ID Q607G6_METCA Unreviewed; 555 AA.
AC Q607G6;
DT 23-NOV-2004, integrated into UniProtKB/TrEMBL.
DT 23-NOV-2004, sequence version 1.
DT 27-MAR-2024, entry version 103.
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=MCA1794 {ECO:0000313|EMBL:AAU92193.1};
OS Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Methylococcales;
OC Methylococcaceae; Methylococcus.
OX NCBI_TaxID=243233 {ECO:0000313|EMBL:AAU92193.1, ECO:0000313|Proteomes:UP000006821};
RN [1] {ECO:0000313|EMBL:AAU92193.1, ECO:0000313|Proteomes:UP000006821}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33009 / NCIMB 11132 / Bath
RC {ECO:0000313|Proteomes:UP000006821};
RX PubMed=15383840; DOI=10.1371/journal.pbio.0020303;
RA Ward N.L., Larsen O., Sakwa J., Bruseth L., Khouri H.M., Durkin A.S.,
RA Dimitrov G., Jiang L., Scanlan D., Kang K.H., Lewis M.R., Nelson K.E.,
RA Methe B.A., Wu M., Heidelberg J.F., Paulsen I.T., Fouts D.E., Ravel J.,
RA Tettelin H., Ren Q., Read T.D., DeBoy R.T., Seshadri R., Salzberg S.L.,
RA Jensen H.B., Birkeland N.K., Nelson W.C., Dodson R.J., Grindhaug S.H.,
RA Holt I.E., Eidhammer I., Jonasen I., Vanaken S., Utterback T.R.,
RA Feldblyum T.V., Fraser C.M., Lillehaug J.R., Eisen J.A.;
RT "Genomic insights into methanotrophy: the complete genome sequence of
RT Methylococcus capsulatus (Bath).";
RL PLoS Biol. 2:1616-1628(2004).
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; AE017282; AAU92193.1; -; Genomic_DNA.
DR RefSeq; WP_010961047.1; NC_002977.6.
DR AlphaFoldDB; Q607G6; -.
DR STRING; 243233.MCA1794; -.
DR KEGG; mca:MCA1794; -.
DR eggNOG; COG0488; Bacteria.
DR HOGENOM; CLU_000604_36_0_6; -.
DR Proteomes; UP000006821; Chromosome.
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:UP000006821};
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..260
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; 62361 MW; 2BBFA6728F800D72 CRC64;
MAQYIYTMNR VSKIVAPKRT ILENISLSFF PGAKIGVLGL NGAGKSTLLR IMAGVDKEYD
GEARPQPGIK IGYLAQEPQL DPTKTVRGNV EDGVAETKAL LDRFNEVSNA FADPDADFDK
LLAEQAELQE KIDAAGAWEL DRKLEIAADA LRLPDWDADV TRLSGGERRR VALCRLLLSN
PDMLLLDEPT NHLDAESVAW LERFLQDYPG TVVAVTHDRY FLDNVAGWIL ELDRGRGIPW
EGNYSSWLEQ KEARLEMEEK QETARMKAMK AELEWVRSNP KGRHAKSKAR LARFEELSQN
DVQKRNETKE IYIPPGPRLG DLVVEFDGVS KGFGDRILVE NLSFRLPPGG IVGVIGPNGA
GKTTLFRMIA GLEVPDQGSI RIGPTVKLAY VEQFREHMDD GKTVWEEISD GLDMITVGNY
QTPSRAYVGR FNFRGSDQQK RIGELSGGER NRVHLAKLLR SGGNVLLLDE PTNDLDVETL
RALEDALLDF PGCAVVISHD RWFLDRIATH ILAFEGESEV VWFEGNYADY EADRRRRLGD
EVDTPHRIKY KRIEA
//
