Details for: KCNIP2

Gene ID: 30819

Symbol: KCNIP2

Ensembl ID: ENSG00000120049

Description: potassium voltage-gated channel interacting protein 2

Associated with

Cells (max top 100)

(Cell Significance Index and respective Thresholds are uniquely calculated using our advanced thresholding algorithms to reveal cell-specific gene markers)

  • Cell Name: polychromatophilic erythroblast (CL0000550)
    Fold Change: 57.3788
    Cell Significance Index: -8.9300
  • Cell Name: hematopoietic oligopotent progenitor cell (CL0002032)
    Fold Change: 35.2463
    Cell Significance Index: -8.9400
  • Cell Name: indirect pathway medium spiny neuron (CL4023029)
    Fold Change: 2.1215
    Cell Significance Index: 93.8400
  • Cell Name: direct pathway medium spiny neuron (CL4023026)
    Fold Change: 2.0231
    Cell Significance Index: 76.6100
  • Cell Name: adipocyte of breast (CL0002617)
    Fold Change: 1.6613
    Cell Significance Index: 20.9200
  • Cell Name: hippocampal granule cell (CL0001033)
    Fold Change: 1.3394
    Cell Significance Index: 90.0600
  • Cell Name: epidermal Langerhans cell (CL0002457)
    Fold Change: 1.1194
    Cell Significance Index: -2.4500
  • Cell Name: L2/3-6 intratelencephalic projecting glutamatergic neuron (CL4023040)
    Fold Change: 0.9457
    Cell Significance Index: 189.7100
  • Cell Name: cone retinal bipolar cell (CL0000752)
    Fold Change: 0.9276
    Cell Significance Index: 7.1500
  • Cell Name: hippocampal pyramidal neuron (CL1001571)
    Fold Change: 0.8337
    Cell Significance Index: 23.7900
  • Cell Name: intestinal tuft cell (CL0019032)
    Fold Change: 0.8075
    Cell Significance Index: 49.5100
  • Cell Name: cardiac muscle myoblast (CL0000513)
    Fold Change: 0.8017
    Cell Significance Index: 61.5300
  • Cell Name: transit amplifying cell of colon (CL0009011)
    Fold Change: 0.6589
    Cell Significance Index: 21.1100
  • Cell Name: glycinergic neuron (CL1001509)
    Fold Change: 0.4264
    Cell Significance Index: 22.3900
  • Cell Name: GABAergic amacrine cell (CL4030027)
    Fold Change: 0.3366
    Cell Significance Index: 4.1800
  • Cell Name: GABAergic interneuron (CL0011005)
    Fold Change: 0.3273
    Cell Significance Index: 226.3800
  • Cell Name: retinal bipolar neuron (CL0000748)
    Fold Change: 0.3242
    Cell Significance Index: 3.9300
  • Cell Name: enteroendocrine cell of colon (CL0009042)
    Fold Change: 0.2752
    Cell Significance Index: 52.3800
  • Cell Name: L6 intratelencephalic projecting glutamatergic neuron of the primary motor cortex (CL4023050)
    Fold Change: 0.2714
    Cell Significance Index: 3.6200
  • Cell Name: obsolete caudal ganglionic eminence derived GABAergic cortical interneuron (CL4023070)
    Fold Change: 0.2372
    Cell Significance Index: 85.0700
  • Cell Name: Purkinje cell (CL0000121)
    Fold Change: 0.2023
    Cell Significance Index: 4.4300
  • Cell Name: forebrain neuroblast (CL1000042)
    Fold Change: 0.1926
    Cell Significance Index: 11.8400
  • Cell Name: cortical cell of adrenal gland (CL0002097)
