83NI1; -.
DR   SMR; Q83NI1; -.
DR   GeneID; 67388273; -.
DR   KEGG; tws:TW494; -.
DR   HOGENOM; CLU_009995_3_3_11; -.
DR   OMA; MVQIAIQ; -.
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; IEA:UniProtKB-UniRule.
DR   GO; GO:0003746; F:translation elongation factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0045727; P:positive regulation of translation; IEA:UniProtKB-UniRule.
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   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   SMART; SM00838; EFG_C; 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 membrane; GTP-binding; Hydrolase; Membrane; Nucleotide-binding;
KW   Protein biosynthesis.
FT   CHAIN           1..601
FT                   /note="Elongation factor 4"
FT                   /id="PRO_0000176367"
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"
SQ   SEQUENCE   601 AA;  66231 MW;  C225048BA6630527 CRC64;
     MTDRVLPEQI RNFGIIAHVD HGKSTLADRI LQLTGAVSDR DMREQYLDRL YIERERGITI
     KSQAVTLQWD CDATQYVLNM VDTPGHVDFT YEVSRSLAAC EAAVILVDAT QGVEAQTLAN
     LHLAIENNLL IIPVLSKVDL PSADVEGATL ELSEVLECRV EDVMHVSGKT GYGVKELLDL
     IVRKAPPPKG DVTSAPRALI FDSIYDSYRG VVTYVKMCDG TIRVGDKIRM MSTGAEHTLL
     EVGVSNPEPQ SRHSLSVGEV GYFITGVKDV RKSRVGDTIT TDTHTATVPL PGYSNPKPMV
     FSGIYPLNGN EYSALREGLD RLKLSDASIV YTPETSAALG FGFRCGFLGL LHMEIVSERL
     NREFGLATIS TAPSVAYEIT PDGEKTLVVM NPSDFPSGKI KEIKEPTVKV SILSPKEYIG
     SIMELCQARR GVMQGIEYFG SVRAELIYVM PLAEIVFDFF DSLKSRTKGY ASFDYNPEGS
     QPADLVKVDI LLQGNKVDAF SAIVHSSKAY SYGSSISKRL SELIPRQQFE VPIQAAIGSR
     VVARETIRAV RKDVVAKCYG GDITRKRKLL ERQKQGKARM KLIGRVEVPQ EVFVATLSSY
     K