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Database: UniProt
Entry: A6TCI3
LinkDB: A6TCI3
Original site: A6TCI3 
ID   LEPA_KLEP7              Reviewed;         599 AA.
AC   A6TCI3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   27-MAR-2024, entry version 94.
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=KPN78578_28430; ORFNames=KPN_02894;
OS   Klebsiella pneumoniae subsp. pneumoniae (strain ATCC 700721 / MGH 78578).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=272620;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700721 / MGH 78578;
RG   The Klebsiella pneumonia Genome Sequencing Project;
RA   McClelland M., Sanderson E.K., Spieth J., Clifton W.S., Latreille P.,
RA   Sabo A., Pepin K., Bhonagiri V., Porwollik S., Ali J., Wilson R.K.;
RL   Submitted (SEP-2006) 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}.
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DR   EMBL; CP000647; ABR78304.1; -; Genomic_DNA.
DR   RefSeq; WP_002914069.1; NC_009648.1.
DR   AlphaFoldDB; A6TCI3; -.
DR   SMR; A6TCI3; -.
DR   STRING; 272620.KPN_02894; -.
DR   jPOST; A6TCI3; -.
DR   PaxDb; 272620-KPN_02894; -.
DR   EnsemblBacteria; ABR78304; ABR78304; KPN_02894.
DR   KEGG; kpn:KPN_02894; -.
DR   HOGENOM; CLU_009995_3_3_6; -.
DR   Proteomes; UP000000265; 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:0097216; F:guanosine tetraphosphate binding; IEA:UniProt.
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; cd03699; EF4_II; 1.
DR   CDD; cd16260; EF4_III; 1.
DR   CDD; cd01890; LepA; 1.
DR   CDD; cd03709; lepA_C; 1.
DR   Gene3D; 3.30.70.240; -; 1.
DR   Gene3D; 3.30.70.2570; Elongation factor 4, C-terminal domain; 1.
DR   Gene3D; 3.30.70.870; Elongation Factor G (Translational Gtpase), domain 3; 1.
DR   Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR   Gene3D; 2.40.30.10; Translation factors; 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   NCBIfam; TIGR01393; lepA; 1.
DR   NCBIfam; TIGR00231; small_GTP; 1.
DR   PANTHER; PTHR43512:SF4; TRANSLATION FACTOR GUF1 HOMOLOG, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR43512; TRANSLATION FACTOR GUF1-RELATED; 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; SSF54980; EF-G C-terminal domain-like; 2.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 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..599
FT                   /note="Elongation factor 4"
FT                   /id="PRO_1000032007"
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   599 AA;  66435 MW;  46EEA4578DB59381 CRC64;
     MKNIRNFSII AHIDHGKSTL SDRIIQICGG LSDREMEAQV LDSMDLERER GITIKAQSVT
     LDYKASDGET YQLNFIDTPG HVDFSYEVSR SLAACEGALL VVDAGQGVEA QTLANCYTAM
     EMDLEVVPVL NKIDLPAADP ERVADEIEDI VGIDAHDAVR CSAKTGVGVT DVLERLVRDI
     PPPEGDPDAP LQALIIDSWF DNYLGVVSLV RIKNGTMRKG DKIKVMSTGQ VYNADRLGIF
     TPKQVDRTEL KCGEVGWLVC AIKDILGAPV GDTLTAARNP ADKALPGFKK VKPQVYAGLF
     PVSSDDYEAF RDALGKLSLN DASLFYEPES STALGFGFRC GFLGLLHMEI IQERLEREYD
     LDLITTAPTV VYEVETTSKE VIYVDSPSKL PPLNNIQELR EPIAECHMLL PQEFLGNVIT
     LCVEKRGVQT NMVYHGKQVA LTYEIPMAEV VLDFFDRLKS TSRGYASLDY NFKRFQASNM
     VRVDVLINGE RVDALALITH NDNAPYRGRE LVEKMKDLIP RQQFDIAIQA AIGNHIIARS
     TVKQLRKNVL AKCYGGDVSR KKKLLQKQKE GKKRMKQVGN VELPQEAFLA ILHVGKDGK
//
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