ID   QUET_LACLM              Reviewed;         169 AA.
AC   A2RM05;
DT   31-MAY-2011, integrated into UniProtKB/Swiss-Prot.
DT   06-MAR-2007, sequence version 1.
DT   03-AUG-2022, entry version 65.
DE   RecName: Full=Queuosine precursor transporter QueT;
DE   AltName: Full=Queuosine precursor ECF transporter S component QueT;
GN   Name=queT; OrderedLocusNames=llmg_1760;
OS   Lactococcus lactis subsp. cremoris (strain MG1363).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Lactococcus; Lactococcus cremoris subsp. cremoris.
OX   NCBI_TaxID=416870;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MG1363;
RX   PubMed=17307855; DOI=10.1128/jb.01768-06;
RA   Wegmann U., O'Connell-Motherway M., Zomer A., Buist G., Shearman C.,
RA   Canchaya C., Ventura M., Goesmann A., Gasson M.J., Kuipers O.P.,
RA   van Sinderen D., Kok J.;
RT   "The complete genome sequence of the lactic acid bacterial paradigm
RT   Lactococcus lactis subsp. cremoris MG1363.";
RL   J. Bacteriol. 189:3256-3270(2007).
RN   [2]
RP   SUBUNIT, SUBCELLULAR LOCATION, AND EXPRESSION IN E.COLI.
RC   STRAIN=MG1363;
RX   PubMed=21135102; DOI=10.1074/jbc.m110.199224;
RA   ter Beek J., Duurkens R.H., Erkens G.B., Slotboom D.J.;
RT   "Quaternary structure and functional unit of energy coupling factor (ECF)-
RT   type transporters.";
RL   J. Biol. Chem. 286:5471-5475(2011).
CC   -!- FUNCTION: Probably a queuosine precursor-binding protein that interacts
CC       with the energy-coupling factor (ECF) ABC-transporter complex. Unlike
CC       classic ABC transporters this ECF transporter provides the energy
CC       necessary to transport a number of different substrates. The substrates
CC       themselves are bound by transmembrane, not extracytoplasmic soluble
CC       proteins.
CC   -!- SUBUNIT: In E.coli forms a stable energy-coupling factor (ECF)
CC       transporter complex composed of 2 membrane-embedded substrate-binding
CC       protein (S component), 2 ATP-binding proteins (A and A' components) and
CC       2 transmembrane proteins (T component), probably with a stoichiometry
CC       of 2:1:1:2. May be able to interact with more than 1 S component at a
CC       time. {ECO:0000269|PubMed:21135102}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305|PubMed:21135102};
CC       Multi-pass membrane protein {ECO:0000305|PubMed:21135102}.
CC   -!- SIMILARITY: Belongs to the vitamin uptake transporter (VUT/ECF) (TC
CC       2.A.88) family. {ECO:0000305}.
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DR   EMBL; AM406671; CAL98332.1; -; Genomic_DNA.
DR   RefSeq; WP_011835547.1; NZ_WJVF01000003.1.
DR   AlphaFoldDB; A2RM05; -.
DR   STRING; 416870.llmg_1760; -.
DR   TCDB; 2.A.88.9.1; the vitamin uptake transporter (vut) family.
DR   EnsemblBacteria; CAL98332; CAL98332; llmg_1760.
DR   KEGG; llm:llmg_1760; -.
DR   eggNOG; COG4708; Bacteria.
DR   HOGENOM; CLU_104115_1_1_9; -.
DR   OMA; MITVAIE; -.
DR   PhylomeDB; A2RM05; -.
DR   BioCyc; LLAC416870:LLMG_RS08845-MON; -.
DR   Proteomes; UP000000364; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IDA:UniProtKB.
DR   InterPro; IPR010387; QueT.
DR   PANTHER; PTHR40044; PTHR40044; 1.
DR   Pfam; PF06177; QueT; 1.
DR   PIRSF; PIRSF031501; QueT; 1.
PE   1: Evidence at protein level;
KW   Cell membrane; Membrane; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..169
FT                   /note="Queuosine precursor transporter QueT"
FT                   /id="PRO_0000409014"
FT   TRANSMEM        9..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        44..64
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        73..93
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        110..130
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        137..157
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   169 AA;  19068 MW;  9BF993BE4902B5C4 CRC64;
     MKKSKTYDIV TIAIVAALYV ILTMTPGLSA ISYGPIQFRV SEMLNFTAFF NKKYIIAVTI
     GCMISNFLSF TWVDVIVGGL STLVFLSLGV LLFDRFKEDY FWNGQLNKAF FFFAIFFSIS
     MFTIALELKF VAETPFLLTW GTLALGEFAS LFIGAFIMDK LGKRVDLSR