    Fold Change: 0.1553
    Cell Significance Index: 4.1600
  • Cell Name: cortical interneuron (CL0008031)
    Fold Change: 0.1509
    Cell Significance Index: 3.6200
  • Cell Name: tuft cell of colon (CL0009041)
    Fold Change: 0.1115
    Cell Significance Index: 100.7000
  • Cell Name: small intestine goblet cell (CL1000495)
    Fold Change: 0.0925
    Cell Significance Index: 3.2500
  • Cell Name: colon goblet cell (CL0009039)
    Fold Change: 0.0838
    Cell Significance Index: 8.2900
  • Cell Name: hippocampal interneuron (CL1001569)
    Fold Change: 0.0644
    Cell Significance Index: 0.8300
  • Cell Name: enterocyte of epithelium of large intestine (CL0002071)
    Fold Change: 0.0640
    Cell Significance Index: 2.9000
  • Cell Name: enterocyte of epithelium of small intestine (CL1000334)
    Fold Change: 0.0538
    Cell Significance Index: 1.5500
  • Cell Name: intestinal crypt stem cell of colon (CL0009043)
    Fold Change: 0.0505
    Cell Significance Index: 5.4900
  • Cell Name: gut absorptive cell (CL0000677)
    Fold Change: 0.0493
    Cell Significance Index: 2.9600
  • Cell Name: OFF-bipolar cell (CL0000750)
    Fold Change: 0.0488
    Cell Significance Index: 0.4300
  • Cell Name: epithelial cell of small intestine (CL0002254)
    Fold Change: 0.0457
    Cell Significance Index: 7.4300
  • Cell Name: pigmented ciliary epithelial cell (CL0002303)
    Fold Change: 0.0307
    Cell Significance Index: 4.4600
  • Cell Name: neoplastic cell (CL0001063)
    Fold Change: 0.0288
    Cell Significance Index: 5.7200
  • Cell Name: chandelier cell (CL4023083)
    Fold Change: 0.0260
    Cell Significance Index: 0.2100
  • Cell Name: subcutaneous adipocyte (CL0002521)
    Fold Change: 0.0092
    Cell Significance Index: 0.0400
  • Cell Name: pigmented epithelial cell (CL0000529)
    Fold Change: 0.0038
    Cell Significance Index: 7.2100
  • Cell Name: skeletal muscle fiber (CL0008002)
    Fold Change: 0.0031
    Cell Significance Index: 0.0800
  • Cell Name: enteroendocrine cell of small intestine (CL0009006)
    Fold Change: -0.0004
    Cell Significance Index: -0.0100
  • Cell Name: anterior lens cell (CL0002223)
    Fold Change: -0.0004
    Cell Significance Index: -0.8000
  • Cell Name: lens epithelial cell (CL0002224)
    Fold Change: -0.0023
    Cell Significance Index: -3.6000
  • Cell Name: cardiac muscle cell (CL0000746)
    Fold Change: -0.0027
    Cell Significance Index: -0.0400
  • Cell Name: secondary lens fiber (CL0002225)
    Fold Change: -0.0043
    Cell Significance Index: -5.8900
  • Cell Name: non-pigmented ciliary epithelial cell (CL0002304)
    Fold Change: -0.0060
    Cell Significance Index: -3.8300
  • Cell Name: kidney loop of Henle cortical thick ascending limb epithelial cell (CL1001109)
    Fold Change: -0.0108
    Cell Significance Index: -7.9500
  • Cell Name: pvalb GABAergic cortical interneuron (CL4023018)
    Fold Change: -0.0108
    Cell Significance Index: -0.2300
  • Cell Name: ciliary muscle cell (CL1000443)
