ID Q9KU31_VIBCH Unreviewed; 555 AA.
AC Q9KU31;
DT 01-OCT-2000, integrated into UniProtKB/TrEMBL.
DT 01-OCT-2000, sequence version 1.
DT 27-MAR-2024, entry version 129.
DE RecName: Full=Energy-dependent translational throttle protein EttA {ECO:0000256|HAMAP-Rule:MF_00847};
DE EC=3.6.1.- {ECO:0000256|HAMAP-Rule:MF_00847};
DE AltName: Full=Translational regulatory factor EttA {ECO:0000256|HAMAP-Rule:MF_00847};
GN Name=ettA {ECO:0000256|HAMAP-Rule:MF_00847};
GN OrderedLocusNames=VC_0698 {ECO:0000313|EMBL:AAF93863.1};
OS Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=243277 {ECO:0000313|EMBL:AAF93863.1, ECO:0000313|Proteomes:UP000000584};
RN [1] {ECO:0000313|EMBL:AAF93863.1, ECO:0000313|Proteomes:UP000000584}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 39315 / El Tor Inaba N16961
RC {ECO:0000313|Proteomes:UP000000584};
RX PubMed=10952301; DOI=10.1038/35020000;
RA Heidelberg J.F., Eisen J.A., Nelson W.C., Clayton R.A., Gwinn M.L.,
RA Dodson R.J., Haft D.H., Hickey E.K., Peterson J.D., Umayam L.A., Gill S.R.,
RA Nelson K.E., Read T.D., Tettelin H., Richardson D., Ermolaeva M.D.,
RA Vamathevan J., Bass S., Qin H., Dragoi I., Sellers P., McDonald L.,
RA Utterback T., Fleishmann R.D., Nierman W.C., White O., Salzberg S.L.,
RA Smith H.O., Colwell R.R., Mekalanos J.J., Venter J.C., Fraser C.M.;
RT "DNA sequence of both chromosomes of the cholera pathogen Vibrio
RT cholerae.";
RL Nature 406:477-483(2000).
CC -!- FUNCTION: A translation factor that gates the progression of the 70S
CC ribosomal initiation complex (IC, containing tRNA(fMet) in the P-site)
CC into the translation elongation cycle by using a mechanism sensitive to
CC the ATP/ADP ratio. Binds to the 70S ribosome E-site where it modulates
CC the state of the translating ribosome during subunit translocation. ATP
CC hydrolysis probably frees it from the ribosome, which can enter the
CC elongation phase. {ECO:0000256|HAMAP-Rule:MF_00847}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00847};
CC -!- SUBUNIT: Monomer. Probably contacts ribosomal proteins L1, L5, L33 and
CC S7, the 16S and 23S rRNA and the P-site containing tRNA(fMet).
CC {ECO:0000256|HAMAP-Rule:MF_00847}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00847}.
CC Note=Associates with ribosomes and polysomes. {ECO:0000256|HAMAP-
CC Rule:MF_00847}.
CC -!- DOMAIN: The P-site tRNA interaction motif (PtIM domain) probably
CC interacts with the P-site tRNA(fMet) as well as the 23S rRNA.
CC {ECO:0000256|HAMAP-Rule:MF_00847}.
CC -!- DOMAIN: The arm domain is inserted in the first ABC transporter domain.
CC Probably contacts ribosomal protein L1. {ECO:0000256|HAMAP-
CC Rule:MF_00847}.
CC -!- SIMILARITY: Belongs to the ABC transporter superfamily. ABCF family.
CC Translational throttle EttA subfamily. {ECO:0000256|ARBA:ARBA00005868,
CC ECO:0000256|HAMAP-Rule:MF_00847}.
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DR EMBL; AE003852; AAF93863.1; -; Genomic_DNA.
DR PIR; D82290; D82290.
DR RefSeq; NP_230347.1; NC_002505.1.
DR RefSeq; WP_000852865.1; NZ_LT906614.1.
DR AlphaFoldDB; Q9KU31; -.
DR STRING; 243277.VC_0698; -.
DR DNASU; 2615487; -.
DR EnsemblBacteria; AAF93863; AAF93863; VC_0698.
DR KEGG; vch:VC_0698; -.
DR PATRIC; fig|243277.26.peg.669; -.
