Gene Gene information from NCBI Gene database.
Entrez ID 3786
Gene name Potassium voltage-gated channel subfamily Q member 3
Gene symbol KCNQ3
Synonyms (NCBI Gene)
BFNC2EBN2KV7.3
Chromosome 8
Chromosome location 8q24.22
Summary This gene encodes a protein that functions in the regulation of neuronal excitability. The encoded protein forms an M-channel by associating with the products of the related KCNQ2 or KCNQ5 genes, which both encode integral membrane proteins. M-channel cur
SNPs SNP information provided by dbSNP.
32
SNP ID Visualize variation Clinical significance Consequence
rs118192247 C>T Pathogenic Missense variant, coding sequence variant, 5 prime UTR variant
rs118192248 T>A,C Uncertain-significance, pathogenic Missense variant, coding sequence variant, 5 prime UTR variant
rs118192249 A>G Pathogenic Missense variant, coding sequence variant, 5 prime UTR variant
rs118192250 C>A Pathogenic Missense variant, coding sequence variant, 5 prime UTR variant
rs118192251 G>A Likely-pathogenic, pathogenic Missense variant, coding sequence variant, 5 prime UTR variant
miRNA miRNA information provided by mirtarbase database.
291
miRTarBase ID miRNA Experiments Reference
MIRT623501 hsa-miR-6752-3p HITS-CLIP 23824327
MIRT625641 hsa-miR-4469 HITS-CLIP 23824327
MIRT625640 hsa-miR-7113-3p HITS-CLIP 23824327
MIRT625639 hsa-miR-4287 HITS-CLIP 23824327
MIRT625638 hsa-miR-4685-3p HITS-CLIP 23824327
Transcription factors Transcription factors information provided by TRRUST V2 database.
2
Transcription factor Regulation Reference
REST Repression 20926649
SP1 Activation 20926649
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
64
GO ID Ontology Definition Evidence Reference
GO:0005216 Function Monoatomic ion channel activity IEA
GO:0005244 Function Voltage-gated monoatomic ion channel activity IEA
GO:0005249 Function Voltage-gated potassium channel activity IBA
GO:0005249 Function Voltage-gated potassium channel activity IDA 11159685, 27564677, 28793216
GO:0005249 Function Voltage-gated potassium channel activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
602232 6297 ENSG00000184156
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
O43525
Protein name Potassium voltage-gated channel subfamily KQT member 3 (KQT-like 3) (Potassium channel subunit alpha KvLQT3) (Voltage-gated potassium channel subunit Kv7.3)
Protein function 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 po
PDB 5J03
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00520 Ion_trans 121 363 Ion transport protein Family
PF03520 KCNQ_channel 446 650 KCNQ voltage-gated potassium channel Family
PF11956 KCNQC3-Ank-G_bd 770 866 Ankyrin-G binding motif of KCNQ2-3 Family
Tissue specificity TISSUE SPECIFICITY: Predominantly expressed in brain.
Sequence
MGLKARRAAGAAGGGGDGGGGGGGAANPAGGDAAAAGDEERKVGLAPGDVEQVTLALGAG
ADKDGTLLLEGGGRDEGQRRTPQGIGLLAKTPLSRPVKRNNAKYRRIQTLIYDALERPRG
WALLYHALVFLIVLGCLILAVLTTFKEYETVSGDWLLLLETFAIFIFGAEFALRIWAAGC
CCRYKGWRGRLKFARKPLCMLDIFVLIASVPVVAVGNQGNVLATSLRSLRFLQILRMLRM
DRRGGTWKLLGSAICAHSKELITAWYIGFLTLILSSFLVYLVEKDVPEVDAQGEEMKEEF
ETYADALWWGLITLATIGYGDKTPKTWEGRLIAATFSLIGVSFFALPAGILGSGLALKVQ
EQH
RQKHFEKRRKPAAELIQAAWRYYATNPNRIDLVATWRFYESVVSFPFFRKEQLEAAS
SQKLGLLDRVRLSNPRGSNTKGKLFTPLNVDAIEESPSKEPKPVGLNNKERFRTAFRMKA
YAFWQSSEDAGTGDPMAEDRGYGNDFPIEDMIPTLKAAIRAVRILQFRLYKKKFKETLRP
YDVKDVIEQYSAGHLDMLSRIKYLQTRIDMIFTPGPPSTPKHKKSQKGSAFTFPSQQSPR
NEPYVARPSTSEIEDQSMMGKFVKVERQVQDMGKKLDFLVDMHMQHMERL
QVQVTEYYPT
KGTSSPAEAEKKEDNRYSDLKTIICNYSETGPPEPPYSFHQVTIDKVSPYGFFAHDPVNL
PRGGPSSGKVQATPPSSATTYVERPTVLPILTLLDSRVSCHSQADLQGPYSDRISPRQRR
SITRDSDTPLSLMSVNHEELERSPSGFSISQDRDDYVFGPNGGSSWMREKRYLAEGETDT
DTDPFTPSGSMPLSSTGDGISDSVWT
PSNKPI
Sequence length 872
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Cholinergic synapse   Voltage gated Potassium channels
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
50
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
Benign neonatal seizures Likely pathogenic; Pathogenic rs2130121106, rs118192250, rs1162306056, rs2130128566, rs1282879239, rs2130944386, rs762289015, rs796052678, rs796052676, rs2536943945, rs2536952593, rs2537398144, rs1448580874, rs2536875506, rs2536952207
View all (12 more)
RCV001378943
RCV001378393
RCV001869626
RCV001966051
RCV001867178
View all (23 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Intellectual disability Likely pathogenic; Pathogenic rs796052676 RCV001257743
RCV001257730
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
KCNQ3-related Autism and developmental disability Likely pathogenic; Pathogenic rs796052676 RCV004799197
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
KCNQ3-related developmental disability Likely pathogenic; Pathogenic rs796052676 RCV002273976
★★★★☆
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
Autism spectrum disorder Uncertain significance ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISM SPECTRUM DISORDERS Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISTIC DISORDER Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
BENIGN FAMILIAL INFANTILE EPILEPSY ClinGen
★★☆☆☆
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
Amyotrophic Lateral Sclerosis Amyotrophic lateral sclerosis Pubtator 34107252 Associate
★☆☆☆☆
Found in Text Mining only
Angelman Syndrome Angelman Syndrome CLINVAR_DG
★☆☆☆☆
Found in Text Mining only
Autism Spectrum Disorder Autism Pubtator 31177578 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autistic Disorder Autism Pubtator 31177578 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autosomal Dominant Nocturnal Frontal Lobe Epilepsy Nocturnal Epilepsy BEFREE 10716662
★☆☆☆☆
Found in Text Mining only
Benign familial infantile epilepsy Epilepsy Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Benign familial neonatal epilepsy Epilepsy Orphanet
★☆☆☆☆
Found in Text Mining only
Benign neonatal epilepsy Benign Epilepsy BEFREE 18625963, 24375629
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
Benign Rolandic Epilepsy Benign Rolandic Epilepsy BEFREE 22884718
★☆☆☆☆
Found in Text Mining only
Bipolar Disorder Bipolar Disorder BEFREE 21176025, 25041603
★★☆☆☆
Found in Text Mining + Unknown/Other Associations