    Fold Change: -0.0109
    Cell Significance Index: -4.9300
  • Cell Name: pancreatic A cell (CL0000171)
    Fold Change: -0.0109
    Cell Significance Index: -8.1100
  • Cell Name: intermediate cell of urothelium (CL4030055)
    Fold Change: -0.0120
    Cell Significance Index: -2.1600
  • Cell Name: pulmonary alveolar epithelial cell (CL0000322)
    Fold Change: -0.0127
    Cell Significance Index: -9.6000
  • Cell Name: cell in vitro (CL0001034)
    Fold Change: -0.0132
    Cell Significance Index: -7.2300
  • Cell Name: eye photoreceptor cell (CL0000287)
    Fold Change: -0.0133
    Cell Significance Index: -0.8400
  • Cell Name: type B pancreatic cell (CL0000169)
    Fold Change: -0.0155
    Cell Significance Index: -8.7500
  • Cell Name: microfold cell of epithelium of small intestine (CL1000353)
    Fold Change: -0.0165
    Cell Significance Index: -1.1400
  • Cell Name: pancreatic PP cell (CL0002275)
    Fold Change: -0.0166
    Cell Significance Index: -10.3500
  • Cell Name: lamp5 GABAergic cortical interneuron (CL4023011)
    Fold Change: -0.0181
    Cell Significance Index: -0.3900
  • Cell Name: basal epithelial cell of tracheobronchial tree (CL0002329)
    Fold Change: -0.0236
    Cell Significance Index: -0.6600
  • Cell Name: dopaminergic neuron (CL0000700)
    Fold Change: -0.0244
    Cell Significance Index: -7.0300
  • Cell Name: cerebral cortex neuron (CL0010012)
    Fold Change: -0.0252
    Cell Significance Index: -0.2400
  • Cell Name: epithelial cell of stomach (CL0002178)
    Fold Change: -0.0323
    Cell Significance Index: -3.7700
  • Cell Name: odontoblast (CL0000060)
    Fold Change: -0.0367
    Cell Significance Index: -4.7100
  • Cell Name: medial ganglionic eminence derived interneuron (CL4023063)
    Fold Change: -0.0370
    Cell Significance Index: -0.5300
  • Cell Name: basal cell of urothelium (CL1000486)
    Fold Change: -0.0420
    Cell Significance Index: -5.1700
  • Cell Name: stromal cell of ovary (CL0002132)
    Fold Change: -0.0420
    Cell Significance Index: -5.7700
  • Cell Name: paneth cell of epithelium of small intestine (CL1000343)
    Fold Change: -0.0427
    Cell Significance Index: -0.9200
  • Cell Name: VIP GABAergic cortical interneuron (CL4023016)
    Fold Change: -0.0433
    Cell Significance Index: -0.8700
  • Cell Name: pancreatic acinar cell (CL0002064)
    Fold Change: -0.0436
    Cell Significance Index: -7.4400
  • Cell Name: pancreatic D cell (CL0000173)
    Fold Change: -0.0451
    Cell Significance Index: -9.5000
  • Cell Name: slow muscle cell (CL0000189)
    Fold Change: -0.0481
    Cell Significance Index: -0.7200
  • Cell Name: ON-bipolar cell (CL0000749)
    Fold Change: -0.0562
    Cell Significance Index: -0.6400
  • Cell Name: bladder urothelial cell (CL1001428)
    Fold Change: -0.0581
    Cell Significance Index: -3.0200
  • Cell Name: abnormal cell (CL0001061)
    Fold Change: -0.0606
    Cell Significance Index: -6.2000
  • Cell Name: sst GABAergic cortical interneuron (CL4023017)
    Fold Change: -0.0607
