ENSG00000123700


Homo sapiens

Features
Gene ID: ENSG00000123700
  
Biological name :KCNJ2
  
Synonyms : KCNJ2 / P63252 / potassium voltage-gated channel subfamily J member 2
  
Possible biological names infered from orthology :
  
Species: Homo sapiens
  
Chr. number: 17
Strand: 1
Band: q24.3
Gene start: 70168673
Gene end: 70180048
  
Corresponding Affymetrix probe sets: 206765_at (Human Genome U133 Plus 2.0 Array)   
  
Cross references: Ensembl peptide - ENSP00000441848
Ensembl peptide - ENSP00000243457
NCBI entrez gene - 3759     See in Manteia.
OMIM - 600681
RefSeq - NM_000891
RefSeq Peptide - NP_000882
swissprot - P63252
Ensembl - ENSG00000123700
  
Related genetic diseases (OMIM): 170390 - Andersen syndrome, 170390
  609622 - Short QT syndrome 3, 609622
  613980 - Atrial fibrillation, familial, 9, 613980
See expression report in BioGPS
See gene description in Wikigenes
See gene description in GeneCards
See co-cited genes in PubMed


Ortholog prediction (from Ensembl)
Ortholog nameID Species
 kcnj2aENSDARG00000019418Danio rerio
 kcnj2bENSDARG00000104389Danio rerio
 KCNJ2ENSGALG00000004376Gallus gallus
 Kcnj2ENSMUSG00000041695Mus musculus


Paralog prediction (from Ensembl)
Paralog nameIDSimilarity(%)
KCNJ12 / Q14500 / potassium voltage-gated channel subfamily J member 12ENSG0000018418571
B7U540 / KCNJ18 / potassium voltage-gated channel subfamily J member 18ENSG0000026045870
KCNJ4 / P48050 / potassium voltage-gated channel subfamily J member 4ENSG0000016813563
KCNJ14 / Q9UNX9 / potassium voltage-gated channel subfamily J member 14ENSG0000018232458
KCNJ3 / P48549 / potassium voltage-gated channel subfamily J member 3ENSG0000016298945
KCNJ9 / Q92806 / potassium voltage-gated channel subfamily J member 9ENSG0000016272845
KCNJ5 / P48544 / potassium voltage-gated channel subfamily J member 5ENSG0000012045744
KCNJ6 / P48051 / potassium voltage-gated channel subfamily J member 6ENSG0000015754244
KCNJ8 / Q15842 / potassium voltage-gated channel subfamily J member 8ENSG0000012136142
KCNJ11 / Q14654 / potassium voltage-gated channel subfamily J member 11ENSG0000018748639
KCNJ1 / P48048 / potassium voltage-gated channel subfamily J member 1ENSG0000015170437
KCNJ10 / P78508 / potassium voltage-gated channel subfamily J member 10ENSG0000017780734
KCNJ15 / Q99712 / potassium voltage-gated channel subfamily J member 15ENSG0000015755133


Protein motifs (from Interpro)
Interpro ID Name
 IPR003271  Potassium channel, inwardly rectifying, Kir2.1
 IPR013518  Potassium channel, inwardly rectifying, Kir, cytoplasmic
 IPR013673  Potassium channel, inwardly rectifying, Kir, N-terminal
 IPR014756  Immunoglobulin E-set
 IPR016449  Potassium channel, inwardly rectifying, Kir


