ID C6A1Q4_THESM Unreviewed; 128 AA.
AC C6A1Q4;
DT 01-SEP-2009, integrated into UniProtKB/TrEMBL.
DT 01-SEP-2009, sequence version 1.
DT 27-MAR-2024, entry version 74.
DE RecName: Full=Fluoride-specific ion channel FluC {ECO:0000256|HAMAP-Rule:MF_00454};
GN Name=fluC {ECO:0000256|HAMAP-Rule:MF_00454};
GN Synonyms=crcB {ECO:0000256|HAMAP-Rule:MF_00454};
GN OrderedLocusNames=TSIB_0483 {ECO:0000313|EMBL:ACS89549.1};
OS Thermococcus sibiricus (strain DSM 12597 / MM 739).
OC Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC Thermococcus.
OX NCBI_TaxID=604354 {ECO:0000313|EMBL:ACS89549.1, ECO:0000313|Proteomes:UP000009079};
RN [1] {ECO:0000313|EMBL:ACS89549.1, ECO:0000313|Proteomes:UP000009079}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 12597 / MM 739 {ECO:0000313|Proteomes:UP000009079};
RX PubMed=19447963; DOI=10.1128/AEM.00718-09;
RA Mardanov A.V., Ravin N.V., Svetlitchnyi V.A., Beletsky A.V.,
RA Miroshnichenko M.L., Bonch-Osmolovskaya E.A., Skryabin K.G.;
RT "Metabolic versatility and indigenous origin of the archaeon Thermococcus
RT sibiricus, isolated from a siberian oil reservoir, as revealed by genome
RT analysis.";
RL Appl. Environ. Microbiol. 75:4580-4588(2009).
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; CP001463; ACS89549.1; -; Genomic_DNA.
DR AlphaFoldDB; C6A1Q4; -.
DR STRING; 604354.TSIB_0483; -.
DR KEGG; tsi:TSIB_0483; -.
DR eggNOG; arCOG04701; Archaea.
DR HOGENOM; CLU_114342_3_0_2; -.
DR Proteomes; UP000009079; 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 NCBIfam; TIGR00494; crcB; 1.
DR PANTHER; PTHR28259; FLUORIDE EXPORT PROTEIN 1-RELATED; 1.
DR PANTHER; PTHR28259:SF1; FLUORIDE EXPORT PROTEIN 1-RELATED; 1.
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:UP000009079};
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 12..32
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 38..60
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 72..90
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 102..126
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT BINDING 80
FT /ligand="Na(+)"
FT /ligand_id="ChEBI:CHEBI:29101"
FT /ligand_note="structural"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT BINDING 83
FT /ligand="Na(+)"
FT /ligand_id="ChEBI:CHEBI:29101"
FT /ligand_note="structural"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
SQ SEQUENCE 128 AA; 13952 MW; 9B49ADF48522C6B1 CRC64;
MGAGKMNAKV LLAVGVGGML GAIMRYSIAG LLPVYKDFPV GTLLVNSIAS FLLGYLYGLV
FFGYEVSPNW RVFFGTGFCG GLSTFSTFSY ETFSLLRERE HFLALLNISA NIIITVSLVF
LGFVLARR
//