    Cell Significance Index: -1.2000
  • Cell Name: pancreatic ductal cell (CL0002079)
    Fold Change: -0.0623
    Cell Significance Index: -7.1400
  • Cell Name: intestinal epithelial cell (CL0002563)
    Fold Change: -0.0628
    Cell Significance Index: -0.6500
  • Cell Name: lactocyte (CL0002325)
    Fold Change: -0.0644
    Cell Significance Index: -8.3200
  • Cell Name: cerebellar granule cell (CL0001031)
    Fold Change: -0.0665
    Cell Significance Index: -1.1400
  • Cell Name: tonsil germinal center B cell (CL2000006)
    Fold Change: -0.0679
    Cell Significance Index: -8.0100
  • Cell Name: retinal progenitor cell (CL0002672)
    Fold Change: -0.0804
    Cell Significance Index: -4.5100
  • Cell Name: intestinal crypt stem cell of small intestine (CL0009017)
    Fold Change: -0.0829
    Cell Significance Index: -1.7700
  • Cell Name: smooth muscle cell of sphincter of pupil (CL0002243)
    Fold Change: -0.0849
    Cell Significance Index: -8.8400
  • Cell Name: chandelier pvalb GABAergic cortical interneuron (CL4023036)
    Fold Change: -0.1001
    Cell Significance Index: -2.0900
  • Cell Name: transit amplifying cell of small intestine (CL0009012)
    Fold Change: -0.1056
    Cell Significance Index: -2.1900
  • Cell Name: fast muscle cell (CL0000190)
    Fold Change: -0.1061
    Cell Significance Index: -1.3900
  • Cell Name: progenitor cell of mammary luminal epithelium (CL0009116)
    Fold Change: -0.1149
    Cell Significance Index: -8.5700
  • Cell Name: conjunctival epithelial cell (CL1000432)
    Fold Change: -0.1158
    Cell Significance Index: -1.5800
  • Cell Name: regular atrial cardiac myocyte (CL0002129)
    Fold Change: -0.1164
    Cell Significance Index: -1.5700
  • Cell Name: acinar cell of salivary gland (CL0002623)
    Fold Change: -0.1199
    Cell Significance Index: -5.5900
  • Cell Name: early pro-B cell (CL0002046)
    Fold Change: -0.1280
    Cell Significance Index: -8.2600
  • Cell Name: eukaryotic cell (CL0000255)
    Fold Change: -0.1322
    Cell Significance Index: -5.7500
  • Cell Name: lung endothelial cell (CL1001567)
    Fold Change: -0.1344
    Cell Significance Index: -7.0000
  • Cell Name: neural cell (CL0002319)
    Fold Change: -0.1380
    Cell Significance Index: -1.6100
  • Cell Name: corticothalamic-projecting glutamatergic cortical neuron (CL4023013)
    Fold Change: -0.1476
    Cell Significance Index: -4.7000
  • Cell Name: glutamatergic neuron (CL0000679)
    Fold Change: -0.1478
    Cell Significance Index: -1.6100
  • Cell Name: luminal adaptive secretory precursor cell of mammary gland (CL4033057)
    Fold Change: -0.1530
    Cell Significance Index: -7.1900
  • Cell Name: L6b glutamatergic cortical neuron (CL4023038)
    Fold Change: -0.1564
    Cell Significance Index: -5.1200
  • Cell Name: regular ventricular cardiac myocyte (CL0002131)
    Fold Change: -0.1599
    Cell Significance Index: -2.0500
  • Cell Name: preadipocyte (CL0002334)
    Fold Change: -0.1634
    Cell Significance Index: -3.1900

