ID   CRCB_SALRD              Reviewed;         133 AA.
AC   Q2RZS8;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Putative fluoride ion transporter CrcB {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB {ECO:0000255|HAMAP-Rule:MF_00454}; OrderedLocusNames=SRU_2454;
OS   Salinibacter ruber (strain DSM 13855 / M31).
OC   Bacteria; Bacteroidetes; Bacteroidetes Order II. Incertae sedis;
OC   Rhodothermaceae; Salinibacter.
OX   NCBI_TaxID=309807;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 13855 / CECT 5946 / M31;
RX   PubMed=16330755; DOI=10.1073/pnas.0509073102;
RA   Mongodin E.F., Nelson K.E., Daugherty S., DeBoy R.T., Wister J., Khouri H.,
RA   Weidman J., Walsh D.A., Papke R.T., Sanchez Perez G., Sharma A.K.,
RA   Nesbo C.L., MacLeod D., Bapteste E., Doolittle W.F., Charlebois R.L.,
RA   Legault B., Rodriguez-Valera F.;
RT   "The genome of Salinibacter ruber: convergence and gene exchange among
RT   hyperhalophilic bacteria and archaea.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:18147-18152(2005).
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; CP000159; ABC45386.1; -; Genomic_DNA.
DR   RefSeq; WP_011405171.1; NC_007677.1.
DR   RefSeq; YP_446553.1; NC_007677.1.
DR   AlphaFoldDB; Q2RZS8; -.
DR   SMR; Q2RZS8; -.
DR   STRING; 309807.SRU_2454; -.
DR   EnsemblBacteria; ABC45386; ABC45386; SRU_2454.
DR   KEGG; sru:SRU_2454; -.
DR   eggNOG; COG0239; Bacteria.
DR   HOGENOM; CLU_114342_2_3_10; -.
DR   OMA; EWRLFLI; -.
DR   Proteomes; UP000008674; Chromosome.
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; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..133
FT                   /note="Putative fluoride ion transporter CrcB"
FT                   /id="PRO_0000252935"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        35..55
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        66..86
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        107..127
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
SQ   SEQUENCE   133 AA;  13829 MW;  475A880BF874800F CRC64;
     MLKLLWIALG GSLGALCRYG LSVLARWGLP PTVPWGTLAA NLVGCFLIGG LWVLAAQYSF
     SEELRVFIFT GGIGSLTTFS TYSLESLLLL REGRVWAGLA NVLVSNVLGL VLVAIGAGCA
     LFLLGGPVAA FGA