ID   DCTQ_RHOCA              Reviewed;         227 AA.
AC   O07837;
DT   20-JAN-2016, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1997, sequence version 1.
DT   25-MAY-2022, entry version 48.
DE   RecName: Full=C4-dicarboxylate TRAP transporter small permease protein DctQ {ECO:0000305};
GN   Name=dctQ {ECO:0000303|PubMed:9287004};
OS   Rhodobacter capsulatus (Rhodopseudomonas capsulata).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Rhodobacter.
OX   NCBI_TaxID=1061;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, SUBUNIT, SUBCELLULAR LOCATION,
RP   DISRUPTION PHENOTYPE, AND NOMENCLATURE.
RC   STRAIN=ATCC 33303 / B10;
RX   PubMed=9287004; DOI=10.1128/jb.179.17.5482-5493.1997;
RA   Forward J.A., Behrendt M.C., Wyborn N.R., Cross R., Kelly D.J.;
RT   "TRAP transporters: a new family of periplasmic solute transport systems
RT   encoded by the dctPQM genes of Rhodobacter capsulatus and by homologs in
RT   diverse gram-negative bacteria.";
RL   J. Bacteriol. 179:5482-5493(1997).
RN   [2]
RP   SUBCELLULAR LOCATION, AND TOPOLOGY.
RX   PubMed=11150659; DOI=10.1111/j.1574-6968.2001.tb09439.x;
RA   Wyborn N.R., Alderson J., Andrews S.C., Kelly D.J.;
RT   "Topological analysis of DctQ, the small integral membrane protein of the
RT   C4-dicarboxylate TRAP transporter of Rhodobacter capsulatus.";
RL   FEMS Microbiol. Lett. 194:13-17(2001).
CC   -!- FUNCTION: Part of the tripartite ATP-independent periplasmic (TRAP)
CC       transport system DctPQM involved in C4-dicarboxylates uptake.
CC       {ECO:0000269|PubMed:9287004}.
CC   -!- SUBUNIT: The complex comprises the extracytoplasmic solute receptor
CC       protein DctP, and the two transmembrane proteins DctQ and DctM.
CC       {ECO:0000269|PubMed:9287004}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000269|PubMed:11150659,
CC       ECO:0000269|PubMed:9287004}; Multi-pass membrane protein {ECO:0000255}.
CC   -!- DISRUPTION PHENOTYPE: Deletion mutant is unable to transport succinate,
CC       and does not grow on D-malate, L-malate, succinate or fumarate as the
CC       sole carbon source under aerobic conditions in the dark.
CC       {ECO:0000269|PubMed:9287004}.
CC   -!- SIMILARITY: Belongs to the TRAP transporter small permease family.
CC       {ECO:0000305}.
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DR   EMBL; X63974; CAA45386.1; -; Genomic_DNA.
DR   RefSeq; WP_013068720.1; NZ_VIBE01000005.1.
DR   AlphaFoldDB; O07837; -.
DR   TCDB; 2.A.56.1.1; the tripartite atp-independent periplasmic transporter (trap-t) family.
DR   GeneID; 31491815; -.
DR   OMA; LEWPTWI; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   InterPro; IPR007387; TRAP_DctQ.
DR   PANTHER; PTHR35011; PTHR35011; 1.
DR   Pfam; PF04290; DctQ; 1.
PE   1: Evidence at protein level;
KW   Cell inner membrane; Cell membrane; Membrane; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..227
FT                   /note="C4-dicarboxylate TRAP transporter small permease
FT                   protein DctQ"
FT                   /id="PRO_0000435382"
FT   TOPO_DOM        1..7
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305|PubMed:11150659"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        29..67
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000305|PubMed:11150659"
FT   TRANSMEM        68..88
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        89..112
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305|PubMed:11150659"
FT   TRANSMEM        113..133
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        134..149
FT                   /note="Periplasmic"
FT                   /evidence="ECO:0000305|PubMed:11150659"
FT   TRANSMEM        150..170
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        171..227
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305|PubMed:11150659"
SQ   SEQUENCE   227 AA;  24763 MW;  0DE9D59DE5450F99 CRC64;
     MLRILDRAEE VLIAALIATA TVLIFVSVTH RFTLGFVADF VGFFRGHGMT GAAAAAKSLY
     TTLRGINLVW AQELCIILFV WMAKFGAAYG VRTGIHVGID VLINRLDAPK RRFFILLGLG
     AGALFTGIIA TLGANFVLHM YHASSTSPDL ELPMWLVYLA IPMGSSLMCF RFLQVAFGFA
     RTGELPHHDH GHVDGVDTEN EGIDAEGDVL LHSPLTPRDL VEKPKDN