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 categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
1540
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
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
RCV002007389
RCV002000206
RCV001852468
RCV001042557
RCV002838210
RCV003044809
RCV003586711
RCV003586869
RCV003587134
RCV003587818
RCV003750126
RCV000462450
RCV001059339
RCV000647885
RCV000685942
RCV000813464
RCV000818357
RCV001043722
RCV001041672
RCV001056634
RCV001044522
RCV001058007
RCV001203500
Intellectual disability Likely pathogenic; Pathogenic rs796052676 RCV001257743
RCV001257730
KCNQ3-related Autism and developmental disability Likely pathogenic; Pathogenic rs796052676 RCV004799197
KCNQ3-related developmental disability Likely pathogenic; Pathogenic rs796052676 RCV002273976
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Autism spectrum disorder Uncertain significance rs2536875499 RCV003128070
Benign Neonatal Epilepsy Benign; Likely benign; Conflicting classifications of pathogenicity; Uncertain significance rs114095081, rs554833870, rs145204452, rs886062660, rs2436127, rs2469630, rs763946605, rs746747886, rs886062666, rs112550767, rs16904601, rs886062671, rs61190986, rs886062674, rs763323782
View all (72 more)
RCV000319682
RCV000378150
RCV000402698
RCV000282719
RCV000352720
RCV000354805
RCV000404866
RCV000277922
RCV000322050
RCV000389474
RCV000309221
RCV000311151
RCV000313726
RCV000320529
RCV000365103
RCV000280663
RCV000263407
RCV000268621
RCV000383690
RCV000295405
RCV000301583
RCV000318804
RCV000344181
RCV000315403
RCV000406790
RCV000279416
RCV000298526
RCV000404383
RCV000301653
RCV000291742
RCV000298041
RCV000328695
RCV000309873
RCV000269907
RCV000276608
RCV000282836
RCV000343865
RCV000265508
RCV000405404
RCV000382476
RCV000300904
RCV000377033
RCV000367865
RCV000288756
RCV000301153
RCV000405900
RCV000393226
RCV000323462
RCV000313012
RCV000290604
RCV000264257
RCV000275129
RCV000323026
RCV000406854
RCV000282389
RCV000368277
RCV000403127
RCV000402789
RCV000301736
RCV000275605
RCV000308231
RCV000339629
RCV000340577
RCV000405603
RCV000344098
RCV000282445
RCV000371607
RCV000403800
RCV000351841
RCV000262494
RCV000358650
RCV000293171
RCV000402489
RCV000364033
RCV000269051
RCV000275950
RCV000379809
RCV000349204
RCV000371620
RCV000406886
RCV000407010
RCV000406582
RCV000345838
RCV000345087
RCV000364676
RCV000262888
RCV000371203
RCV000307788
RCV000310875
RCV000377454
RCV000285110
RCV000326256
RCV000384756
RCV000327599
Cervical cancer Benign; Conflicting classifications of pathogenicity rs10095295, rs377479583 RCV005899308
RCV005898034
Cholangiocarcinoma Benign rs28606540 RCV005899315
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Adenocarcinoma Associate 37648039
Amyotrophic Lateral Sclerosis Associate 34107252
Autism Spectrum Disorder Associate 31177578
Autistic Disorder Associate 31177578
Bipolar Disorder Associate 21176025
Brain Diseases Associate 29852413, 31177578, 33784504
Carpal Tunnel Syndrome Associate 9579905
Convulsions benign familial neonatal dominant form Associate 25052858, 25524373, 29852413, 33784504
Developmental Disabilities Associate 29852413, 31177578, 31238879, 33004838, 33799276
Diabetic Neuropathies Associate 36430572