ID   CRCB2_SYNS9             Reviewed;         134 AA.
AC   Q3B0L7;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 2.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=Putative fluoride ion transporter CrcB 2 {ECO:0000255|HAMAP-Rule:MF_00454};
GN   Name=crcB2 {ECO:0000255|HAMAP-Rule:MF_00454};
GN   OrderedLocusNames=Syncc9902_0136;
OS   Synechococcus sp. (strain CC9902).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=316279;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CC9902;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Martinez M., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Synechococcus sp. CC9902.";
RL   Submitted (AUG-2005) 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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABB25111.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000097; ABB25111.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_049749468.1; NC_007513.1.
DR   AlphaFoldDB; Q3B0L7; -.
DR   SMR; Q3B0L7; -.
DR   STRING; 316279.Syncc9902_0136; -.
DR   EnsemblBacteria; ABB25111; ABB25111; Syncc9902_0136.
DR   KEGG; sye:Syncc9902_0136; -.
DR   eggNOG; COG0239; Bacteria.
DR   HOGENOM; CLU_114342_2_1_3; -.
DR   OrthoDB; 1942863at2; -.
DR   Proteomes; UP000002712; 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.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..134
FT                   /note="Putative fluoride ion transporter CrcB 2"
FT                   /id="PRO_0000252953"
FT   TRANSMEM        10..30
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        43..63
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00454"
FT   TRANSMEM        67..87
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   134 AA;  14173 MW;  7F29CD861ED9390C CRC64;
     MAEQQQQRSL SAELQELVLV ALGAVPGALL RWQVALHWAD RHLLVNVLGA ALLGLLAGLP
     AAPRRQLLVG IGFCGSLTTF SSWMVDAMQL ISAGQIAEAF GLIGLTLGLG VGAAALGFWL
     GQRLRLLKLP RSEP