KCNQ4 - potassium voltage-gated channel subfamily Q member 4 Gene
Also Known as DFNA2; KV7.4; DFNA2A
Species: Homo sapiens
About KCNQ4
This gene has 4 transcripts (splice variants), 199 orthologues, 31 paralogues and is associated with 2 phenotypes. Ubiquitous expression in endometrium (RPKM 1.8), prostate (RPKM 1.3) and 24 other tissues.
Summary
The protein encoded by this gene forms a Potassium Channel that is thought to play a critical role in the regulation of neuronal excitability, particularly in sensory cells of the cochlea. The current generated by this channel is inhibited by M1 muscarinic acetylcholine receptors and activated by retigabine, a novel anti-convulsant drug. The encoded protein can form a homomultimeric Potassium Channel or possibly a heteromultimeric channel in association with the protein encoded by the KCNQ3 gene. Defects in this gene are a cause of nonsyndromic sensorineural deafness type 2 (DFNA2), an autosomal dominant form of progressive hearing loss. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
KCNQ4 Products (2)
| mRNA | Protein | Name |
|---|---|---|
| NM_004700.4 | NP_004691.2 | potassium voltage-gated channel subfamily KQT member 4 isoform a |
| NM_172163.3 | NP_751895.1 | potassium voltage-gated channel subfamily KQT member 4 isoform b |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
19687231 | GOA |
| enables voltage-gated potassium channel activity |
IDA
IDA: Inferred from direct assay
|
11245603 | GOA |
KCNQ4 Protein Structure
Ion_trans: Ion transport protein (134 - 317)
KCNQ_channel: KCNQ voltage-gated potassium channel (463 - 652)
- 0
- 200
- 400
- 600
- 695 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
potassium voltage-gated channel subfamily KQT member 4 |
|
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Deafness, Autosomal Dominant 2a |
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| Dfna2 Nonsyndromic Hearing Loss |
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| Non-Syndromic Genetic Deafness |
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| Nonsyndromic Hearing Loss |
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| Rare Genetic Deafness |
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| Autosomal Dominant Non-Syndromic Sensorineural Deafness Type Dfna |
|
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| Sensorineural Hearing Loss |
|
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| Deafness, Autosomal Dominant 18 |
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| Deafness, Autosomal Dominant 15 |
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| Deafness, Autosomal Dominant 9 |
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| Benign Neonatal Seizures |
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| Deafness, Autosomal Dominant 25 |
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| Deafness, Autosomal Dominant 28 |
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| Deafness, Autosomal Recessive 14 |
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| Deafness, Autosomal Dominant 2b |
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| Deafness, Autosomal Dominant 13 |
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| Deafness, Autosomal Dominant 44 |
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| Deafness, Autosomal Dominant 41 |
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| Superior Semicircular Canal Dehiscence |
|
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| Deafness, Autosomal Dominant 16 |
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| Deafness, Autosomal Recessive 4, With Enlarged Vestibular Aqueduct |
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| Deafness, Autosomal Dominant 10 |
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| Waardenburg Syndrome, Type 4c |
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| Auditory System Disease |
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| Deafness, Autosomal Dominant 22 |
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| Deafness, Autosomal Dominant 64 |
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| Benign Familial Neonatal Epilepsy |
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| Deafness, Autosomal Dominant 4a |
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| Autosomal Dominant Nonsyndromic Deafness |
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| Peripheral Vertigo |
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| Branchiootorenal Syndrome 1 |
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| Vestibular Disease |
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| Waardenburg Syndrome, Type 1 |
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| Inner Ear Disease |
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| Meniere Disease |
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| Deafness, Autosomal Recessive 1a |
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| Neonatal Period Electroclinical Syndrome |
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| Long Qt Syndrome 1 |
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| Autosomal Recessive Nonsyndromic Deafness |
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| Long Qt Syndrome |
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| Usher Syndrome |
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| Usher Syndrome, Type I |
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| Familial Atrial Fibrillation |
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| Benign Epilepsy With Centrotemporal Spikes |
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Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Bos taurus | KCNQ4 | VGNC | VGNC:30489 |
| Felis catus | KCNQ4 | VGNC | VGNC:67931 |
| Macaca mulatta | KCNQ4 | VGNC | VGNC:74007 |
| Mus musculus | KCNQ4 | MGD | MGI:1926803 |
| Canis familiaris | KCNQ4 | VGNC | VGNC:42290 |
| Rattus norvegicus | KCNQ4 | RGD | RGD:61799 |
| Others | KCNQ4 | NCBI |