ID   LEPA_XANCB              Reviewed;         601 AA.
AC   B0RX30;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 81.
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};
GN   OrderedLocusNames=xcc-b100_3033;
OS   Xanthomonas campestris pv. campestris (strain B100).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=509169;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=B100;
RX   PubMed=18304669; DOI=10.1016/j.jbiotec.2007.12.013;
RA   Vorhoelter F.-J., Schneiker S., Goesmann A., Krause L., Bekel T.,
RA   Kaiser O., Linke B., Patschkowski T., Rueckert C., Schmid J., Sidhu V.K.,
RA   Sieber V., Tauch A., Watt S.A., Weisshaar B., Becker A., Niehaus K.,
RA   Puehler A.;
RT   "The genome of Xanthomonas campestris pv. campestris B100 and its use for
RT   the reconstruction of metabolic pathways involved in xanthan
RT   biosynthesis.";
RL   J. Biotechnol. 134:33-45(2008).
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; AM920689; CAP52396.1; -; Genomic_DNA.
DR   AlphaFoldDB; B0RX30; -.
DR   SMR; B0RX30; -.
DR   KEGG; xca:xcc-b100_3033; -.
DR   HOGENOM; CLU_009995_3_3_6; -.
DR   OMA; MVQIAIQ; -.
DR   Proteomes; UP000001188; 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; 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 inner membrane; Cell membrane; GTP-binding; Hydrolase; Membrane;
KW   Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..601
FT                   /note="Elongation factor 4"
FT                   /id="PRO_1000092463"
FT   DOMAIN          7..189
FT                   /note="tr-type G"
FT   BINDING         19..24
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   601 AA;  66389 MW;  74EE61170684569C CRC64;
     MSSDSMRNIR NFSIIAHVDH GKSTLADRII QLCGGLQARE MEAQVLDSNP IERERGITIK
     AQSVSLPYTA KDGQTYFLNF IDTPGHVDFS YEVSRSLAAC EGALLVVDAA QGVEAQSVAN
     CYTAVEQGLE VVPVLNKIDL PTADIERAKA EIEAVIGIDA EDAVAVSAKT GLNIDLVLEA
     IVHRIPPPKP RDTDKLQALI IDSWFDNYLG VVSLVRVMQG EIKPGSKIQV MSTGRTHLVD
     KVGVFTPKRK ELVALGAGEV GWINASIKDV HGAPVGDTLT LAADPAPHAL PGFQEMQPRV
     FAGLFPVDAE DYPDLREALD KLRLNDAALR FEPESSEAMG FGFRCGFLGM LHMEIVQERL
     EREYNLNLIS TAPTVVYEVL KTDGTIIPMD NPSKLPPLNH VEEIREPIIR ANILTPPDYV
     GNIITLCEEK RGSQIGINYL GSQVQISYEL PMAEVVLDFF DKLKSVSRGY ASLDYHFLRF
     DAGPFVRVDT LINGDKVDAL SIIVHRSYAD RRGRELCEKM KELIPRQMFD VAIQAAVGSQ
     IISRSTVKAM RKNVLAKCYG GDVSRKKKLL EKQKEGKKRM KQVGRVEIPQ EAFLAVLQMD
     K