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Entry version 102 (07 Oct 2020)
Sequence version 1 (01 May 1991)
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Protein

Chloride channel protein

Gene
N/A
Organism
Torpedo marmorata (Marbled electric ray)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Voltage-gated chloride channel. This channel is thought to ensure the high conductance of the non-innervated membrane of the electrocyte necessary for efficient current generation caused by sodium influx through the acetylcholine receptor at the innervated membrane.

Miscellaneous

The CLC channel family contains both chloride channels and proton-coupled anion transporters that exchange chloride or another anion for protons. The absence of conserved gating glutamate residues is typical for family members that function as channels (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei123ChlorideBy similarity1
Binding sitei418Chloride; via amide nitrogenBy similarity1
Binding sitei512ChlorideBy similarity1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionChloride channel, Ion channel, Voltage-gated channel
Biological processIon transport, Transport
LigandChloride

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Chloride channel protein
Alternative name(s):
ClC-0
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiTorpedo marmorata (Marbled electric ray)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri7788 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataChondrichthyesElasmobranchiiBatoideaTorpediniformesTorpedinidaeTorpedo

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 48CytoplasmicBy similarityAdd BLAST48
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei49 – 86HelicalBy similarityAdd BLAST38
Transmembranei93 – 116HelicalBy similarityAdd BLAST24
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a region that is buried within a membrane, but does not cross it.<p><a href='/help/intramem' target='_top'>More...</a></p>Intramembranei125 – 132HelicalBy similarity8
Transmembranei141 – 159HelicalBy similarityAdd BLAST19
Transmembranei166 – 184HelicalBy similarityAdd BLAST19
Intramembranei201 – 213HelicalBy similarityAdd BLAST13
Intramembranei217 – 225HelicalBy similarity9
Transmembranei237 – 256HelicalBy similarityAdd BLAST20
Transmembranei283 – 311HelicalBy similarityAdd BLAST29
Transmembranei320 – 339HelicalBy similarityAdd BLAST20
Transmembranei388 – 408HelicalBy similarityAdd BLAST21
Transmembranei416 – 439HelicalBy similarityAdd BLAST24
Intramembranei456 – 470HelicalBy similarityAdd BLAST15
Intramembranei471 – 472Note=Loop between two helicesBy similarity2
Intramembranei473 – 484HelicalBy similarityAdd BLAST12
Intramembranei485 – 489Note=Loop between two helicesBy similarity5
Transmembranei490 – 507HelicalBy similarityAdd BLAST18
Topological domaini508 – 805CytoplasmicBy similarityAdd BLAST298

Keywords - Cellular componenti

Membrane

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000944641 – 805Chloride channel proteinAdd BLAST805

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi365N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer. Each subunit contains a channel ('Double barreled channel').

1 Publication

Protein-protein interaction databases

Database of interacting proteins

More...
DIPi
DIP-29086N

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1805
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P21564

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P21564

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini543 – 601CBS 1PROSITE-ProRule annotationAdd BLAST59
Domaini719 – 776CBS 2PROSITE-ProRule annotationAdd BLAST58

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi122 – 126Selectivity filter part_1By similarity5
Motifi164 – 168Selectivity filter part_2By similarity5
Motifi416 – 420Selectivity filter part_3By similarity5

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Keywords - Domaini

CBS domain, Repeat, Transmembrane, Transmembrane helix

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.3080.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000644, CBS_dom
IPR014743, Cl-channel_core
IPR001807, Cl-channel_volt-gated
IPR002242, Cl_channel-0

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00654, Voltage_CLC, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00762, CLCHANNEL
PR01111, CLCHANNEL0

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF81340, SSF81340, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51371, CBS, 2 hits

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

P21564-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSHEKNEASG YPEAQSWKSQ EAMLGARTEV SRWRAVKNCL YRHLVKVLGE
60 70 80 90 100
DWIFLLLLGA LMALVSWAMD FIGSRGLRFY KYLFALVEGN IGLQYLVWVC
110 120 130 140 150
YPLALILFSS LFCQIVSPQA VGSGIPELKT IIRGAVLHEY LTLRTFVAKT
160 170 180 190 200
VGLTVALSAG FPLGKEGPFV HIASICATLL NQLLCFISGR REEPYYLRAD
210 220 230 240 250
ILTVGCALGI SCCFGTPLAG VLFSIEVTCS HFGVRSYWRG FLGGAFSAFI
260 270 280 290 300
FRVLSVWVKD TVTLTALFKT NFRGDIPFDL QEMPAFAIIG IASGFFGALF
310 320 330 340 350
VYLNRQIIVF MRKKNFVTKI LKKQRLIYPA VVTFVLATLR FPPGVGQFFG
360 370 380 390 400
AGLMPRETIN SLFDNYTWTK TIDPRGLGNS AQWFIPHLNI FIVMALYFVM
410 420 430 440 450
HFWMAALAVT MPVPCGAFVP VFNLGAVLGR FVGELMALLF PDGLVSNGNL
460 470 480 490 500
YHILPGEYAV IGAAAMTGAV THAVSTAVIC FELTGQISHV LPMMVAVILA
510 520 530 540 550
NMVAQGLQPS LYDSIIQIKK LPYLPELSWS SANKYNIQVG DIMVRDVTSI
560 570 580 590 600
ASTSTYGDLL HVLRQTKLKF FPFVDTPDTN TLLGSIDRTE VEGLLQRRIS
610 620 630 640 650
AYRRQPAAAA EADEEGRNGE TGASFTGEAE SSFAYIDQED AEGQQREGLE
660 670 680 690 700
AVKVQTEDPR PPSPVPAEEP TQTSGIYQKK QKGTGQVASR FEEMLTLEEI
710 720 730 740 750
YRWEQREKNV VVNFETCRID QSPFQLVEGT SLQKTHTLFS LLGLDRAYVT
760 770 780 790 800
SMGKLVGVVA LAEIQAAIEG SYQKGFRLPP PLASFRDVKH ARNSGRTATS

NSSGK
Length:805
Mass (Da):88,888
Last modified:May 1, 1991 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i4CD2FA48AE06FC6D
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
X56758 mRNA Translation: CAA40078.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S13410

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56758 mRNA Translation: CAA40078.1
PIRiS13410

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2D4ZX-ray3.10A/B525-774[»]
SMRiP21564
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

DIPiDIP-29086N

Miscellaneous databases

EvolutionaryTraceiP21564

Family and domain databases

Gene3Di1.10.3080.10, 1 hit
InterProiView protein in InterPro
IPR000644, CBS_dom
IPR014743, Cl-channel_core
IPR001807, Cl-channel_volt-gated
IPR002242, Cl_channel-0
PfamiView protein in Pfam
PF00654, Voltage_CLC, 1 hit
PRINTSiPR00762, CLCHANNEL
PR01111, CLCHANNEL0
SUPFAMiSSF81340, SSF81340, 1 hit
PROSITEiView protein in PROSITE
PS51371, CBS, 2 hits

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiCICH_TORMA
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P21564
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 1, 1991
Last sequence update: May 1, 1991
Last modified: October 7, 2020
This is version 102 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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