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Aliases for KCNIP2 Gene

Aliases for KCNIP2 Gene

  • Kv Channel Interacting Protein 2 2 3
  • Cardiac Voltage-Gated Potassium Channel Modulatory Subunit 3 4
  • A-Type Potassium Channel Modulatory Protein 2 3 4
  • Potassium Channel-Interacting Protein 2 3 4
  • Kv Channel-Interacting Protein 2 2 3
  • KCHIP2 3 4

External Ids for KCNIP2 Gene

Previous GeneCards Identifiers for KCNIP2 Gene

  • GC10M102478
  • GC10M102819
  • GC10M103716
  • GC10M103250
  • GC10M103575
  • GC10M097216

Summaries for KCNIP2 Gene

Entrez Gene Summary for KCNIP2 Gene

  • This gene encodes a member of the family of voltage-gated potassium (Kv) channel-interacting proteins (KCNIPs), which belongs to the recoverin branch of the EF-hand superfamily. Members of the KCNIP family are small calcium binding proteins. They all have EF-hand-like domains, and differ from each other in the N-terminus. They are integral subunit components of native Kv4 channel complexes. They may regulate A-type currents, and hence neuronal excitability, in response to changes in intracellular calcium. Multiple alternatively spliced transcript variants encoding distinct isoforms have been identified from this gene. [provided by RefSeq, Jul 2008]

GeneCards Summary for KCNIP2 Gene

KCNIP2 (Kv Channel Interacting Protein 2) is a Protein Coding gene. Among its related pathways are Antiarrhythmic Pathway, Pharmacodynamics. GO annotations related to this gene include calcium ion binding and protein N-terminus binding. An important paralog of this gene is KCNIP3.

UniProtKB/Swiss-Prot for KCNIP2 Gene

  • Regulatory subunit of Kv4/D (Shal)-type voltage-gated rapidly inactivating A-type potassium channels. Modulates channel density, inactivation kinetics and rate of recovery from inactivation in a calcium-dependent and isoform-specific manner. In vitro, modulates KCND2/Kv4.2 and KCND3/Kv4.3 currents. Involved in KCND2 and KCND3 trafficking to the cell surface. May be required for the expression of I(To) currents in the heart (By similarity).

Tocris Summary for KCNIP2 Gene

  • Voltage-gated potassium channels (KV) belong to the 6-TM family of potassium channel that also comprises the Ca2+-activated Slo (actually 7-TM) and the Ca2+-activated SK subfamilies. The pore-forming alpha-subunits contain a single pore-forming region and combine to form tetramers. Heteromeric channels can be formed within subfamilies e.g. KV1.1 with KV1.2 and KCNQ2 with KCNQ3.

Gene Wiki entry for KCNIP2 Gene

No data available for PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KCNIP2 Gene

Genomics for KCNIP2 Gene

Regulatory Elements for KCNIP2 Gene

Transcription factor binding sites by QIAGEN in the KCNIP2 gene promoter:

Genomic Location for KCNIP2 Gene

101,825,974 bp from pter
101,843,920 bp from pter
17,947 bases
Minus strand

Genomic View for KCNIP2 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for KCNIP2 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for KCNIP2 Gene

Proteins for KCNIP2 Gene

  • Protein details for KCNIP2 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Kv channel-interacting protein 2
    Protein Accession:
    Secondary Accessions:
    • A6NJE5
    • A8MQ75
    • Q3YAC6
    • Q3YAC8
    • Q3YAC9
    • Q7Z6F1
    • Q96K86
    • Q96T41
    • Q96T42
    • Q96T43
    • Q96T44
    • Q9H0N4
    • Q9HD10
    • Q9HD11
    • Q9NS60
    • Q9NY10
    • Q9NZI1

    Protein attributes for KCNIP2 Gene

    270 amino acids
    Molecular mass:
    30907 Da
    Quaternary structure:
    • Component of heteromultimeric potassium channels. Identified in potassium channel complexes containing KCND1, KCND2, KCND3, KCNIP1, KCNIP2, KCNIP3, KCNIP4, DPP6 and DPP10 (By similarity). The KCND2-KCNIP2 channel complex contains four KCND2 and four KCNIP2 subunits (PubMed:14623880, PubMed:14980201). Interacts with KCND2 (PubMed:10676964, PubMed:14623880, PubMed:14980201). Isoform 1 and isoform 3 interact with KCND3 isoform 1. Probably part of a complex consisting of KCNIP1, KCNIP2 isoform 3 and KCND2. At least isoform 2 and isoform 3 can self-associate to form homodimers and homotetramers. Isoform 3 interacts with KCNIP1 in a calcium-dependent manner.

