ID   LEPA_HAEDU              Reviewed;         597 AA.
AC   Q7VL73;
DT   13-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   13-APR-2004, sequence version 2.
DT   03-AUG-2022, entry version 114.
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=HD_1608;
OS   Haemophilus ducreyi (strain 35000HP / ATCC 700724).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=233412;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=35000HP / ATCC 700724;
RA   Munson R.S. Jr., Ray W.C., Mahairas G., Sabo P., Mungur R., Johnson L.,
RA   Nguyen D., Wang J., Forst C., Hood L.;
RT   "The complete genome sequence of Haemophilus ducreyi.";
RL   Submitted (JUN-2003) to the EMBL/GenBank/DDBJ databases.
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAP96386.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE017143; AAP96386.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041603716.1; NC_002940.2.
DR   AlphaFoldDB; Q7VL73; -.
DR   SMR; Q7VL73; -.
DR   STRING; 233412.HD_1608; -.
DR   EnsemblBacteria; AAP96386; AAP96386; HD_1608.
DR   KEGG; hdu:HD_1608; -.
DR   eggNOG; COG0481; Bacteria.
DR   HOGENOM; CLU_009995_3_3_6; -.
DR   Proteomes; UP000001022; 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   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..597
FT                   /note="Elongation factor 4"
FT                   /id="PRO_0000176279"
FT   DOMAIN          2..184
FT                   /note="tr-type G"
FT   BINDING         14..19
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00071"
FT   BINDING         131..134
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00071"
SQ   SEQUENCE   597 AA;  66278 MW;  76954F3240A868FC CRC64;
     MQNIRNFSII AHIDHGKSTL SDRLIQTCGG LSDREMEAQV LDSMDLERER GITIKAQSVT
     LHYKAKDGET YQLNFIDTPG HVDFSYEVSR SLAACEGALL VVDAGQGVEA QTLANCYTAI
     EMDLEVVPVL NKIDLPAAEP ERVAEEIEDI VGIDAIDAVH CSAKTGFGIE NVLEDIVKKI
     PAPEGDPEAP LQALIIDSWF DNYLGVVSLV RVKNGSIKKG DKIKVMTTGQ SYNVDRLGIF
     TPKQVDTTEL KTGEVGWVVC AIKDILGAPV GDTLTHQHHS ATEVLPGFKK VKPQVYAGLF
     PISSDDYEAF RDALGKLSLN DASLFYEPEN STALGFGFRC GFLGLLHMEI IQERLEREYD
     LDLITTAPTV VYEVLQTNGE TIYVDSPSKL PPISNIDEIR EPIAECNMLV PQEYLGNIIT
     LCVEKRGIQT NMVYHGNQIA LTYEIPMGEV VLDFFDRLKS TSRGYASLDY SFKRFQTADM
     VRVDIMINSE RVDALALIVH KDNAAYRGRE LVEKMKELIP RQQFDIAIQA AIGNHIIARS
     TVKQLRKNVL AKCYGGDVSR KKKLLQKQKE GKKRMKSLGN VEVPQEAFLA ILHVGKD