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LEPA_ACIBT
ID   LEPA_ACIBT              Reviewed;         605 AA.
AC   A3M7P5;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 2.
DT   03-AUG-2022, entry version 92.
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=A1S_2522;
OS   Acinetobacter baumannii (strain ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC
OS   KC755 / 5377).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX   NCBI_TaxID=400667;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377;
RX   PubMed=17344419; DOI=10.1101/gad.1510307;
RA   Smith M.G., Gianoulis T.A., Pukatzki S., Mekalanos J.J., Ornston L.N.,
RA   Gerstein M., Snyder M.;
RT   "New insights into Acinetobacter baumannii pathogenesis revealed by high-
RT   density pyrosequencing and transposon mutagenesis.";
RL   Genes Dev. 21:601-614(2007).
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; CP000521; ABO12939.2; -; Genomic_DNA.
DR   RefSeq; WP_000035781.1; NZ_CP053098.1.
DR   AlphaFoldDB; A3M7P5; -.
DR   SMR; A3M7P5; -.
DR   GeneID; 66396306; -.
DR   KEGG; acb:A1S_2522; -.
DR   HOGENOM; CLU_009995_3_3_6; -.
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..605
FT                   /note="Elongation factor 4"
FT                   /id="PRO_1000092365"
FT   DOMAIN          11..193
FT                   /note="tr-type G"
FT   BINDING         23..28
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00071"
FT   BINDING         140..143
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00071"
SQ   SEQUENCE   605 AA;  66658 MW;  E1A0EAB006FC0EE7 CRC64;
     MAQAKKSVDI KNIRNFSIIA HIDHGKSTLA DRFIQMCGGL QDREMQAQVL DSMELERERG
     ITIKAASVTL YYTHPNGQEY QLNFIDTPGH VDFSYEVSRS LAACEGALLV VDAAQGVEAQ
     SVANCYTAIE QGLEVLPILN KIDLPQAEPE RVIHEIEEII GIEATNAPTC SAKTGLGVEG
     VLETLVDVIP APTGDREAPL QALIIDSWFD NYLGVVSLVR IKDGRIRKGD KMLVKSTGQT
     HIVTSVGVFN PKHTETGVLE AGEVGFVIAG IKDIFGAPVG DTITLSTTPE VASLPGFKKV
     KPQVYAGLFP IDASDFEPFR EALQKLQIND SALFFEPESS DALGFGFRCG FLGMLHMEIV
     QERLEREYDL DLISSAPTVV YEAVTKKGDT IYIDSPSKMP DGSVVEDLRE PIAECHILVP
     QEYLGNVMTL CIERRGVQKD MKFLGNQVSI TFEIPMAEVV MDFFDKLKSC SRGFASLDYN
     FIRFESSSLV KVDVLINGEK VDALAMICHR NDARHRGIAL VEKMKDLIPR QMFDVAIQAA
     IGAQIIARST VKAMRKNVLA KCYGGDVSRK KKLLAKQKEG KKRMKQVGSV EIPQEAFLAV
     LKVER
 
 
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