ID   CRCB1_STRR6             Reviewed;         109 AA.
AC   Q8DPG7;
DT   24-MAY-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   25-MAY-2022, entry version 94.
DE   RecName: Full=Putative fluoride ion transporter CrcB 1 {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB1 {ECO:0000255|HAMAP-Rule:MF_00454}; OrderedLocusNames=spr1172;
OS   Streptococcus pneumoniae (strain ATCC BAA-255 / R6).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=171101;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-255 / R6;
RX   PubMed=11544234; DOI=10.1128/jb.183.19.5709-5717.2001;
RA   Hoskins J., Alborn W.E. Jr., Arnold J., Blaszczak L.C., Burgett S.,
RA   DeHoff B.S., Estrem S.T., Fritz L., Fu D.-J., Fuller W., Geringer C.,
RA   Gilmour R., Glass J.S., Khoja H., Kraft A.R., Lagace R.E., LeBlanc D.J.,
RA   Lee L.N., Lefkowitz E.J., Lu J., Matsushima P., McAhren S.M., McHenney M.,
RA   McLeaster K., Mundy C.W., Nicas T.I., Norris F.H., O'Gara M., Peery R.B.,
RA   Robertson G.T., Rockey P., Sun P.-M., Winkler M.E., Yang Y.,
RA   Young-Bellido M., Zhao G., Zook C.A., Baltz R.H., Jaskunas S.R.,
RA   Rosteck P.R. Jr., Skatrud P.L., Glass J.I.;
RT   "Genome of the bacterium Streptococcus pneumoniae strain R6.";
RL   J. Bacteriol. 183:5709-5717(2001).
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 membrane {ECO:0000255|HAMAP-Rule:MF_00454};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-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; AE007317; AAK99975.1; -; Genomic_DNA.
DR   PIR; C98018; C98018.
DR   RefSeq; NP_358765.1; NC_003098.1.
DR   RefSeq; WP_000237398.1; NC_003098.1.
DR   AlphaFoldDB; Q8DPG7; -.
DR   SMR; Q8DPG7; -.
DR   STRING; 171101.spr1172; -.
DR   EnsemblBacteria; AAK99975; AAK99975; spr1172.
DR   GeneID; 60233538; -.
DR   KEGG; spr:spr1172; -.
DR   PATRIC; fig|171101.6.peg.1270; -.
DR   eggNOG; COG0239; Bacteria.
DR   HOGENOM; CLU_114342_2_3_9; -.
DR   OMA; EVMDKDH; -.
DR   Proteomes; UP000000586; 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.
PE   3: Inferred from homology;
KW   Cell membrane; Membrane; Reference proteome; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..109
FT                   /note="Putative fluoride ion transporter CrcB 1"
FT                   /id="PRO_0000110196"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        29..49
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        55..75
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        87..107
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
SQ   SEQUENCE   109 AA;  12034 MW;  53CC723190C6ABD8 CRC64;
     MVIVYLAIAC GFGALVRYFF SRYNQASKLP LGTLIANLLG CFLIGVFYNH VESKEVYAIL
     ATGFCGGLTT FSTLNDELQR LLSDKKVFYS YLILTYLGGL VAIFLGILL