Gene Gene information from NCBI Gene database.
Entrez ID 3745
Gene name Potassium voltage-gated channel subfamily B member 1
Gene symbol KCNB1
Synonyms (NCBI Gene)
DEE26DRK1Kv2.1
Chromosome 20
Chromosome location 20q13.13
Summary Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuro
SNPs SNP information provided by dbSNP.
1
SNP ID Visualize variation Clinical significance Consequence
rs1568658507 T>C Likely-pathogenic Coding sequence variant, missense variant
miRNA miRNA information provided by mirtarbase database.
419
miRTarBase ID miRNA Experiments Reference
MIRT707271 hsa-miR-548c-3p HITS-CLIP 21572407
MIRT707269 hsa-miR-5580-3p HITS-CLIP 21572407
MIRT707270 hsa-miR-5011-5p HITS-CLIP 21572407
MIRT707268 hsa-miR-190a-3p HITS-CLIP 21572407
MIRT707267 hsa-miR-4639-5p HITS-CLIP 21572407
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
98
GO ID Ontology Definition Evidence Reference
GO:0000149 Function SNARE binding IEA
GO:0001508 Process Action potential IBA
GO:0001508 Process Action potential IDA 19223394
GO:0001508 Process Action potential IEA
GO:0005216 Function Monoatomic ion channel activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
600397 6231 ENSG00000158445
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q14721
Protein name Potassium voltage-gated channel subfamily B member 1 (Delayed rectifier potassium channel 1) (DRK1) (h-DRK1) (Voltage-gated potassium channel subunit Kv2.1)
Protein function Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes, primarily in the brain, but also in the pancreas and cardiovascular system. Contributes to the regulation of the action potential (AP) repola
PDB 7RE5 , 7SPD
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF02214 BTB_2 33 132 BTB/POZ domain Domain
PF00520 Ion_trans 188 424 Ion transport protein Family
PF03521 Kv2channel 467 619 Kv2 voltage-gated K+ channel Family
PF03521 Kv2channel 637 685 Kv2 voltage-gated K+ channel Family
Tissue specificity TISSUE SPECIFICITY: Expressed in neocortical pyramidal cells (PubMed:24477962). Expressed in pancreatic beta cells (at protein level) (PubMed:12403834, PubMed:14988243). Expressed in brain, heart, lung, liver, colon, kidney and adrenal gland (PubMed:19074
Sequence
MPAGMTKHGSRSTSSLPPEPMEIVRSKACSRRVRLNVGGLAHEVLWRTLDRLPRTRLGKL
RDCNTHDSLLEVCDDYSLDDNEYFFDRHPGAFTSILNFYRTGRLHMMEEMCALSFSQELD
YWGIDEIYLESC
CQARYHQKKEQMNEELKREAETLREREGEEFDNTCCAEKRKKLWDLLE
KPNSSVAAKILAIISIMFIVLSTIALSLNTLPELQSLDEFGQSTDNPQLAHVEAVCIAWF
TMEYLLRFLSSPKKWKFFKGPLNAIDLLAILPYYVTIFLTESNKSVLQFQNVRRVVQIFR
IMRILRILKLARHSTGLQSLGFTLRRSYNELGLLILFLAMGIMIFSSLVFFAEKDEDDTK
FKSIPASFWWATITMTTVGYGDIYPKTLLGKIVGGLCCIAGVLVIALPIPIIVNNFSEFY
KEQK
RQEKAIKRREALERAKRNGSIVSMNMKDAFARSIEMMDIVVEKNGENMGKKDKVQD
NHLSPNKWKWTKRTLSETSSSKSFETKEQGSPEKARSSSSPQHLNVQQLEDMYNKMAKTQ
SQPILNTKESAAQSKPKEELEMESIPSPVAPLPTRTEGVIDMRSMSSIDSFISCATDFPE
ATRFSHSPLTSLPSKTGGS
TAPEVGWRGALGASGGRFVEANPSPDASQHSSFFIESPKSS
MKTNNPLKLRALKVNFMEGDPSPLL
PVLGMYHDPLRNRGSAAAAVAGLECATLLDKAVLS
PESSIYTTASAKTPPRSPEKHTAIAFNFEAGVHQYIDADTDDEGQLLYSVDSSPPKSLPG
STSPKFSTGTRSEKNHFESSPLPTSPKFLRQNCIYSTEALTGKGPSGQEKCKLENHISPD
VRVLPGGGAHGSTRDQSI
Sequence length 858
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  Reactome
    Voltage gated Potassium channels
Glucagon-like Peptide-1 (GLP1) regulates insulin secretion
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
30
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
Developmental and epileptic encephalopathy Likely pathogenic; Pathogenic rs1060499592, rs1555889127, rs1984233764, rs1984259606 RCV001249557
RCV001249561
RCV001249558
RCV001249556
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Developmental and epileptic encephalopathy, 26 Pathogenic; Likely pathogenic rs1984249721, rs2146813554, rs1984261678, rs2146813951, rs1984259606, rs2146813259, rs2146813598, rs1555889162, rs2146813954, rs2146812849, rs2146813695, rs2146813797, rs2146814335, rs587777848, rs587777849
View all (45 more)
RCV001333329
RCV001360516
RCV001366969
RCV001379870
RCV001378612
View all (61 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
developmental encephalopathy with epilepsy Pathogenic; Likely pathogenic rs1555889130, rs1555889127, rs1555889162 RCV001249560
RCV001249555
RCV001249559
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Epilepsy Pathogenic rs1555889130 RCV005625667
★★★★☆
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
ANOREXIA NERVOSA GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ATRIAL FIBRILLATION GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ATTENTION DEFICIT HYPERACTIVITY DISORDER GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISM SPECTRUM DISORDER GWAS catalog
★★☆☆☆
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
Atrial Fibrillation Atrial Fibrillation BEFREE 17016049
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Attention deficit hyperactivity disorder Attention Deficit Hyperactivity Disorder HPO_DG
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autistic Disorder Autism Pubtator 32954514 Associate
★☆☆☆☆
Found in Text Mining only
Autistic Disorder Autism HPO_DG
★☆☆☆☆
Found in Text Mining only
Blepharoptosis Ptosis HPO_DG
★☆☆☆☆
Found in Text Mining only
Brain Diseases Brain disease Pubtator 26477325, 33607466 Associate
★☆☆☆☆
Found in Text Mining only
Bruxism Bruxism Pubtator 29322350 Associate
★☆☆☆☆
Found in Text Mining only
Carcinoma Renal Cell Renal cell carcinoma Pubtator 28607108 Associate
★☆☆☆☆
Found in Text Mining only
Cerebral atrophy Cerebral Atrophy HPO_DG
★☆☆☆☆
Found in Text Mining only
Cognition Disorders Cognition disorder Pubtator 30958317 Associate
★☆☆☆☆
Found in Text Mining only