1. Gene
  2. KCNJ3 - potassium inwardly rectifying channel subfamily J member 3 Gene

KCNJ3 - potassium inwardly rectifying channel subfamily J member 3 Gene

中文名称:钾内向整流通道亚家族 J 成员 3

种属: Homo sapiens

同用名: KGA; GIRK1; KIR3.1

基因 ID: 3760 | 基因类型: protein coding

关于 KCNJ3

Cytogenetic location: 2q24.1 Genomic coordinates (GRCh38): 2:154,698,695-154,858,354 (from NCBI)

This gene has 4 transcripts (splice variants), 222 orthologues and 15 paralogues. Biased expression in brain (RPKM 10.3), heart (RPKM 5.7) and 8 other tissues.

功能概要

钾通道存在于大多数哺乳动物细胞中,它们参与广泛的生理反应。该基因编码的蛋白是一种完整的膜蛋白和内向整流型钾通道。编码的蛋白质更倾向于让钾流入细胞而不是流出细胞,它受 G 蛋白控制,在调节心跳方面起着重要作用。它与其他三个 G 蛋白激活的钾通道结合形成异多聚体成孔复合物,该复合物还与大脑中的神经递质受体偶联,通道激活可以通过超极化质膜来抑制动作电位放电。这些多聚体 G 蛋白门控内向整流钾 (GIRK) 通道可能在癫痫、成瘾、唐氏综合症、共济失调和帕金森病的病理生理学中发挥作用。可变剪接导致编码不同蛋白质的多个转录变体。[RefSeq 提供,2012 年 5 月]

Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type Potassium Channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, is controlled by G-proteins and plays an important role in regulating heartbeat. It associates with three Other G-protein-activated potassium channels to form a heteromultimeric pore-forming complex that also couples to neurotransmitter receptors in the brain and whereby channel activation can inhibit action potential firing by hyperpolarizing the plasma membrane. These multimeric G-protein-gated inwardly-rectifying potassium (GIRK) channels may play a role in the pathophysiology of epilepsy, addiction, Down's syndrome, ataxia, and Parkinson's disease. Alternative splicing results in multiple transcript variants encoding distinct proteins. [provided by RefSeq, May 2012]

KCNJ3 基因产物(4)

mRNA Protein Name
NM_001260508.2 NP_001247437.1 G protein-activated inward rectifier potassium channel 1 isoform 2
NM_001260509.2 NP_001247438.1 G protein-activated inward rectifier potassium channel 1 isoform 3
NM_001260510.2 NP_001247439.1 G protein-activated inward rectifier potassium channel 1 isoform 4
NM_002239.4 NP_002230.1 G protein-activated inward rectifier potassium channel 1 isoform 1
基因本体论
  • 分子功能
  • 生物过程
  • 细胞组分
分子功能 GO 注释 逻辑证据 参考文献 来源
contributes to inward rectifier potassium channel activity IDA
IDA: 通过直接分析推断
12297500 GOA
enables protein binding IPI
IPI: 通过物理相互作用推断
12297500 GOA
生物过程 GO 注释 逻辑证据 参考文献 来源
involved in potassium ion import across plasma membrane IDA
IDA: 通过直接分析推断
20560207 GOA
细胞组分 GO 注释 逻辑证据 参考文献 来源
part of voltage-gated potassium channel complex IDA
IDA: 通过直接分析推断
20560207 GOA
EXP:通过实验结果推断 IDA:通过直接分析推断 IPI:通过物理相互作用推断 IMP:通过突变表型推断 IGI:通过遗传相互作用推断 IEP:通过表达模式推断

KCNJ3 蛋白结构

IRK

IRK: Inward rectifier potassium channel (47 - 367)