Gene Ontology (GO)
TypeGO IDTermEv.Code
 biological_processGO:0006811 ion transport IEA
 biological_processGO:0006813 potassium ion transport IDA
 biological_processGO:0010107 potassium ion import IDA
 biological_processGO:0014861 regulation of skeletal muscle contraction via regulation of action potential IMP
 biological_processGO:0015693 magnesium ion transport IEA
 biological_processGO:0030007 cellular potassium ion homeostasis TAS
 biological_processGO:0034765 regulation of ion transmembrane transport IEA
 biological_processGO:0051289 protein homotetramerization IDA
 biological_processGO:0055119 relaxation of cardiac muscle IMP
 biological_processGO:0060075 regulation of resting membrane potential TAS
 biological_processGO:0060306 regulation of membrane repolarization IDA
 biological_processGO:0061337 cardiac conduction TAS
 biological_processGO:0071260 cellular response to mechanical stimulus IEA
 biological_processGO:0071805 potassium ion transmembrane transport IDA
 biological_processGO:0086001 cardiac muscle cell action potential IEA
 biological_processGO:0086002 cardiac muscle cell action potential involved in contraction IMP
 biological_processGO:0086004 regulation of cardiac muscle cell contraction IEA
 biological_processGO:0086011 membrane repolarization during action potential IMP
 biological_processGO:0086012 membrane depolarization during cardiac muscle cell action potential TAS
 biological_processGO:0086013 membrane repolarization during cardiac muscle cell action potential TAS
 biological_processGO:0086091 regulation of heart rate by cardiac conduction IMP
 biological_processGO:0090076 relaxation of skeletal muscle IMP
 biological_processGO:1901381 positive regulation of potassium ion transmembrane transport IEA
 cellular_componentGO:0005790 smooth endoplasmic reticulum IEA
 cellular_componentGO:0005791 rough endoplasmic reticulum IEA
 cellular_componentGO:0005794 Golgi apparatus IEA
 cellular_componentGO:0005886 plasma membrane IEA
 cellular_componentGO:0005887 integral component of plasma membrane TAS
 cellular_componentGO:0008076 voltage-gated potassium channel complex IDA
 cellular_componentGO:0014704 intercalated disc IEA
 cellular_componentGO:0016020 membrane IEA
 cellular_componentGO:0016021 integral component of membrane IEA
 cellular_componentGO:0030315 T-tubule IEA
 cellular_componentGO:0030425 dendrite IEA
 cellular_componentGO:0031224 intrinsic component of membrane IDA
 cellular_componentGO:0043025 neuronal cell body IEA
 cellular_componentGO:0043197 dendritic spine IEA
 molecular_functionGO:0005242 inward rectifier potassium channel activity IDA
 molecular_functionGO:0005244 voltage-gated ion channel activity IEA
 molecular_functionGO:0005546 phosphatidylinositol-4,5-bisphosphate binding IDA
 molecular_functionGO:0015467 G-protein activated inward rectifier potassium channel activity TAS
 molecular_functionGO:0042802 identical protein binding IEA
 molecular_functionGO:0086008 voltage-gated potassium channel activity involved in cardiac muscle cell action potential repolarization IMP


Pathways (from Reactome)
Pathway description
Activation of G protein gated Potassium channels
Classical Kir channels
Phase 4 - resting membrane potential
Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits


Phenotype (from MGI, Zfin or HPO)
IDPhenotypeDefinition Genetic BG
 HP:0000006 Autosomal dominant inheritance "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in heterozygotes. In the context of medical genetics, an autosomal dominant disorder is caused when a single copy of the mutant allele is present. Males and females are affected equally, and can both transmit the disorder with a risk of 50% for each child of inheriting the mutant allele." [HPO:curators]
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 HP:0000175 Cleft palate "Cleft palate is a developmental defect of the `palate` (FMA:54549) resulting from a failure of fusion of the palatine processes." [HPO:curators]
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 HP:0000218 High palate "Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective)." [pmid:19125428]
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 HP:0000219 Thin upper lip 
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 HP:0000252 Microcephaly "Microcephaly is a neurodevelopmental disorder in which the circumference of the head is more than two standard deviations smaller than the age- and gender-dependent norm." [HPO:curators]
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 HP:0000272 Malar hypoplasia "Underdeveloped midface region." [HPO:curators]
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 HP:0000316 Hypertelorism 
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 HP:0000324 Facial asymmetry 
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 HP:0000325 Triangular facies 
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 HP:0000327 Hypoplasia of the maxilla "Underdevelopment of the `Maxilla` (FMA:9711)." [HPO:probinson]
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 HP:0000337 Broad forehead "Abnormally large side-to-side distance of the forehead." [HPO:curators]
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 HP:0000369 Low-set ears "Low-set ears are defined to be set below an arbitrary line drawn between the lateral canthus of the eye and the occipital protruberance." [HPO:curators]
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 HP:0000414 Bulbous nose 
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 HP:0000581 Blepharophimosis "Reduced width of the palpebral fissures." [HPO:sdoelken]
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 HP:0000677 Oligodontia "The condition of missing over 6 teeth (Missing up to 6 teeth is referred to a hypodontia)." [HPO:curators]
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 HP:0000696 Delayed eruption of secondary teeth 
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 HP:0000716 Depression "A condition characterized by pervasive dysphoric mood, loss of interests, and inability to experience pleasure." [HPO:curators]
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 HP:0001156 Brachydactyly 
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 HP:0001279 Syncope "Syncope refers to a generalized weakness of muscles with loss of postural tone, inability to stand upright, and loss of consciousness. Once the patient is in a horizontal position, blood flow to the brain is no longer hindered by gravitation and consciousness is regained. Unconsciousness usually lasts for seconds to minutes. Headache and drowsiness (which usually follow seizures) do not follow a syncopal attack. Syncope results from a sudden impairment of brain metabolism usually due to a reduction in cerebral blood flow. This term refers to an abnormally increased disposition to syncope." [HPO:curators]
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 HP:0001328 Learning disability 
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 HP:0001388 Joint laxity 
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 HP:0001507 Growth abnormality 
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 HP:0001645 Sudden cardiac death 
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 HP:0001649 Tachycardia "A rapid heartrate that exceeds the range of the normal resting heartrate for age." [HPO:curators]
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 HP:0001657 Prolonged QT interval on EKG 
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 HP:0001662 Bradycardia 
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 HP:0001663 Ventricular fibrillation 
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 HP:0001678 Atrioventricular block 
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 HP:0001770 Toe syndactyly "Webbing or fusion of the toes, involving soft parts only or including bone structure. Bony fusions are revered to as "bony" Syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the toes in a proximo-distal axis are refered to as "Symphalangism"." [HPO:curators]
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 HP:0001773 Short, broad feet "Abnormally short and wide feet." [HPO:curators]
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 HP:0001864 Fifth toe clinodactyly 
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 HP:0001962 Palpitations 
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 HP:0002650 Scoliosis "The presence of an abnormal lateral curvature of the spine." [HPO:curators]
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 HP:0002750 Delayed skeletal maturation "A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body." [HPO:curators]
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 HP:0003100 Thin long bones 
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 HP:0003691 Scapular winging 
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 HP:0003778 Short mandibular rami 
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 HP:0003779 Antegonial notching of mandible 
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 HP:0004209 Clinodactyly of the 5th finger "Clinodactyly refers to a bending or curvature of the `fifth finger` (FMA:24949) in the radial direction (i.e., towards the 4th finger)." [HPO:curators]
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 HP:0004279 Hypoplastic hand 
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 HP:0004467 Preauricular sinus "The preauricular sinus is a benign congenital lesion of the preauricular soft tissue consisting of a blind-ending narrow tube or pit. It is also known as preauricular pit, preauricular fistula, preauricular tract and preauricular cyst. It can be asymptomatic or present as an infected and discharging sinus. It presents as a small pit adjacent to the external ear usually located at the anterior margin of the ascending limb of the helix." [HPO:curators]
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 HP:0004757 paroxysmal atrial fibrillation 
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 HP:0005110 Atrial fibrillation 
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 HP:0005147 Bidirectional ventricular ectopy 
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 HP:0005478 Prominent frontal sinuses 
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 HP:0006297 Hypoplastic dental enamel 
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 HP:0006335 Delayed loss of deciduous teeth 
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 HP:0008153 Periodic hypokalemic paresis 
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 HP:0009803 Hypoplastic/small phalanges of the hand 
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 HP:0010049 Hypoplastic/short metacarpal bones 
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 HP:0010743 Hypoplasia of the metatarsal bones 
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 HP:0012232 Shortened QT interval "Decreased time between the start of the Q wave and the end of the T wave as measured by the electrocardiogram (EKG)." [HPO:probinson]
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 HP:0012745 Short palpebral fissure "Distance between the medial and lateral canthi is more than 2 SD below the mean for age (objective); or, apparently reduced length of the palpebral fissures." [pmid:19125427]
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 HP:0025072 Prominent U wave "Increased amplitude of the U wave, defined as an amplitude grerater than 1-2mm or 25 percent of the height of the T wave." []
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 HP:0200055 Small hands 
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Interacting proteins (from Reactome)
Interactor ID Name Interaction type
 ENSG00000172354 GNB2 / P62879 / G protein subunit beta 2  / complex
 ENSG00000153822 KCNJ16 / Q9NPI9 / potassium voltage-gated channel subfamily J member 16  / complex
 ENSG00000111664 GNB3 / P16520 / G protein subunit beta 3  / complex
 ENSG00000168135 KCNJ4 / P48050 / potassium voltage-gated channel subfamily J member 4  / complex
 ENSG00000078369 GNB1 / P62873 / G protein subunit beta 1  / complex
 ENSG00000136928 GABBR2 / O75899 / gamma-aminobutyric acid type B receptor subunit 2  / complex
 ENSG00000182324 KCNJ14 / Q9UNX9 / potassium voltage-gated channel subfamily J member 14  / complex
 ENSG00000184185 KCNJ12 / Q14500 / potassium voltage-gated channel subfamily J member 12  / complex
 ENSG00000177807 KCNJ10 / P78508 / potassium voltage-gated channel subfamily J member 10  / complex
 ENSG00000123700 KCNJ2 / P63252 / potassium voltage-gated channel subfamily J member 2  / complex
 ENSG00000204681 GABBR1 / Q9UBS5 / gamma-aminobutyric acid type B receptor subunit 1  / complex






 

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