DR eggNOG; COG0488; Bacteria.
DR HOGENOM; CLU_000604_36_0_6; -.
DR Proteomes; UP000000584; Chromosome 1.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:UniProtKB-UniRule.
DR GO; GO:0043022; F:ribosome binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0045900; P:negative regulation of translational elongation; IEA:UniProtKB-UniRule.
DR GO; GO:0006412; P:translation; IEA:UniProtKB-KW.
DR CDD; cd03221; ABCF_EF-3; 2.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 2.
DR HAMAP; MF_00847; EttA; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR032781; ABC_tran_Xtn.
DR InterPro; IPR003439; ABC_transporter-like_ATP-bd.
DR InterPro; IPR017871; ABC_transporter-like_CS.
DR InterPro; IPR022374; EttA.
DR InterPro; IPR027417; P-loop_NTPase.
DR NCBIfam; TIGR03719; ABC_ABC_ChvD; 1.
DR PANTHER; PTHR43858; ENERGY-DEPENDENT TRANSLATIONAL THROTTLE PROTEIN ETTA; 1.
DR PANTHER; PTHR43858:SF1; NON-TRANSPORTER ABC PROTEIN; 1.
DR Pfam; PF00005; ABC_tran; 2.
DR Pfam; PF12848; ABC_tran_Xtn; 1.
DR SMART; SM00382; AAA; 2.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 2.
DR PROSITE; PS00211; ABC_TRANSPORTER_1; 1.
DR PROSITE; PS50893; ABC_TRANSPORTER_2; 2.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_00847}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00847};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_00847};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00847}; Protein biosynthesis {ECO:0000256|HAMAP-Rule:MF_00847};
KW Reference proteome {ECO:0000313|Proteomes:UP000000584};
KW Repeat {ECO:0000256|HAMAP-Rule:MF_00847};
KW RNA-binding {ECO:0000256|HAMAP-Rule:MF_00847};
KW rRNA-binding {ECO:0000256|ARBA:ARBA00022730, ECO:0000256|HAMAP-
KW Rule:MF_00847};
KW Translation regulation {ECO:0000256|ARBA:ARBA00022845, ECO:0000256|HAMAP-
KW Rule:MF_00847};
KW tRNA-binding {ECO:0000256|ARBA:ARBA00022555, ECO:0000256|HAMAP-
KW Rule:MF_00847}.
FT DOMAIN 6..259
FT /note="ABC transporter"
FT /evidence="ECO:0000259|PROSITE:PS50893"
FT DOMAIN 324..550
FT /note="ABC transporter"
FT /evidence="ECO:0000259|PROSITE:PS50893"
FT REGION 95..139
FT /note="Arm"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00847"
FT REGION 242..322
FT /note="PtIM"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00847"
FT BINDING 39..46
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00847"
FT BINDING 356..363
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00847"
SQ SEQUENCE 555 AA; 62486 MW; 675AFACD5FF515C1 CRC64;
MAEYVYTMSR VSKIVPPKRQ ILKDISLSFF PGAKIGVLGL NGAGKSTLLR IMAGIDKDID
GEARPQPGLK VGYLPQEPKL DESKTVREVV EEAVADVAYA LKRLDEVYAA YAEPDADFDA
LAKEQGELEA LIQAKNGHNL DNALERAADA LRLPEWDAQV KYLSGGERRR VAICRLLLEN
PDMLLLDEPT NHLDAESVAW LERFLVDYAG TVVAITHDRY FLDNAAGWIL ELDRGEGIPW
QGNYTSWLEQ KDARLKQEAS QEKARQKTIE KELEWVRQNP KGRQAKSKAR MARFEELQNT
EHQKRNETNE LFIPPGERLG DKVIEVKNLT KSFDGRVLID DLSFSMPKGA IVGIIGPNGA
GKSTLFKMLS GVEKPDSGTI ELGDTVKLAS VDQFRDSMND KHTVFQEISE GADIIRINNF
EIPARAYCSR FNFKGVDQQK VIGELSGGER NRVHLAKLLK AGGNVLLLDE PTNDLDVETL
RALEEALLEF PGCAMVISHD RWFLDRIATH ILDYRDEGKV NFYEGNYTEY MEWLKQTLGA
QAAEPHRIKY KRITK
//
