KCND3 Chromosome 1
Potassium voltage-gated channel subfamily D member 3
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What This Gene Does
Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shal-related subfamily, members of which form voltage-activated A-type potassium ion channels and are prominent in the repolarization phase of the action potential. This member includes two isoforms with different sizes, which are encoded by alternatively spliced transcript variants of this gene. [provided by RefSeq, Jul 2008]
Gene Info
Gene Group
"Potassium voltage-gated channels|BTB domain containing"
Locus Type
gene with protein product
Location
1p13.2
Ensembl
ENSG00000171385
Associated Conditions (10)
Spinocerebellar ataxia type 19/22
Brugada syndrome 9
Neurodevelopmental delay
Cardiovascular phenotype
KCND3-related disorder
Brugada syndrome
Intellectual disability
Seizure
Variant of unknown significance
Hereditary ataxia
Key Variants
RS1057521793
Conflicting classifications of pathogenicity
Spinocerebellar ataxia type 19/22, Brugada syndrome 9, Neurodevelopmental delay
Health Risk
RS1064794895
Conflicting classifications of pathogenicity
Health Risk
RS1167459243
Conflicting classifications of pathogenicity
Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype
Health Risk
RS1247179970
Conflicting classifications of pathogenicity
Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype
Health Risk
RS1294150954
Conflicting classifications of pathogenicity
Cardiovascular phenotype, Neurodevelopmental delay, Cardiovascular phenotype
Health Risk
RS139901716
Conflicting classifications of pathogenicity
Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype
Health Risk
RS1411627342
Conflicting classifications of pathogenicity
Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype
Health Risk
RS142744204
Conflicting classifications of pathogenicity
Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, KCND3-related disorder
Health Risk
RS144120746
Conflicting classifications of pathogenicity
Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Brugada syndrome 9
Health Risk
RS149008060
Conflicting classifications of pathogenicity
Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, KCND3-related disorder
Health Risk
RS149344567
Conflicting classifications of pathogenicity
Brugada syndrome 9, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22
Health Risk
RS150401343
Conflicting classifications of pathogenicity
Brugada syndrome 9, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype
Health Risk
All Variants (56)
| RSID | Category | Clinical Significance | Conditions |
|---|---|---|---|
| RS1057521793 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Brugada syndrome 9, Neurodevelopmental delay |
| RS1064794895 | Health Risk | Conflicting classifications of pathogenicity | — |
| RS1167459243 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS1247179970 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS1294150954 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Neurodevelopmental delay, Cardiovascular phenotype |
| RS139901716 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS1411627342 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS142744204 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, KCND3-related disorder |
| RS144120746 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Brugada syndrome 9 |
| RS149008060 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, KCND3-related disorder |
| RS149344567 | Health Risk | Conflicting classifications of pathogenicity | Brugada syndrome 9, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS150401343 | Health Risk | Conflicting classifications of pathogenicity | Brugada syndrome 9, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS151164490 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Brugada syndrome 9 |
| RS1664228420 | Health Risk | Conflicting classifications of pathogenicity | — |
| RS186194682 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS199637120 | Health Risk | Conflicting classifications of pathogenicity | Brugada syndrome 9, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS200212002 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS201340369 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS2101995228 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2101997230 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS35027371 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS376408039 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS545602928 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Cardiovascular phenotype |
| RS752589615 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS762528364 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS771703569 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Brugada syndrome 9 |
| RS771878661 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS774713377 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Brugada syndrome 9 |
| RS775768536 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS778053688 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Brugada syndrome 9 |
| RS778141653 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS867628133 | Health Risk | Conflicting classifications of pathogenicity | Spinocerebellar ataxia type 19/22, Cardiovascular phenotype, Spinocerebellar ataxia type 19/22 |
| RS974769346 | Health Risk | Conflicting classifications of pathogenicity | Cardiovascular phenotype, Spinocerebellar ataxia type 19/22, Cardiovascular phenotype |
| RS1057518007 | Health Risk | Likely pathogenic | — |
| RS1571939623 | Health Risk | Likely pathogenic | Intellectual disability, Seizure, Intellectual disability |
| RS1674962966 | Health Risk | Likely pathogenic | — |
| RS1674966041 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2101995530 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2101995572 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2525053501 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2525053579 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2525696069 | Health Risk | Likely pathogenic | — |
| RS2525698722 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS2525699283 | Health Risk | Likely pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS397515478 | Health Risk | Likely pathogenic | Variant of unknown significance, Spinocerebellar ataxia type 19/22, Variant of unknown significance |
| RS1057519453 | Health Risk | Pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS1571636501 | Health Risk | Pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS1571636508 | Health Risk | Pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS1571939827 | Health Risk | Pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |
| RS1571939905 | Health Risk | Pathogenic | Spinocerebellar ataxia type 19/22, Spinocerebellar ataxia type 19/22 |