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Entry version 105 (08 May 2019)
Sequence version 1 (01 May 2000)
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Protein

Potassium voltage-gated channel subfamily S member 3

Gene

KCNS3

Organism
Oryctolagus cuniculus (Rabbit)
Status
Reviewed-Annotation score:

Annotation score:3 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 transcript 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

Potassium channel subunit that does not form functional channels by itself. Can form functional heterotetrameric channels with KCNB1; modulates the delayed rectifier voltage-gated potassium channel activation and deactivation rates of KCNB1. Heterotetrameric channel activity formed with KCNB1 show increased current amplitude with the threshold for action potential activation shifted towards more negative values in hypoxic-treated pulmonary artery smooth muscle cells.By similarity

<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 functionIon channel, Potassium channel, Voltage-gated channel
Biological processIon transport, Potassium transport, Transport
LigandPotassium

<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_and_taxonomy_section">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:
Potassium voltage-gated channel subfamily S member 3
Alternative name(s):
Delayed-rectifier K(+) channel alpha subunit 3
Voltage-gated potassium channel subunit Kv9.3
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:KCNS3
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiOryctolagus cuniculus (Rabbit)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri9986 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresLagomorphaLeporidaeOryctolagus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000001811 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 2

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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 – 182CytoplasmicBy similarityAdd BLAST182
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei183 – 204Helical; Name=Segment S1By similarityAdd BLAST22
Topological domaini205 – 220ExtracellularBy similarityAdd BLAST16
Transmembranei221 – 243Helical; Name=Segment S2By similarityAdd BLAST23
Topological domaini244 – 254CytoplasmicBy similarityAdd BLAST11
Transmembranei255 – 275Helical; Name=Segment S3By similarityAdd BLAST21
Topological domaini276 – 285ExtracellularBy similarity10
Transmembranei286 – 306Helical; Voltage-sensor; Name=Segment S4By similarityAdd BLAST21
Topological domaini307 – 321CytoplasmicBy similarityAdd BLAST15
Transmembranei322 – 343Helical; Name=Segment S5By similarityAdd BLAST22
Topological domaini344 – 357ExtracellularBy similarityAdd BLAST14
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Intramembranei358 – 369Helical; Name=Pore helixBy similarityAdd BLAST12
Intramembranei370 – 377By similarity8
Topological domaini378 – 384ExtracellularBy similarity7
Transmembranei385 – 413Helical; Name=Segment S6By similarityAdd BLAST29
Topological domaini414 – 491CytoplasmicBy similarityAdd BLAST78

Keywords - Cellular componenti

Cell membrane, 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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000540881 – 491Potassium voltage-gated channel subfamily S member 3Add BLAST491

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q9TT17

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSOCUG00000007365 Expressed in 3 organ(s), highest expression level in prefrontal cortex

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Heterotetramer with KCNB1. Does not form homomultimers.By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9986.ENSOCUP00000006367

<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

3D structure databases

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

More...
SMRi
Q9TT17

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<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

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>Motifi370 – 375Selectivity filterBy similarity6

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The transmembrane segment S4 functions as voltage-sensor and is characterized by a series of positively charged amino acids at every third position. Channel opening and closing is effected by a conformation change that affects the position and orientation of the voltage-sensor paddle formed by S3 and S4 within the membrane. A transmembrane electric field that is positive inside would push the positively charged S4 segment outwards, thereby opening the pore, while a field that is negative inside would pull the S4 segment inwards and close the pore. Changes in the position and orientation of S4 are then transmitted to the activation gate formed by the inner helix bundle via the S4-S5 linker region.By similarity

<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

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3713 Eukaryota
COG1226 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000155979

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000231016

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q9TT17

KEGG Orthology (KO)

More...
KOi
K04933

Identification of Orthologs from Complete Genome Data

More...
OMAi
WDQKSND

Database of Orthologous Groups

More...
OrthoDBi
818306at2759

TreeFam database of animal gene trees

More...
TreeFami
TF313103

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.20.120.350, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000210 BTB/POZ_dom
IPR005821 Ion_trans_dom
IPR003968 K_chnl_volt-dep_Kv
IPR003971 K_chnl_volt-dep_Kv9
IPR011333 SKP1/BTB/POZ_sf
IPR003131 T1-type_BTB
IPR028325 VG_K_chnl
IPR027359 Volt_channel_dom_sf

