ID   CRCB_FRATM              Reviewed;         130 AA.
AC   B2SE35;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=Putative fluoride ion transporter CrcB {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB {ECO:0000255|HAMAP-Rule:MF_00454}; OrderedLocusNames=FTM_1582;
OS   Francisella tularensis subsp. mediasiatica (strain FSC147).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=441952;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=FSC147;
RX   PubMed=19521508; DOI=10.1371/journal.ppat.1000472;
RA   Larsson P., Elfsmark D., Svensson K., Wikstroem P., Forsman M., Brettin T.,
RA   Keim P., Johansson A.;
RT   "Molecular evolutionary consequences of niche restriction in Francisella
RT   tularensis, a facultative intracellular pathogen.";
RL   PLoS Pathog. 5:E1000472-E1000472(2009).
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; CP000915; ACD31399.1; -; Genomic_DNA.
DR   RefSeq; WP_012429850.1; NC_010677.1.
DR   AlphaFoldDB; B2SE35; -.
DR   SMR; B2SE35; -.
DR   KEGG; ftm:FTM_1582; -.
DR   HOGENOM; CLU_114342_2_3_6; -.
DR   OMA; EVMDKDH; -.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:1903425; F:fluoride transmembrane transporter activity; IEA:UniProt.
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; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..130
FT                   /note="Putative fluoride ion transporter CrcB"
FT                   /id="PRO_1000125132"
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        71..91
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        100..120
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
SQ   SEQUENCE   130 AA;  13865 MW;  3D524C652E2C1A73 CRC64;
     MGLLLLLVGI GGGFGAMARF ALTQATASIS KQIPLGILLC NIIGSLIIGM MAAFLIETKL
     FNEDVSAYVR FLLVTGFLGG FTTFSSFSLD ILNLLQRGEI FIAIGYIMVS VLASLIAVIL
     GFYIVMGVYK