    Alternative splice isoforms for KCNIP2 Gene

neXtProt entry for KCNIP2 Gene

Proteomics data for KCNIP2 Gene at MOPED

Post-translational modifications for KCNIP2 Gene

  • Palmitoylated. Palmitoylation enhances association with the plasma membrane.
  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

No data available for DME Specific Peptides for KCNIP2 Gene

Domains for KCNIP2 Gene

Gene Families for KCNIP2 Gene

  • EFHAND :EF-hand domain containing

Protein Domains for KCNIP2 Gene

Graphical View of Domain Structure for InterPro Entry



  • Q9NS61
  • Contains 4 EF-hand domains.
  • Belongs to the recoverin family.
genes like me logo Genes that share domains with KCNIP2: view

Function for KCNIP2 Gene

Molecular function for KCNIP2 Gene

UniProtKB/Swiss-Prot Function: Regulatory subunit of Kv4/D (Shal)-type voltage-gated rapidly inactivating A-type potassium channels. Modulates channel density, inactivation kinetics and rate of recovery from inactivation in a calcium-dependent and isoform-specific manner. In vitro, modulates KCND2/Kv4.2 and KCND3/Kv4.3 currents. Involved in KCND2 and KCND3 trafficking to the cell surface. May be required for the expression of I(To) currents in the heart (By similarity).

Gene Ontology (GO) - Molecular Function for KCNIP2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005250 A-type (transient outward) potassium channel activity TAS 11287421
GO:0005509 calcium ion binding TAS 11287421
GO:0005515 protein binding IPI 14623880
GO:0015459 potassium channel regulator activity IDA 21493962
GO:0042802 identical protein binding IPI 15358149
genes like me logo Genes that share ontologies with KCNIP2: view
genes like me logo Genes that share phenotypes with KCNIP2: view

Animal Models for KCNIP2 Gene

MGI Knock Outs for KCNIP2:

No data available for Enzyme Numbers (IUBMB) , miRNA , Transcription Factor Targeting and HOMER Transcription for KCNIP2 Gene

Localization for KCNIP2 Gene

Subcellular locations from UniProtKB/Swiss-Prot for KCNIP2 Gene

Isoform 1: Cell membrane; Lipid-anchor. Note=Detected on lipid rafts (By similarity). {ECO:0000250 UniProtKB:Q9JM59}.
Isoform 2: Cell membrane; Lipid-anchor.
Isoform 6: Cell membrane; Lipid-anchor.

Subcellular locations from

Jensen Localization Image for KCNIP2 Gene COMPARTMENTS Subcellular localization image for KCNIP2 gene
Compartment Confidence
plasma membrane 5
cytosol 2
nucleus 2

Gene Ontology (GO) - Cellular Components for KCNIP2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005578 proteinaceous extracellular matrix --
GO:0005737 cytoplasm IDA 11287421
GO:0008076 voltage-gated potassium channel complex NAS 11287421
genes like me logo Genes that share ontologies with KCNIP2: view

Pathways for KCNIP2 Gene

genes like me logo Genes that share pathways with KCNIP2: view

Pathways by source for KCNIP2 Gene

1 PharmGKB pathway for KCNIP2 Gene

Gene Ontology (GO) - Biological Process for KCNIP2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005513 detection of calcium ion TAS 10676964
GO:0006813 potassium ion transport TAS 11287421
GO:0006936 muscle contraction NAS 11287421
GO:0007165 signal transduction TAS 10676964
GO:0007268 synaptic transmission NAS 11287421
genes like me logo Genes that share ontologies with KCNIP2: view

Compounds for KCNIP2 Gene

(5) Tocris Compounds for KCNIP2 Gene

Compound Action Cas Number
4-Aminopyridine Non-selective KV channel blocker [504-24-5]
E-4031 dihydrochloride KV11.1 (hERG) channel blocker; inhibits rapid delayed rectifier K+ current (IKr) [113559-13-0]
Margatoxin Potent KV1.3 channel blocker [145808-47-5]
MaxiPost Potassium channel modulator; exerts subtype-specific effects [187523-35-9]
XE 991 dihydrochloride Potent, selective KV7 (KCNQ) channel blocker; blocks M-currents [122955-13-9]

(2) HMDB Compounds for KCNIP2 Gene

Compound Synonyms Cas Number PubMed IDs
  • Ca
  • K+

(1) Novoseek inferred chemical compound relationships for KCNIP2 Gene

Compound -log(P) Hits PubMed IDs
potassium 56.8 3
genes like me logo Genes that share compounds with KCNIP2: view

Transcripts for KCNIP2 Gene

Unigene Clusters for KCNIP2 Gene

Kv channel interacting protein 2:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for KCNIP2 Gene

ExUns: 1 ^ 2a · 2b ^ 3a · 3b ^ 4a · 4b · 4c ^ 5a · 5b ^ 6a · 6b ^ 7a · 7b ^ 8 ^ 9a · 9b ^ 10 ^ 11a · 11b ^ 12a · 12b · 12c ^ 13a · 13b
SP1: - - - - - -
SP2: - - - - - - - -
SP3: - - - - - - - - -
SP4: - - - -
SP5: - - - - - - - - -
SP7: - - - - - - - - - -
SP8: - -
SP9: - - - - - - - - -
SP10: - - - - - - - -
SP11: - - - - - - - - - -

Relevant External Links for KCNIP2 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for KCNIP2 Gene

mRNA expression in normal human tissues for KCNIP2 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for KCNIP2 Gene

