ID   CRCB_BACTN              Reviewed;         124 AA.
AC   Q89Z03;
DT   16-JUN-2003, integrated into UniProtKB/Swiss-Prot.
DT   16-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 100.
DE   RecName: Full=Putative fluoride ion transporter CrcB {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB {ECO:0000255|HAMAP-Rule:MF_00454}; OrderedLocusNames=BT_4574;
OS   Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 /
OS   CCUG 10774 / NCTC 10582 / VPI-5482 / E50).
OC   Bacteria; Bacteroidetes; Bacteroidia; Bacteroidales; Bacteroidaceae;
OC   Bacteroides.
OX   NCBI_TaxID=226186;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 /
RC   VPI-5482 / E50;
RX   PubMed=12663928; DOI=10.1126/science.1080029;
RA   Xu J., Bjursell M.K., Himrod J., Deng S., Carmichael L.K., Chiang H.C.,
RA   Hooper L.V., Gordon J.I.;
RT   "A genomic view of the human-Bacteroides thetaiotaomicron symbiosis.";
RL   Science 299:2074-2076(2003).
CC   -!- FUNCTION: Important for reducing fluoride concentration in the cell,
CC       thus reducing its toxicity. {ECO:0000255|HAMAP-Rule:MF_00454}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00454}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00454}.
CC   -!- SIMILARITY: Belongs to the CrcB (TC 9.B.71) family. {ECO:0000255|HAMAP-
CC       Rule:MF_00454}.
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DR   EMBL; AE015928; AAO79679.1; -; Genomic_DNA.
DR   RefSeq; NP_813485.1; NC_004663.1.
DR   RefSeq; WP_008764721.1; NZ_UYXG01000024.1.
DR   AlphaFoldDB; Q89Z03; -.
DR   SMR; Q89Z03; -.
DR   STRING; 226186.BT_4574; -.
DR   PaxDb; Q89Z03; -.
DR   PRIDE; Q89Z03; -.
DR   EnsemblBacteria; AAO79679; AAO79679; BT_4574.
DR   GeneID; 60925749; -.
DR   KEGG; bth:BT_4574; -.
DR   PATRIC; fig|226186.12.peg.4655; -.
DR   eggNOG; COG0239; Bacteria.
DR   HOGENOM; CLU_114342_3_2_10; -.
DR   InParanoid; Q89Z03; -.
DR   OMA; FLMFESF; -.
DR   Proteomes; UP000001414; Chromosome.
DR   GO; GO:0005887; C:integral component of plasma membrane; IBA:GO_Central.
DR   GO; GO:1903425; F:fluoride transmembrane transporter activity; IBA:GO_Central.
DR   GO; GO:1903424; P:fluoride transmembrane transport; IBA:GO_Central.
DR   HAMAP; MF_00454; CrcB; 1.
DR   InterPro; IPR003691; CrcB.
DR   PANTHER; PTHR28259; PTHR28259; 1.
DR   Pfam; PF02537; CRCB; 1.
DR   TIGRFAMs; TIGR00494; crcB; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..124
FT                   /note="Putative fluoride ion transporter CrcB"
FT                   /id="PRO_0000110058"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        36..56
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        69..89
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        97..117
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
SQ   SEQUENCE   124 AA;  14049 MW;  DE15F0EEA59C301E CRC64;
     MLKTLLFIGM GSFTGGVLRY LISRYVQNFL TPSFPLGTLL VNVLGCFAIG LFYGLFERGN
     LMNPNLRMFL TVGFCGGFTT FSTFMNENFQ LIKDDNFFYL SLYVGLSLFV GFIMLYLGYS
     LVKQ