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UniProtKB - Q8VIM4 (BSND_MOUSE)
Protein
Barttin
Gene
Bsnd
Organism
Mus musculus (Mouse)
Status
Functioni
Functions as a beta-subunit for CLCNKA and CLCNKB chloride channels. In the kidney CLCNK/BSND heteromers mediate chloride reabsorption by facilitating its basolateral efflux. In the stria, CLCNK/BSND channels drive potassium secretion by recycling chloride for the basolateral SLC12A2 cotransporter.
GO - Molecular functioni
- chloride channel regulator activity Source: MGI
GO - Biological processi
- cellular chloride ion homeostasis Source: UniProtKB
- cellular ion homeostasis Source: MGI
- cellular potassium ion homeostasis Source: UniProtKB
- chloride transport Source: MGI
- sensory perception of sound Source: UniProtKB
Enzyme and pathway databases
Reactomei | R-MMU-2672351, Stimuli-sensing channels |
Names & Taxonomyi
Protein namesi | Recommended name: Barttin |
Gene namesi | Name:Bsnd |
Organismi | Mus musculus (Mouse) |
Taxonomic identifieri | 10090 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus |
Proteomesi |
|
Organism-specific databases
MGIi | MGI:2153465, Bsnd |
VEuPathDBi | HostDB:ENSMUSG00000025418 |
Subcellular locationi
Plasma membrane
- Basolateral cell membrane 1 Publication; Multi-pass membrane protein 1 Publication
Note: Staining in membranes of the renal tubule is basolateral. Also detected in basolateral membranes of intercalated cells of the collecting duct, which are known to express CLCNKB as well. Both acid-secreting alpha-intercalated cells and base-secreting beta-intercalated cells express this protein basolaterally, but intervening AQP2-expressing principal cells appear devoid of protein expression. In the inner ear, colocalizes with CLCNK in K+-secreting marginal cells of the stria vascularis. The basolateral staining contrasts with the apical localization of the KCNQ1 K+ channel. Also found in K+-secreting vestibular dark cells, where it colocalized in basolateral membranes with CLCNK below apical membranes that expressed KCNQ1.
Plasma Membrane
- basolateral plasma membrane Source: UniProtKB
- integral component of plasma membrane Source: UniProtKB
Other locations
- integral component of membrane Source: MGI
- protein-containing complex Source: UniProtKB
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 1 – 5 | CytoplasmicSequence analysis | 5 | |
Transmembranei | 6 – 26 | HelicalSequence analysisAdd BLAST | 21 | |
Topological domaini | 27 – 32 | ExtracellularSequence analysis | 6 | |
Transmembranei | 33 – 53 | HelicalSequence analysisAdd BLAST | 21 | |
Topological domaini | 54 – 307 | CytoplasmicSequence analysisAdd BLAST | 254 |
Keywords - Cellular componenti
Cell membrane, MembranePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000065000 | 1 – 307 | BarttinAdd BLAST | 307 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Lipidationi | 54 | S-palmitoyl cysteineBy similarity | 1 | |
Lipidationi | 56 | S-palmitoyl cysteineBy similarity | 1 | |
Modified residuei | 79 | PhosphoserineCombined sources | 1 | |
Modified residuei | 107 | PhosphoserineCombined sources | 1 | |
Modified residuei | 162 | PhosphoserineCombined sources | 1 | |
Modified residuei | 228 | PhosphoserineCombined sources | 1 | |
Modified residuei | 289 | PhosphoserineBy similarity | 1 |
Post-translational modificationi
Palmitoylation is necessary for activation of plasma membrane-inserted CLC-K/barttin channels.By similarity
Keywords - PTMi
Lipoprotein, Palmitate, PhosphoproteinProteomic databases
jPOSTi | Q8VIM4 |
MaxQBi | Q8VIM4 |
PaxDbi | Q8VIM4 |
PRIDEi | Q8VIM4 |
ProteomicsDBi | 273846 |
PTM databases
iPTMneti | Q8VIM4 |
PhosphoSitePlusi | Q8VIM4 |
SwissPalmi | Q8VIM4 |
Expressioni
Tissue specificityi
Expression is evident in inner and outer stripes of the outer medulla of the kidney, most probably representing thin limbs of Henle's loop together with some collecting duct coursing through the outer stripe. In situ hybridization in fetal kidney at 18.5 dpc revealed a clear continuity between hybridization signals from the thin limb of Henle's loop and the distal convoluted tubule, suggesting that part of the expression pattern may result from expression in the thick ascending limb of Henle's loop. In addition, strong signals are present in a subset of cortical tubules, representing distal convoluted tubules or cortical collecting duct. Strong expression is also observed in the inner medulla of the kidney. This expression does not extend all the way to the tip of the papilla. Thus this signal most probably represents cells of the thin ascending limbs. In the inner ear, strong and exclusive expression is detected in marginal cells of the stria vascularis. In addition to cochlear signal, expression is observed in dark cells localized at the base of the crista ampullaris of the vestibular organ.2 Publications
Gene expression databases
Bgeei | ENSMUSG00000025418, Expressed in cortex of kidney and 67 other tissues |
Genevisiblei | Q8VIM4, MM |
Interactioni
Subunit structurei
Interacts with CLCNK channels. Forms probably heteromers with CLCNKA in the thin ascending limb of Henle and with CLCNKB in the thick ascending limb and more distal segments.