  • 0
  • 100
  • 200
  • 300
  • 400
  • 501 a.a.
蛋白主名 其他名称

G protein-activated inward rectifier potassium channel 1

GIRK-1

关联疾病

疾病名称 别名
Epilepsy

Epilepsy Syndrome

Epileptic Syndrome

Epilepsies

Symptomatic Epilepsies

Post Traumatic Epilepsy

Traumatic Epilepsy

Traumatic Epileptic

Epilepsy Due To Hippocampal Sclerosis

Epilepsy With Ammon'S Horn Sclerosis

Epilepsy Due To Cortical Dysplasia

Epilepsy Due To Neuronal Migration Disorders

Long Qt Syndrome

Romano-Ward Syndrome

Long Q-T Syndrome

Lqt

Qt Syndrome, Long

Congenital Long Qt Syndrome

Familial Long Qt Syndrome

Myasthenic Syndrome, Congenital, 8

Congenital Myasthenic Syndrome 8

CMS8

Myasthenic Syndrome, Congenital, With Pre- And Postsynaptic Defects

Cmsppd

Myasthenic Syndrome, Congenital, 8, With Pre- And Postsynaptic Defects

Congenital Myasthenic Syndrome Due To Agrin Deficiency

Myasthenic Syndrome, Congenital, Due To Agrin Deficiency

Congenital Myasthenic Syndrome 8 With Pre- And Postsynaptic Defects

Myasthenic Syndrome, Congenital, Type 8, With Pre- And Postsynaptic Defects

Night Blindness, Congenital Stationary, Type 1h

Congenital Stationary Night Blindness 1h

CSNB1H

Congenital Stationary Night Blindness Type 1h

Night Blindness, Congenital Stationary, 1h

Vitreoretinal Degeneration, Snowflake Type

Snowflake Vitreoretinal Degeneration

SVD

Snowflake Degeneration In Hereditary Vitreoretinal Degeneration

Seizures, Sensorineural Deafness, Ataxia, Mental Retardation, And Electrolyte Imbalance

Sesame Syndrome

East Syndrome

SESAMES

Epilepsy, Ataxia, Sensorineural Deafness And Tubulopathy

Seizures, Sensorineural Deafness, Ataxia, Mental Retardation And Electrolyte Imbalance

Epilepsy-Ataxia-Sensorineural Deafness-Tubulopathy Syndrome

Seizures-Sensorineural Deafness-Ataxia-Intellectual Disability-Electrolyte Imbalance Syndrome

Epilepsy, Ataxia, Sensorineural Deafness, And Tubulopathy

Seizures - Sensorineural Deafness - Ataxia - Intellectual Disability - Electrolyte Imbalance

Epilepsy-Ataxia-Sensorineural Hearing Loss-Tubulopathy Syndrome

Seizures-Sensorineural Hearing Loss-Ataxia-Intellectual Disability-Electrolyte Imbalance Syndrome

Seizures, Sensorineural Deafness, Ataxia, Intellectual Disability, And Electrolyte Imbalance

Epilepsy Ataxia Sensorineural Deafness And Tubulopathy

Seizures, Sensorineural Deafness, Ataxia, Intellectual Disability, And Electrolyte Imbalance Syndrome

Andersen Cardiodysrhythmic Periodic Paralysis

Andersen Syndrome

Andersen-Tawil Syndrome

LQT7

Long Qt Syndrome 7

Ats

Periodic Paralysis, Potassium-Sensitive Cardiodysrhythmic Type

Long Qt Syndrome Type 7

Andersen Tawil Syndrome

Potassium-Sensitive Cardiodysrhythmic Type

Lqts Type 7

Long Qt Syndrome-7

Familial Atrial Fibrillation

Atrial Fibrillation, Familial

Atfb

Atrial Fibrillation Autosomal Dominant

Autosomal Dominant Atrial Fibrillation

Auricular Fibrillation

Atrial Fibrillation

Atrial Fibrillation, Familial, 1

Heart Conduction Disease

Conduction Disorder Of The Heart

Heart Rhythm Disease

Epilepsy, Idiopathic Generalized

Idiopathic Generalized Epilepsy

Generalised Epilepsy

Epilepsy, Generalized

EIG

Ige

Epilepsy, Idiopathic Generalized, Susceptibility To, 1

Epilepsy, Idiopathic Generalized 1

Epilepsy, Idiopathic Generalized, Susceptibility To

Epilepsy, Idiopathic, Generalized

Epilepsy, Idiopathic, Generalized, Susceptibility To, Type 1

Long Qt Syndrome 1

Romano-Ward Syndrome

LQT1

Ward-Romano Syndrome

Rws

Ventricular Fibrillation With Prolonged Qt Interval

Wrs

Long Qt Syndrome 1, Acquired, Susceptibility To

Long Qt Syndrome 1, Acquired

Romano-Ward Long Qt Syndrome

Long Qt Syndrome Type 1

Long Qt Syndrome-1

Acquired Susceptibility To Long Qt Syndrome 1

Qt Syndrome, Long, Type 1

Brugada Syndrome

Sudden Unexpected Nocturnal Death Syndrome

Sudden Unexplained Nocturnal Death Syndrome

Bangungut

Brugada Type Idiopathic Ventricular Fibrillation

Pokkuri Death Syndrome

Sunds

Idiopathic Ventricular Fibrillation, Brugada Type

Sudden Unexplained Death

Dream Disease

Right Bundle Branch Block, St Segment Elevation, And Sudden Death Syndrome

Sudden Unexplained Death Syndrome

Suds

Sunds - [Sudden Unexplained Nocturnal Death Syndrome]

疾病名称 别名
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

直系同源

种属 基因名 来源 基因 ID
Rattus norvegicus KCNJ3 RGD RGD:2958
Bos taurus KCNJ3 VGNC VGNC:30461
Macaca mulatta KCNJ3 VGNC VGNC:73989
Mus musculus KCNJ3 MGD MGI:104742
Felis catus KCNJ3 VGNC VGNC:67915
Canis familiaris KCNJ3 VGNC VGNC:42264