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this specific cell.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.

Other Information

**Key Characteristics** KCNIP2 is a small, 65-kDa protein that interacts with Kv channels, particularly Kv4.2, to regulate their activity. The protein contains a unique structure, with a cytoplasmic C-terminal domain and a short N-terminal tail. KCNIP2 has been shown to modulate Kv channel activity through direct interaction with the channel subunits, influencing their inactivation kinetics and gating properties. The protein's ability to regulate potassium ion export across the plasma membrane is critical for maintaining proper potassium homeostasis and preventing hyperkalemia. **Pathways and Functions** KCNIP2 plays a significant role in various cellular processes, including: 1. **Voltage-gated potassium channel activity**: KCNIP2 modulates Kv channel activity, influencing their inactivation kinetics and gating properties. 2. **Membrane repolarization**: KCNIP2 regulates membrane repolarization, particularly in cardiac myocytes, by modulating Kv channel activity. 3. **Cardiac conduction**: KCNIP2 is essential for maintaining proper cardiac conduction, as it regulates the activity of Kv channels in cardiac myocytes. 4. **Regulation of potassium ion transmembrane transport**: KCNIP2 influences potassium ion export across the plasma membrane, maintaining proper potassium homeostasis. 5. **Signal transduction**: KCNIP2 interacts with other signaling molecules, modulating their activity and influencing various cellular processes. **Clinical Significance** Dysregulation of KCNIP2 has been implicated in various cardiovascular disorders, including: 1. **Long QT syndrome**: KCNIP2 mutations have been associated with long QT syndrome, a condition characterized by abnormal cardiac conduction and increased risk of arrhythmias. 2. **Hypokalemia**: KCNIP2 dysfunction can lead to hypokalemia, a condition characterized by low potassium levels, which can cause muscle weakness, fatigue, and cardiac arrhythmias. 3. **Cardiac arrhythmias**: KCNIP2 modulation of Kv channel activity can influence cardiac conduction, leading to arrhythmias and cardiac dysfunction. In summary, KCNIP2 is a critical regulator of voltage-gated potassium channels, playing a significant role in maintaining proper potassium homeostasis, regulating membrane repolarization, and modulating cardiac conduction. Dysregulation of KCNIP2 has been implicated in various cardiovascular disorders, highlighting the importance of this protein in maintaining proper cardiac function.

Genular Protein ID: 3648659438

Symbol: KCIP2_HUMAN

Name: Cardiac voltage-gated potassium channel modulatory subunit

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 10676964

Title: Modulation of A-type potassium channels by a family of calcium sensors.

PubMed ID: 10676964

DOI: 10.1038/35000592

PubMed ID: 11263977

Title: Molecular cloning and expression of the novel splice variants of K(+) channel-interacting protein 2.

PubMed ID: 11263977

DOI: 10.1006/bbrc.2001.4558

PubMed ID: 11684073

Title: hKChIP2 is a functional modifier of hKv4.3 potassium channels: cloning and expression of a short hKChIP2 splice variant.

PubMed ID: 11684073

DOI: 10.1016/s0008-6363(01)00374-1

PubMed ID: 11287421

Title: Conserved Kv4 N-terminal domain critical for effects of Kv channel-interacting protein 2.2 on channel expression and gating.

PubMed ID: 11287421

DOI: 10.1074/jbc.m101320200

PubMed ID: 16112838

Title: Structure, alternative splicing, and expression of the human and mouse KCNIP gene family.

PubMed ID: 16112838

DOI: 10.1016/j.ygeno.2005.07.001

PubMed ID: 11230166

Title: Towards a catalog of human genes and proteins: sequencing and analysis of 500 novel complete protein coding human cDNAs.

PubMed ID: 11230166

DOI: 10.1101/gr.gr1547r

PubMed ID: 14702039

Title: Complete sequencing and characterization of 21,243 full-length human cDNAs.

PubMed ID: 14702039

DOI: 10.1038/ng1285

PubMed ID: 15164054

Title: The DNA sequence and comparative analysis of human chromosome 10.

PubMed ID: 15164054

DOI: 10.1038/nature02462

PubMed ID: 15489334

Title: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).

PubMed ID: 15489334

DOI: 10.1101/gr.2596504

PubMed ID: 12297301

Title: Modulation of Kv4.3 current by accessory subunits.

PubMed ID: 12297301

DOI: 10.1016/s0014-5793(02)03296-9

PubMed ID: 12829703

Title: A fundamental role for KChIPs in determining the molecular properties and trafficking of Kv4.2 potassium channels.

PubMed ID: 12829703

DOI: 10.1074/jbc.m306142200

PubMed ID: 15358149

Title: Protein-protein interactions of KChIP proteins and Kv4.2.

PubMed ID: 15358149

DOI: 10.1016/j.bbrc.2004.07.006

PubMed ID: 14623880

Title: Ito channels are octameric complexes with four subunits of each Kv4.2 and K+ channel-interacting protein 2.

PubMed ID: 14623880

DOI: 10.1074/jbc.m311332200

PubMed ID: 15356203

Title: KChIPs and Kv4 alpha subunits as integral components of A-type potassium channels in mammalian brain.