The PANTHER Classification System

More...
PANTHERi
PTHR11537 PTHR11537, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02214 BTB_2, 1 hit
PF00520 Ion_trans, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01494 KV9CHANNEL
PR01491 KVCHANNEL

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00225 BTB, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF54695 SSF54695, 1 hit

<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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

Q9TT17-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVFGEFFHRP GPDEELVNLN VGGFKQSVDQ STLLRFPHTR LGKLLTCHSE
60 70 80 90 100
EAILELCDDY SVADKEYYFD RNPSLFRYVL NFYYTGKLHV MEELCVFSFC
110 120 130 140 150
QEIEYWGINE LFIDSCCSNR YQERKEENHE KDWDQKSNDV STDTSFEESS
160 170 180 190 200
VFEKELEKFD QLRFGQLRKK IWIRMENPAY CLSAKLIAIS SLSVVLASIV
210 220 230 240 250
AMCVHSMSEF QNEDGEVDDP VLEGVEIACI AWFTGELAVR LVAAPCQKKF
260 270 280 290 300
WKNPLNIIDF VSIIPFYATL AVDTKEEESE DIENMGKVVQ ILRLMRIFRI
310 320 330 340 350
LKLARHSVGL RSLGATLRHS YHEVGLLLLF LSVGISIFSV LIYSVEKDDH
360 370 380 390 400
TSSLTSIPIC WWWATISMTT VGYGDTHPVT LAGKLIASTC IICGILVVAL
410 420 430 440 450
PITIIFNKFS KYYQKQKDID VDQCSEDPPE KCPELPYFNI RDLYAQRVHA
460 470 480 490
FITSLSSVGI VVSDPDSTDA SSIEDNEDVY NTASLENCTA K
Length:491
Mass (Da):55,942
Last modified:May 1, 2000 - 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:i2EE396E0889D6F77
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AF209723 mRNA Translation: AAF22833.1

NCBI Reference Sequences

More...
RefSeqi
NP_001076121.1, NM_001082652.1

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSOCUT00000007364; ENSOCUP00000006367; ENSOCUG00000007365

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
100009354

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ocu:100009354

<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
AF209723 mRNA Translation: AAF22833.1
RefSeqiNP_001076121.1, NM_001082652.1

3D structure databases

SMRiQ9TT17
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9986.ENSOCUP00000006367

Proteomic databases

PRIDEiQ9TT17

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSOCUT00000007364; ENSOCUP00000006367; ENSOCUG00000007365
GeneIDi100009354
KEGGiocu:100009354

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
3790

Phylogenomic databases

eggNOGiKOG3713 Eukaryota
COG1226 LUCA
GeneTreeiENSGT00940000155979
HOGENOMiHOG000231016
InParanoidiQ9TT17
KOiK04933
OMAiWDQKSND
OrthoDBi818306at2759
TreeFamiTF313103

Gene expression databases

BgeeiENSOCUG00000007365 Expressed in 3 organ(s), highest expression level in prefrontal cortex

Family and domain databases

Gene3Di1.20.120.350, 1 hit
InterProiView protein in InterPro
IPR000210 BTB/POZ_dom
IPR005821 Ion_trans_dom
IPR003968 K_chnl_volt-dep_Kv
IPR003971 K_chnl_volt-dep_Kv9
IPR011333 SKP1/BTB/POZ_sf
IPR003131 T1-type_BTB
IPR028325 VG_K_chnl
IPR027359 Volt_channel_dom_sf
PANTHERiPTHR11537 PTHR11537, 1 hit
PfamiView protein in Pfam
PF02214 BTB_2, 1 hit
PF00520 Ion_trans, 1 hit
PRINTSiPR01494 KV9CHANNEL
PR01491 KVCHANNEL
SMARTiView protein in SMART
SM00225 BTB, 1 hit
SUPFAMiSSF54695 SSF54695, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiKCNS3_RABIT
<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: Q9TT17
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 25, 2002
Last sequence update: May 1, 2000
Last modified: May 8, 2019
This is version 105 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

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
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