ID Q0W0T2_METAR Unreviewed; 117 AA.
AC Q0W0T2;
DT 05-SEP-2006, integrated into UniProtKB/TrEMBL.
DT 05-SEP-2006, sequence version 1.
DT 27-MAR-2024, entry version 86.
DE RecName: Full=Fluoride-specific ion channel FluC {ECO:0000256|HAMAP-Rule:MF_00454};
GN Name=crcB-2 {ECO:0000313|EMBL:CAJ38011.1};
GN Synonyms=crcB {ECO:0000256|HAMAP-Rule:MF_00454}, fluC
GN {ECO:0000256|HAMAP-Rule:MF_00454};
GN ORFNames=RRC276 {ECO:0000313|EMBL:CAJ38011.1};
OS Methanocella arvoryzae (strain DSM 22066 / NBRC 105507 / MRE50).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanocellales; Methanocellaceae; Methanocella.
OX NCBI_TaxID=351160 {ECO:0000313|EMBL:CAJ38011.1, ECO:0000313|Proteomes:UP000000663};
RN [1] {ECO:0000313|EMBL:CAJ38011.1, ECO:0000313|Proteomes:UP000000663}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 22066 / NBRC 105507 / MRE50
RC {ECO:0000313|Proteomes:UP000000663};
RX PubMed=16857943; DOI=10.1126/science.1127062;
RA Erkel C., Kube M., Reinhardt R., Liesack W.;
RT "Genome of rice cluster I archaea -- the key methane producers in the rice
RT rhizosphere.";
RL Science 313:370-372(2006).
CC -!- FUNCTION: Fluoride-specific ion channel. Important for reducing
CC fluoride concentration in the cell, thus reducing its toxicity.
CC {ECO:0000256|HAMAP-Rule:MF_00454}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=fluoride(in) = fluoride(out); Xref=Rhea:RHEA:76159,
CC ChEBI:CHEBI:17051; Evidence={ECO:0000256|ARBA:ARBA00035585};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:76160;
CC Evidence={ECO:0000256|ARBA:ARBA00035585};
CC -!- ACTIVITY REGULATION: Na(+) is not transported, but it plays an
CC essential structural role and its presence is essential for fluoride
CC channel function. {ECO:0000256|HAMAP-Rule:MF_00454}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_00454};
CC Multi-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_00454}. Membrane
CC {ECO:0000256|ARBA:ARBA00004141}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004141}.
CC -!- SIMILARITY: Belongs to the fluoride channel Fluc/FEX (TC 1.A.43)
CC family. {ECO:0000256|ARBA:ARBA00035120, ECO:0000256|HAMAP-
CC Rule:MF_00454}.
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DR EMBL; AM114193; CAJ38011.1; -; Genomic_DNA.
DR RefSeq; WP_012034584.1; NC_009464.1.
DR AlphaFoldDB; Q0W0T2; -.
DR STRING; 351160.RRC276; -.
DR GeneID; 5143745; -.
DR KEGG; rci:RRC276; -.
DR eggNOG; arCOG04701; Archaea.
DR OrthoDB; 253428at2157; -.
DR Proteomes; UP000000663; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0062054; F:fluoride channel activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0140114; P:cellular detoxification of fluoride; IEA:UniProtKB-UniRule.
DR HAMAP; MF_00454; CrcB; 1.
DR InterPro; IPR003691; FluC.
DR Pfam; PF02537; CRCB; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00454}; Ion channel {ECO:0000256|HAMAP-Rule:MF_00454};
KW Ion transport {ECO:0000256|HAMAP-Rule:MF_00454};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_00454};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00454};
KW Reference proteome {ECO:0000313|Proteomes:UP000000663};
KW Sodium {ECO:0000256|HAMAP-Rule:MF_00454};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW Rule:MF_00454};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW Rule:MF_00454}; Transport {ECO:0000256|HAMAP-Rule:MF_00454}.
FT TRANSMEM 33..53
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 65..83
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 95..116
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT BINDING 67
FT /ligand="Na(+)"
FT /ligand_id="ChEBI:CHEBI:29101"
FT /ligand_note="structural"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT BINDING 70
FT /ligand="Na(+)"
FT /ligand_id="ChEBI:CHEBI:29101"
FT /ligand_note="structural"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
SQ SEQUENCE 117 AA; 12364 MW; 6D8CFA673535D04D CRC64;
MDQLILVGAG GAIGSLLRFQ ISRMQAPRGI PPGTLFVNVT GSFLITLFIG LSVTGETYDL
LCTGLLGGYT TFSTFGFETF RLIESRDYKA AGANILYNVA GSLLAAYTGF KVAGLIL
//