Gene Gene information from NCBI Gene database.
Entrez ID 3785
Gene name Potassium voltage-gated channel subfamily Q member 2
Gene symbol KCNQ2
Synonyms (NCBI Gene)
BFNCDEE7EBNEBN1ENB1HNSPCKCNA11KV7.2
Chromosome 20
Chromosome location 20q13.33
Summary The M channel is a slowly activating and deactivating potassium channel that plays a critical role in the regulation of neuronal excitability. The M channel is formed by the association of the protein encoded by this gene and a related protein encoded by
SNPs SNP information provided by dbSNP.
253
SNP ID Visualize variation Clinical significance Consequence
rs1801545 G>A,C,T Conflicting-interpretations-of-pathogenicity, benign, likely-benign Coding sequence variant, synonymous variant, genic downstream transcript variant
rs28939683 T>C Pathogenic Missense variant, coding sequence variant, genic upstream transcript variant
rs28939684 G>A Likely-pathogenic, pathogenic Missense variant, coding sequence variant, genic upstream transcript variant
rs74315390 C>G,T Pathogenic Coding sequence variant, missense variant, genic upstream transcript variant
rs74315391 G>A Pathogenic Coding sequence variant, missense variant, genic upstream transcript variant
miRNA miRNA information provided by mirtarbase database.
4
miRTarBase ID miRNA Experiments Reference
MIRT019416 hsa-miR-148b-3p Microarray 17612493
MIRT020071 hsa-miR-375 Western blot;qRT-PCR;Microarray 20584986
MIRT030213 hsa-miR-26b-5p Microarray 19088304
MIRT1082224 hsa-miR-3922-5p CLIP-seq
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.
31
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 IDA 9836639, 27564677, 28793216
GO:0005249 Function Voltage-gated potassium channel activity IEA
GO:0005267 Function Potassium channel activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
602235 6296 ENSG00000075043
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
O43526
Protein name Potassium voltage-gated channel subfamily KQT member 2 (KQT-like 2) (Neuroblastoma-specific potassium channel subunit alpha KvLQT2) (Voltage-gated potassium channel subunit Kv7.2)
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:24277843, PubMed:28793216, PubMed:9836639). M-channel is composed of pore-forming subuni
PDB 5J03 , 6FEG , 6FEH , 7CR0 , 7CR1 , 7CR2 , 7CR3 , 7CR4 , 7CR7 , 8IJK , 8IZY , 8J00 , 8J01 , 8J02 , 8J03 , 8J04 , 8J05 , 8W4U , 8X43 , 8XO1
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00520 Ion_trans 91 324 Ion transport protein Family
PF03520 KCNQ_channel 466 651 KCNQ voltage-gated potassium channel Family
PF16642 KCNQ2_u3 665 756 Disordered
PF11956 KCNQC3-Ank-G_bd 768 868 Ankyrin-G binding motif of KCNQ2-3 Family
Tissue specificity TISSUE SPECIFICITY: In adult and fetal brain. Highly expressed in areas containing neuronal cell bodies, low in spinal cord and corpus callosum. Isoform 2 is preferentially expressed in differentiated neurons. Isoform 6 is prominent in fetal brain, undiff
Sequence
MVQKSRNGGVYPGPSGEKKLKVGFVGLDPGAPDSTRDGALLIAGSEAPKRGSILSKPRAG
GAGAGKPPKRNAFYRKLQNFLYNVLERPRGWAFIYHAYVFLLVFSCLVLSVFSTIKEYEK
SSEGALYILEIVTIVVFGVEYFVRIWAAGCCCRYRGWRGRLKFARKPFCVIDIMVLIASI
AVLAAGSQGNVFATSALRSLRFLQILRMIRMDRRGGTWKLLGSVVYAHSKELVTAWYIGF
LCLILASFLVYLAEKGENDHFDTYADALWWGLITLTTIGYGDKYPQTWNGRLLAATFTLI
GVSFFALPAGILGSGFALKVQEQH
RQKHFEKRRNPAAGLIQSAWRFYATNLSRTDLHSTW
QYYERTVTVPMYSSQTQTYGASRLIPPLNQLELLRNLKSKSGLAFRKDPPPEPSPSKGSP
CRGPLCGCCPGRSSQKVSLKDRVFSSPRGVAAKGKGSPQAQTVRRSPSADQSLEDSPSKV
PKSWSFGDRSRARQAFRIKGAASRQNSEEASLPGEDIVDDKSCPCEFVTEDLTPGLKVSI
RAVCVMRFLVSKRKFKESLRPYDVMDVIEQYSAGHLDMLSRIKSLQSRVDQIVGRGPAIT
DKDRTKGPAEAELPEDPSMMGRLGKVEKQVLSMEKKLDFLVNIYMQRMGIP
PTETEAYFG
AKEPEPAPPYHSPEDSREHVDRHGCIVKIVRSSSSTGQKNFSAPPAAPPVQCPPSTSWQP
QSHPRQGHGTSPVGDHGSLVRIPPPPAHERSLSAYG
GGNRASMEFLRQEDTPGCRPPEGN
LRDSDTSISIPSVDHEELERSFSGFSISQSKENLDALNSCYAAVAPCAKVRPYIAEGESD
TDSDLCTPCGPPPRSATGEGPFGDVGWA
GPRK
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.).
66
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
Abnormal facial shape Likely pathogenic; Pathogenic rs796052641 RCV001089685
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Absent speech Likely pathogenic; Pathogenic rs773171451 RCV001003634
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Autistic behavior Likely pathogenic; Pathogenic rs796052641 RCV001089685
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Autosomal dominant epilepsy Likely pathogenic rs2516310445 RCV003156204
★★★★☆
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
ALZHEIMER DISEASE GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autism spectrum disorder Uncertain significance; Likely benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISM SPECTRUM DISORDERS Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTOSOMAL DOMINANT NON-SYNDROMIC INTELLECTUAL DISABILITY Disgenet, Orphanet
Disgenet, Orphanet
★★☆☆☆
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
Adrenal Hyperplasia Congenital Congenital adrenal hyperplasia Pubtator 35177115 Associate
★☆☆☆☆
Found in Text Mining only
Alternating hemiplegia of childhood Alternating hemiplegia of childhood Pubtator 35177115 Associate
★☆☆☆☆
Found in Text Mining only
Amyotrophic Lateral Sclerosis Amyotrophic lateral sclerosis Pubtator 34107252 Associate
★☆☆☆☆
Found in Text Mining only
Aphasia Aphasia Pubtator 38108335 Associate
★☆☆☆☆
Found in Text Mining only
Apraxias Apraxia CLINVAR_DG
★☆☆☆☆
Found in Text Mining only
Autism Spectrum Disorder Autism Pubtator 23849776, 30392976, 34948243, 35269516 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autism Spectrum Disorders Autism Spectrum Disorder BEFREE 23849776
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autistic Disorder Autism BEFREE 31283873
★☆☆☆☆
Found in Text Mining only
Autistic Disorder Autism Pubtator 35780567, 37583270, 38108335 Associate
★☆☆☆☆
Found in Text Mining only
Autosomal Dominant Nocturnal Frontal Lobe Epilepsy Nocturnal Epilepsy BEFREE 10716662
★☆☆☆☆
Found in Text Mining only