ID   CRCB_FRATH              Reviewed;         111 AA.
AC   Q2A5R2;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   04-APR-2006, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=Putative fluoride ion transporter CrcB {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB {ECO:0000255|HAMAP-Rule:MF_00454}; OrderedLocusNames=FTL_0141;
OS   Francisella tularensis subsp. holarctica (strain LVS).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=376619;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LVS;
RA   Chain P., Larimer F., Land M., Stilwagen S., Larsson P., Bearden S.,
RA   Chu M., Oyston P., Forsman M., Andersson S., Lindler L., Titball R.,
RA   Garcia E.;
RT   "Complete genome sequence of Francisella tularensis LVS (Live Vaccine
RT   Strain).";
RL   Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
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; AM233362; CAJ78582.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q2A5R2; -.
DR   SMR; Q2A5R2; -.
DR   KEGG; ftl:FTL_0141; -.
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..111
FT                   /note="Putative fluoride ion transporter CrcB"
FT                   /id="PRO_0000252882"
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"
SQ   SEQUENCE   111 AA;  11911 MW;  9320FB20512F4378 CRC64;
     MGLLLLLVGI GGGFGAMARF ALTQATASIS KQIPLGILLC NIIGSLIIGM MAAFLIETKL
     FNEDVSTYVR FLLVTGFLGG FTTFSSFSLD ILNLLQRGEI FIAIGYIWLV S