1 PublicationProtein-protein interaction databases
STRINGi | 10090.ENSMUSP00000049563 |
Miscellaneous databases
RNActi | Q8VIM4, protein |
Structurei
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 135 – 154 | DisorderedSequence analysisAdd BLAST | 20 | |
Regioni | 161 – 224 | DisorderedSequence analysisAdd BLAST | 64 | |
Regioni | 255 – 307 | DisorderedSequence analysisAdd BLAST | 53 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 195 – 209 | Polar residuesSequence analysisAdd BLAST | 15 |
Keywords - Domaini
Transmembrane, Transmembrane helixPhylogenomic databases
eggNOGi | ENOG502S3DP, Eukaryota |
GeneTreei | ENSGT00390000008549 |
HOGENOMi | CLU_078815_0_0_1 |
InParanoidi | Q8VIM4 |
OMAi | FYAMGSV |
OrthoDBi | 1577809at2759 |
TreeFami | TF335975 |
Family and domain databases
InterProi | View protein in InterPro IPR029181, Barttin |
PANTHERi | PTHR28399, PTHR28399, 1 hit |
Pfami | View protein in Pfam PF15462, Barttin, 1 hit |
i Sequence
Sequence statusi: Complete.
Q8VIM4-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MADEKTFRIG FIVLGLFLLS LGTFLMSHDR PQVYGTFYAM GSVMVIGGVI
60 70 80 90 100
WSMCQCYPKI TFVPADSDFQ GILSPKALSL LETGLSEVKS PQPPYVRLWE
110 120 130 140 150
EAAYDQSLPD FTHIQMKVMG YSEDPRPLLA PELKTGASSV REGEPRTAQA
160 170 180 190 200
WMEAPVVVHR GSDENEGEKS HSQSSPSVGP QGSAPLASFH DDLDVGSSEG
210 220 230 240 250
SSLQPSPNRD EPHRQVPWAS RGPLDRFSDF ALIDDTPTSE DTVLDGQARE
260 270 280 290 300
AALPRKQQWS LRMKGETVQA RAEEPEQEEE DLYYGLPDSP GNPLPDKELG
FEPDIQG
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 83 | T → A in AAL33907 (PubMed:11687798).Curated | 1 | |
Sequence conflicti | 292 | N → D in AAQ81629 (Ref. 2) Curated | 1 | |
Sequence conflicti | 292 | N → D in AAH38287 (PubMed:15489334).Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF391088 mRNA Translation: AAL33907.1 AY373833 mRNA Translation: AAQ81629.1 AK052587 mRNA Translation: BAC35049.1 AL954352 Genomic DNA No translation available. BC038287 mRNA Translation: AAH38287.1 |
CCDSi | CCDS18419.1 |
RefSeqi | NP_536706.2, NM_080458.2 |
Genome annotation databases
Ensembli | ENSMUST00000054472; ENSMUSP00000049563; ENSMUSG00000025418 |
GeneIDi | 140475 |
KEGGi | mmu:140475 |
UCSCi | uc008tyj.1, mouse |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF391088 mRNA Translation: AAL33907.1 AY373833 mRNA Translation: AAQ81629.1 AK052587 mRNA Translation: BAC35049.1 AL954352 Genomic DNA No translation available. BC038287 mRNA Translation: AAH38287.1 |
CCDSi | CCDS18419.1 |
RefSeqi | NP_536706.2, NM_080458.2 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Protein-protein interaction databases
STRINGi | 10090.ENSMUSP00000049563 |
PTM databases
iPTMneti | Q8VIM4 |
PhosphoSitePlusi | Q8VIM4 |
SwissPalmi | Q8VIM4 |
Proteomic databases
jPOSTi | Q8VIM4 |
MaxQBi | Q8VIM4 |
PaxDbi | Q8VIM4 |
PRIDEi | Q8VIM4 |
ProteomicsDBi | 273846 |
Protocols and materials databases
Antibodypediai | 33230, 176 antibodies from 25 providers |
DNASUi | 140475 |
Genome annotation databases
Ensembli | ENSMUST00000054472; ENSMUSP00000049563; ENSMUSG00000025418 |
GeneIDi | 140475 |
KEGGi | mmu:140475 |
UCSCi | uc008tyj.1, mouse |
Organism-specific databases
CTDi | 7809 |
MGIi | MGI:2153465, Bsnd |
VEuPathDBi | HostDB:ENSMUSG00000025418 |
Phylogenomic databases
eggNOGi | ENOG502S3DP, Eukaryota |
GeneTreei | ENSGT00390000008549 |
HOGENOMi | CLU_078815_0_0_1 |
InParanoidi | Q8VIM4 |
OMAi | FYAMGSV |
OrthoDBi | 1577809at2759 |
TreeFami | TF335975 |
Enzyme and pathway databases
Reactomei | R-MMU-2672351, Stimuli-sensing channels |
Miscellaneous databases
BioGRID-ORCSi | 140475, 0 hits in 64 CRISPR screens |
PROi | PR:Q8VIM4 |
RNActi | Q8VIM4, protein |
SOURCEi | Search... |
Gene expression databases
Bgeei | ENSMUSG00000025418, Expressed in cortex of kidney and 67 other tissues |
Genevisiblei | Q8VIM4, MM |
Family and domain databases
InterProi | View protein in InterPro IPR029181, Barttin |
PANTHERi | PTHR28399, PTHR28399, 1 hit |
Pfami | View protein in Pfam PF15462, Barttin, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | BSND_MOUSE | |
Accessioni | Q8VIM4Primary (citable) accession number: Q8VIM4 Secondary accession number(s): B1AZI5, Q8C740, Q8CHY0 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | October 11, 2004 |
Last sequence update: | October 3, 2012 | |
Last modified: | February 23, 2022 | |
This is version 117 of the entry and version 3 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- MGD cross-references
Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot