ID   CRCB_LEPIN              Reviewed;         127 AA.
AC   Q8EZS4;
DT   16-JUN-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   25-MAY-2022, entry version 101.
DE   RecName: Full=Putative fluoride ion transporter CrcB {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB {ECO:0000255|HAMAP-Rule:MF_00454}; OrderedLocusNames=LA_3777;
OS   Leptospira interrogans serogroup Icterohaemorrhagiae serovar Lai (strain
OS   56601).
OC   Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX   NCBI_TaxID=189518;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=56601;
RX   PubMed=12712204; DOI=10.1038/nature01597;
RA   Ren S.-X., Fu G., Jiang X.-G., Zeng R., Miao Y.-G., Xu H., Zhang Y.-X.,
RA   Xiong H., Lu G., Lu L.-F., Jiang H.-Q., Jia J., Tu Y.-F., Jiang J.-X.,
RA   Gu W.-Y., Zhang Y.-Q., Cai Z., Sheng H.-H., Yin H.-F., Zhang Y., Zhu G.-F.,
RA   Wan M., Huang H.-L., Qian Z., Wang S.-Y., Ma W., Yao Z.-J., Shen Y.,
RA   Qiang B.-Q., Xia Q.-C., Guo X.-K., Danchin A., Saint Girons I.,
RA   Somerville R.L., Wen Y.-M., Shi M.-H., Chen Z., Xu J.-G., Zhao G.-P.;
RT   "Unique physiological and pathogenic features of Leptospira interrogans
RT   revealed by whole-genome sequencing.";
RL   Nature 422:888-893(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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAN50975.2; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AE010300; AAN50975.2; ALT_INIT; Genomic_DNA.
DR   RefSeq; NP_713957.2; NC_004342.2.
DR   RefSeq; WP_001011704.1; NC_004342.2.
DR   AlphaFoldDB; Q8EZS4; -.
DR   SMR; Q8EZS4; -.
DR   STRING; 189518.LA_3777; -.
DR   EnsemblBacteria; AAN50975; AAN50975; LA_3777.
DR   KEGG; lil:LA_3777; -.
DR   PATRIC; fig|189518.3.peg.3748; -.
DR   HOGENOM; CLU_114342_3_2_12; -.
DR   InParanoid; Q8EZS4; -.
DR   OMA; FLMFESF; -.
DR   Proteomes; UP000001408; Chromosome I.
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..127
FT                   /note="Putative fluoride ion transporter CrcB"
FT                   /id="PRO_0000110124"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        37..57
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        68..88
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   127 AA;  14173 MW;  EE009C3F5C02C735 CRC64;
     MNFSKSLLLI AFGGTIGSIF RYLLQYWFGN VLGYSLPWGT LTANLLGSFL IGVVYAISDR
     FPLFDPQWKF LLASGFCGGF TTFSTFSYET FQMLKSGHYI LFLGYICLSV VGGIGFAFAG
     VWMIKNF