This gene is overexpressed in Heart - Atrial Appendage (7.3), Brain - Nucleus accumbens (basal ganglia) (6.5), Heart - Left Ventricle (6.5), Brain - Putamen (basal ganglia) (6.0), and Brain - Caudate (basal ganglia) (5.1).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for KCNIP2 Gene

SOURCE GeneReport for Unigene cluster for KCNIP2 Gene Hs.97044

mRNA Expression by UniProt/SwissProt for KCNIP2 Gene

Tissue specificity: Expressed in brain. Colocalizes with KCND2 in excitatory neurons including cortical and hippocampal CA1 pyramidal cells. Isoform 3 is expressed in heart and in umbilical vein endothelial cells. Not expressed in fetal heart.
genes like me logo Genes that share expressions with KCNIP2: view

Orthologs for KCNIP2 Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for KCNIP2 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia KCNIP2 35
  • 99.74 (n)
  • 99.6 (a)
  • 100 (a)
(Bos Taurus)
Mammalia KCNIP2 36
  • 99 (a)
(Canis familiaris)
Mammalia KCHIP2 36
  • 96 (a)
  • 94.32 (n)
  • 98.15 (a)
(Mus musculus)
Mammalia Kcnip2 35
  • 92.35 (n)
  • 96.67 (a)
Kcnip2 16
Kcnip2 36
  • 97 (a)
(Monodelphis domestica)
Mammalia KCNIP2 36
  • 86 (a)
(Ornithorhynchus anatinus)
Mammalia KCNIP2 36
  • 82 (a)
(Rattus norvegicus)
Mammalia LOC100911951 35
  • 91.46 (n)
  • 95.44 (a)
(Gallus gallus)
Aves KCNIP2 35
  • 83.73 (n)
  • 92.86 (a)
  • 92 (a)
(Anolis carolinensis)
Reptilia KCNIP2 36
  • 88 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia kcnip2 35
  • 78.31 (n)
  • 90.08 (a)
(Danio rerio)
Actinopterygii kcnip2 36
  • 63 (a)
KCNIP2 (1 of 2) 36
  • 61 (a)
LOC100003947 35
  • 67.59 (n)
  • 67.46 (a)
fruit fly
(Drosophila melanogaster)
Insecta CG42683 36
  • 16 (a)
CG5890 36
  • 43 (a)
CG5890 37
  • 49 (a)
(Caenorhabditis elegans)
Secernentea ncs-4 36
  • 27 (a)
ncs-7 36
  • 35 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes FRQ1 36
  • 40 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 41 (a)
Species with no ortholog for KCNIP2:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for KCNIP2 Gene

Gene Tree for KCNIP2 (if available)
Gene Tree for KCNIP2 (if available)

Paralogs for KCNIP2 Gene

Selected SIMAP similar genes for KCNIP2 Gene using alignment to 4 proteins:

genes like me logo Genes that share paralogs with KCNIP2: view

Variants for KCNIP2 Gene

Sequence variations from dbSNP and Humsavar for KCNIP2 Gene

SNP ID Clin Chr 10 pos Sequence Context AA Info Type MAF
rs755380 -- 101,835,314(-) TTTCA(C/T)TGCCT intron-variant
rs755381 -- 101,835,139(-) ATACA(A/G)CACAT intron-variant
rs874885 -- 101,839,568(-) CTTAC(A/T)GAGCA intron-variant
rs3781298 -- 101,831,720(-) TATGC(A/C)TCCTG intron-variant
rs3781299 -- 101,830,837(-) GTGTG(G/T)GGGGG intron-variant

Relevant External Links for KCNIP2 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot and Structural Variations from Database of Genomic Variants (DGV) for KCNIP2 Gene

Disorders for KCNIP2 Gene

Relevant External Links for KCNIP2

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with KCNIP2: view

No data available for UniProtKB/Swiss-Prot for KCNIP2 Gene

Publications for KCNIP2 Gene

  1. Modulation of Kv4.3 current by accessory subunits. (PMID: 12297301) Deschenes I. … Tomaselli G.F. (FEBS Lett. 2002) 3 4 23
  2. Structure, alternative splicing, and expression of the human and mouse KCNIP gene family. (PMID: 16112838) Pruunsild P. … Timmusk T. (Genomics 2005) 3 4 23
  3. Molecular cloning and expression of the novel splice variants of K(+) channel-interacting protein 2. (PMID: 11263977) Ohya S. … Imaizumi Y. (Biochem. Biophys. Res. Commun. 2001) 3 4 23
  4. Modulation of A-type potassium channels by a family of calcium sensors. (PMID: 10676964) An W.F. … Rhodes K.J. (Nature 2000) 2 3 4
  5. [Atrial myocytes KChIP2 mRNA expression in rheumatic heart disease patients with atrial fibrillation]. (PMID: 19927631) Tan X.Q. … Zeng X.R. (Zhonghua Xin Xue Guan Bing Za Zhi 2009) 3 23

Products for KCNIP2 Gene

Sources for KCNIP2 Gene

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