PubMed ID: 15356203

DOI: 10.1523/jneurosci.0776-04.2004

PubMed ID: 14980201

Title: Three-dimensional structure of I(to); Kv4.2-KChIP2 ion channels by electron microscopy at 21 Angstrom resolution.

PubMed ID: 14980201

DOI: 10.1016/s0896-6273(04)00050-9

PubMed ID: 34997220

Title: Structural basis for the gating modulation of Kv4.3 by auxiliary subunits.

PubMed ID: 34997220

DOI: 10.1038/s41422-021-00608-4

Sequence Information:

  • Length: 270
  • Mass: 30907
  • Checksum: B75AD02B9E273243
  • Sequence:
  • MRGQGRKESL SDSRDLDGSY DQLTGHPPGP TKKALKQRFL KLLPCCGPQA LPSVSETLAA 
    PASLRPHRPR LLDPDSVDDE FELSTVCHRP EGLEQLQEQT KFTRKELQVL YRGFKNECPS 
    GIVNEENFKQ IYSQFFPQGD SSTYATFLFN AFDTNHDGSV SFEDFVAGLS VILRGTVDDR 
    LNWAFNLYDL NKDGCITKEE MLDIMKSIYD MMGKYTYPAL REEAPREHVE SFFQKMDRNK 
    DGVVTIEEFI ESCQKDENIM RSMQLFDNVI

Genular Protein ID: 2506125835

Symbol: B3KSZ5_HUMAN

Name: N/A

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 14702039

Title: Complete sequencing and characterization of 21,243 full-length human cDNAs.

PubMed ID: 14702039

DOI: 10.1038/ng1285

Sequence Information:

  • Length: 201
  • Mass: 23021
  • Checksum: 3C7E13ACAD2507AA
  • Sequence:
  • MNLNCPPCVT GLRVWSSCRS KPNSRARSCR SCTGASRTLP SHHMSHVECP SGIVNEENFK 
    QIYSQFFPQG DSSTYATFLF NAFDTNHDGS VSFEDFVAGL SVILRGTVDD RLNWAFNLYD 
    LNKDGCITKE EMLDIMKSIY DMMGKYTYPA LREEAPREHV ESFFQKMDRN KDGVVTIEEF 
    IESCQKDENI MRSMQLFDNV I

Genular Protein ID: 1672540747

Symbol: A0A2R8Y6D7_HUMAN

Name: N/A

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 11237011

Title: Initial sequencing and analysis of the human genome.

PubMed ID: 11237011

DOI: 10.1038/35057062

PubMed ID: 15164054

Title: The DNA sequence and comparative analysis of human chromosome 10.

PubMed ID: 15164054

DOI: 10.1038/nature02462

PubMed ID: 15496913

Title: Finishing the euchromatic sequence of the human genome.

PubMed ID: 15496913

DOI: 10.1038/nature03001

Sequence Information:

  • Length: 230
  • Mass: 26625
  • Checksum: 08F4162069901EAF
  • Sequence:
  • MNLEGLEMVA VLVVLALFVK VLEQFGLFEP VSLEDSVDDE FELSTVCHRP EGLEQLQEQT 
    KFTRKELQVL YRGFKNECPS GIVNEENFKQ IYSQFFPQGD SSTYATFLFN AFDTNHDGSV 
    SFEDFVAGLS VILRGTVDDR LNWAFNLYDL NKDGCITKEE MLDIMKSIYD MMGKYTYPAL 
    REEAPREHVE SFFQKMDRNK DGVVTIEEFI ESCQKDENIM RSMQLFDNVI

Database document:

This is a preview of the gene's schema. Only a few entries are kept for 'singleCellExpressions,' 'mRNAExpressions,' and other large data arrays for visualization purposes. You can zoom in with the mouse wheel for a closer view, and the text will adjust automatically if necessary. For the full schema, download it here.