AlphaFold predicted structure
KCNQ3 · O43525

Mean pLDDT
56.7/ 100
Low
872 residues
Confidence breakdown
- Very high(≥ 90)15%
- Confident(70–90)22%
- Low(50–70)10%
- Very low(< 50)53%
AlphaFold (Jumper et al., 2021) · CC BY 4.0
potassium voltage-gated channel subfamily Q member 3
Annotations refreshed 10 hours ago.
Diagnostic Grade (Green)
Brain channelopathy
MONOALLELIC, autosomal or pseudoautosomal, NOT imprintedDDG2P
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknownEarly onset or syndromic epilepsy
MONOALLELIC, autosomal or pseudoautosomal, NOT imprintedIntellectual disability
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknownHereditary ataxia with onset in adulthood
MONOALLELIC, autosomal or pseudoautosomal, NOT imprintedAdult onset dystonia, chorea or related movement disorder
MONOALLELIC, autosomal or pseudoautosomal, NOT imprintedAdult onset neurodegenerative disorder
MONOALLELIC, autosomal or pseudoautosomal, NOT imprintedChildhood onset dystonia, chorea or related movement disorder
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted+2 more panels — install the extension to see the full list inline on any page.
Benign familial neonatal seizures
Seizure
multiple sclerosis
Lambert-Eaton myasthenic syndrome
benign neonatal seizures
myasthenia gravis
epilepsy
hereditary disease
congenital myasthenic syndrome
Congenital myasthenic syndromes
Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.
Potassium voltage-gated channel subfamily KQT member 3
Pore-forming subunit of the voltage-gated potassium (Kv) M-channel which is responsible for the M-current, a key controller of neuronal excitability (PubMed:16319223, PubMed:27564677, PubMed:28793216, PubMed:9872318). M-channel is composed of pore-forming subunits KCNQ2 and KCNQ3 assembled as heterotetramers (PubMed:14534157, PubMed:16319223, PubMed:27564677, PubMed:9872318). The native M-current has a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons as well as the responsiveness to synaptic inputs (PubMed:14534157, PubMed:16319223, PubMed:28793216). M-channel is selectively permeable in vitro to other cations besides potassium, in decreasing order of affinity K(+) > Rb(+) > Cs(+) > Na(+) (PubMed:28793216). M-channel association with SLC5A3/SMIT1 alters channel ion selectivity, increasing Na(+) and Cs(+) permeation relative to K(+) (PubMed:28793216). Suppressed by activation of M1 muscarinic acetylcholine receptors (PubMed:10713961). KCNQ3 also associates with KCNQ5 to form a functional channel in vitro and may also contribute to the M-current in brain (PubMed:11159685)
KCNQ3 · O43525

Mean pLDDT
56.7/ 100
Low
872 residues
Confidence breakdown
AlphaFold (Jumper et al., 2021) · CC BY 4.0