Gene Gene information from NCBI Gene database.
Entrez ID 3752
Gene name Potassium voltage-gated channel subfamily D member 3
Gene symbol KCND3
Synonyms (NCBI Gene)
BRGDA9KCND3LKCND3SKSHIVBKV4.3SCA19SCA22
Chromosome 1
Chromosome location 1p13.2
Summary 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, neuro
SNPs SNP information provided by dbSNP.
19
SNP ID Visualize variation Clinical significance Consequence
rs149344567 C>T Pathogenic, uncertain-significance Genic downstream transcript variant, 3 prime UTR variant, missense variant, coding sequence variant
rs150401343 G>A Likely-pathogenic, uncertain-significance Missense variant, genic downstream transcript variant, coding sequence variant
rs200532657 C>T Benign, conflicting-interpretations-of-pathogenicity Genic downstream transcript variant, missense variant, coding sequence variant
rs201340369 G>A,T Uncertain-significance, conflicting-interpretations-of-pathogenicity Missense variant, coding sequence variant
rs369361457 C>A,T Conflicting-interpretations-of-pathogenicity Coding sequence variant, synonymous variant
miRNA miRNA information provided by mirtarbase database.
103
miRTarBase ID miRNA Experiments Reference
MIRT021549 hsa-miR-142-3p Microarray 17612493
MIRT051143 hsa-miR-16-5p CLASH 23622248
MIRT035756 hsa-miR-449c-5p CLASH 23622248
MIRT702548 hsa-miR-106a-5p HITS-CLIP 23313552
MIRT702547 hsa-miR-106b-5p HITS-CLIP 23313552
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
54
GO ID Ontology Definition Evidence Reference
GO:0001508 Process Action potential IBA
GO:0005216 Function Monoatomic ion channel activity IEA
GO:0005249 Function Voltage-gated potassium channel activity IEA
GO:0005250 Function A-type (transient outward) potassium channel activity IBA
GO:0005250 Function A-type (transient outward) potassium channel activity IDA 21349352
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
605411 6239 ENSG00000171385
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q9UK17
Protein name A-type voltage-gated potassium channel KCND3 (Potassium voltage-gated channel subfamily D member 3) (Voltage-gated potassium channel subunit Kv4.3)
Protein function Pore-forming (alpha) subunit of voltage-gated A-type potassium channels that mediates transmembrane potassium transport in excitable membranes, in brain and heart (PubMed:10200233, PubMed:17187064, PubMed:21349352, PubMed:22457051, PubMed:232808
PDB 1S1G , 2NZ0 , 7W3Y , 7W6N , 7W6S , 7W6T
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF11601 Shal-type 3 31 Shal-type voltage-gated potassium channels, N-terminal Domain
PF02214 BTB_2 42 131 BTB/POZ domain Domain
PF00520 Ion_trans 182 414 Ion transport protein Family
PF11879 DUF3399 442 563 Domain of unknown function (DUF3399) Family
Tissue specificity TISSUE SPECIFICITY: Highly expressed in heart and brain, in particular in cortex, cerebellum, amygdala and caudate nucleus (PubMed:10200233, PubMed:10729221, PubMed:9843794). Detected at lower levels in liver, skeletal muscle, kidney and pancreas (PubMed:
Sequence
Sequence length 655
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Spinocerebellar ataxia   Voltage gated Potassium channels
Phase 1 - inactivation of fast Na+ channels
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
29
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Brugada syndrome 9 Likely pathogenic; Pathogenic rs786205867 RCV000172844
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Cardiovascular phenotype Likely pathogenic; Pathogenic rs1664632655 RCV004629532
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Hereditary ataxia Likely pathogenic; Pathogenic rs1664632655 RCV005626384
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Intellectual disability Likely pathogenic rs1571939623 RCV001007561
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
ATRIAL FIBRILLATION CTD, Disgenet, GWAS catalog
CTD, Disgenet, GWAS catalog
CTD, Disgenet, GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BREAST CARCINOMA GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Brugada syndrome Conflicting classifications of pathogenicity; Uncertain significance ClinVar
Disgenet
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
BRUGADA SYNDROME 1 ClinGen, Disgenet
ClinGen, Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Amelogenesis imperfecta nephrocalcinosis Amelogenesis Imperfecta BEFREE 31173922
★☆☆☆☆
Found in Text Mining only
Apraxias Apraxia Pubtator 26189493 Associate
★☆☆☆☆
Found in Text Mining only
Arrhythmias Cardiac Cardiac arrhythmias Pubtator 18192214, 21349352, 29259226, 37446101 Associate
★☆☆☆☆
Found in Text Mining only
Asthma Asthma Pubtator 28139761 Associate
★☆☆☆☆
Found in Text Mining only
Asthma, Occupational Asthma BEFREE 28139761
★☆☆☆☆
Found in Text Mining only
Ataxia Ataxia Pubtator 25854634, 30776697, 37446101 Associate
★☆☆☆☆
Found in Text Mining only
Ataxia, Spinocerebellar Spinocerebellar Ataxia BEFREE 15895560, 23280837, 26189493, 26374734, 29527639, 31293010
★☆☆☆☆
Found in Text Mining only
Atherosclerosis Atherosclerosis Pubtator 37372394 Associate
★☆☆☆☆
Found in Text Mining only
Atrial Fibrillation Atrial fibrillation Pubtator 11693772 Inhibit
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Atrial Fibrillation Atrial Fibrillation BEFREE 28416822
★★☆☆☆
Found in Text Mining + Unknown/Other Associations