ID U1KNY3_9GAMM Unreviewed; 126 AA.
AC U1KNY3;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 24-JAN-2024, entry version 35.
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 ORFNames=PCIT_11014 {ECO:0000313|EMBL:ERG18699.1};
OS Pseudoalteromonas citrea DSM 8771.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Pseudoalteromonadaceae; Pseudoalteromonas.
OX NCBI_TaxID=1117314 {ECO:0000313|EMBL:ERG18699.1, ECO:0000313|Proteomes:UP000016487};
RN [1] {ECO:0000313|EMBL:ERG18699.1, ECO:0000313|Proteomes:UP000016487}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 8771 {ECO:0000313|Proteomes:UP000016487};
RX PubMed=22535931; DOI=10.1128/JB.00265-12;
RA Xie B.B., Shu Y.L., Qin Q.L., Rong J.C., Zhang X.Y., Chen X.L., Shi M.,
RA He H.L., Zhou B.C., Zhang Y.Z.;
RT "Genome sequences of type strains of seven species of the marine bacterium
RT Pseudoalteromonas.";
RL J. Bacteriol. 194:2746-2747(2012).
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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ERG18699.1}.
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DR EMBL; AHBZ02000127; ERG18699.1; -; Genomic_DNA.
DR AlphaFoldDB; U1KNY3; -.
DR STRING; 1117314.PCIT_11014; -.
DR eggNOG; COG0239; Bacteria.
DR OrthoDB; 9806299at2; -.
DR Proteomes; UP000016487; Unassembled WGS sequence.
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.
DR PROSITE; PS51257; PROKAR_LIPOPROTEIN; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00454};
KW Ion channel {ECO:0000256|ARBA:ARBA00023303, ECO:0000256|HAMAP-
KW Rule:MF_00454}; 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:UP000016487};
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 35..56
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 68..92
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT TRANSMEM 104..123
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT BINDING 76
FT /ligand="Na(+)"
FT /ligand_id="ChEBI:CHEBI:29101"
FT /ligand_note="structural"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
FT BINDING 79
FT /ligand="Na(+)"
FT /ligand_id="ChEBI:CHEBI:29101"
FT /ligand_note="structural"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00454"
SQ SEQUENCE 126 AA; 13547 MW; 0C57532C155922CE CRC64;
MIKMYLTIAL GGALGACLRF FISDMTLKLL GRGFPFGTLT VNIIGSLLMG ILYGLIEKQI
ITVSPAKSLL GIGFLGALTT FSTFSIDSVL LLQQGHIMKM ALNVTLNVVV CIFMAWLGLC
LVMQKG
//
