Gene Gene information from NCBI Gene database.
Entrez ID 3757
Gene name Potassium voltage-gated channel subfamily H member 2
Gene symbol KCNH2
Synonyms (NCBI Gene)
ERG-1ERG1H-ERGHERGHERG1Kv11.1LQT2SQT1
Chromosome 7
Chromosome location 7q36.1
Summary This gene encodes a voltage-activated potassium channel belonging to the eag family. It shares sequence similarity with the Drosophila ether-a-go-go (eag) gene. Mutations in this gene can cause long QT syndrome type 2 (LQT2). Transcript variants encoding
SNPs SNP information provided by dbSNP.
401
SNP ID Visualize variation Clinical significance Consequence
rs1137617 A>C,G,T Pathogenic, benign, likely-benign Coding sequence variant, stop gained, synonymous variant
rs9333649 C>A,G,T Not-provided, pathogenic Coding sequence variant, missense variant
rs12720441 G>A,C Likely-pathogenic, not-provided, risk-factor Missense variant, coding sequence variant
rs28928904 A>C,G,T Pathogenic, not-provided Missense variant, coding sequence variant
rs28928905 C>G,T Pathogenic, not-provided Missense variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
23
miRTarBase ID miRNA Experiments Reference
MIRT004831 hsa-miR-133a-3p Luciferase reporter assayqRT-PCRWestern blot 17344217
MIRT004831 hsa-miR-133a-3p Luciferase reporter assayqRT-PCRWestern blot 17344217
MIRT004832 hsa-miR-133b Luciferase reporter assayqRT-PCRWestern blot 17344217
MIRT016707 hsa-miR-335-5p Microarray 18185580
MIRT025630 hsa-miR-7-5p Microarray 19073608
Transcription factors Transcription factors information provided by TRRUST V2 database.
1
Transcription factor Regulation Reference
SP1 Unknown 17311278
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:0000976 Function Transcription cis-regulatory region binding IDA 31146003
GO:0003064 Process Regulation of heart rate by hormone TAS 11953308
GO:0005216 Function Monoatomic ion channel activity IEA
GO:0005242 Function Inward rectifier potassium channel activity IBA
GO:0005242 Function Inward rectifier potassium channel activity IDA 9765245, 18559421
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
152427 6251 ENSG00000055118
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q12809
Protein name Voltage-gated inwardly rectifying potassium channel KCNH2 (Eag homolog) (Ether-a-go-go-related gene potassium channel 1) (ERG-1) (Eag-related protein 1) (Ether-a-go-go-related protein 1) (H-ERG) (hERG-1) (hERG1) (Potassium voltage-gated channel subfamily
Protein function Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel (PubMed:10219239, PubMed:10753933, PubMed:10790218, PubMed:10837251, PubMed:11997281, PubMed:12063277, PubMed:18559421, PubMed:22314138, PubMed:22359612, PubMed:
PDB 1BYW , 1UJL , 2L0W , 2L1M , 2L4R , 2LE7 , 2N7G , 4HP9 , 4HQA , 5VA1 , 5VA2 , 5VA3 , 6SYG , 8IO4 , 8IO5 , 8IOB , 8ZYN , 8ZYO , 8ZYP , 8ZYQ , 9CHP , 9CHQ , 9CHR , 9CHS
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF13426 PAS_9 29 131 PAS domain Domain
PF00520 Ion_trans 407 671 Ion transport protein Family
PF00027 cNMP_binding 760 845 Cyclic nucleotide-binding domain Domain
Tissue specificity TISSUE SPECIFICITY: Highly expressed in heart and brain. Isoforms USO are frequently overexpressed in cancer cells. {ECO:0000269|PubMed:18559421}.
Sequence
MPVRRGHVAPQNTFLDTIIRKFEGQSRKFIIANARVENCAVIYCNDGFCELCGYSRAEVM
QRPCTCDFLHGPRTQRRAAAQIAQALLGAEERKVEIAFYRKDGSCFLCLVDVVPVKNEDG
AVIMFILNFEV
VMEKDMVGSPAHDTNHRGPPTSWLAPGRAKTFRLKLPALLALTARESSV
RSGGAGGAGAPGAVVVDVDLTPAAPSSESLALDEVTAMDNHVAGLGPAEERRALVGPGSP
PRSAPGQLPSPRAHSLNPDASGSSCSLARTRSRESCASVRRASSADDIEAMRAGVLPPPP
RHASTGAMHPLRSGLLNSTSDSDLVRYRTISKIPQITLNFVDLKGDPFLASPTSDREIIA
PKIKERTHNVTEKVTQVLSLGADVLPEYKLQAPRIHRWTILHYSPFKAVWDWLILLLVIY
TAVFTPYSAAFLLKETEEGPPATECGYACQPLAVVDLIVDIMFIVDILINFRTTYVNANE
EVVSHPGRIAVHYFKGWFLIDMVAAIPFDLLIFGSGSEELIGLLKTARLLRLVRVARKLD
RYSEYGAAVLFLLMCTFALIAHWLACIWYAIGNMEQPHMDSRIGWLHNLGDQIGKPYNSS
GLGGPSIKDKYVTALYFTFSSLTSVGFGNVSPNTNSEKIFSICVMLIGSLMYASIFGNVS
AIIQRLYSGTA
RYHTQMLRVREFIRFHQIPNPLRQRLEEYFQHAWSYTNGIDMNAVLKGF
PECLQADICLHLNRSLLQHCKPFRGATKGCLRALAMKFKTTHAPPGDTLVHAGDLLTALY
FISRGSIEILRGDVVVAILGKNDIFGEPLNLYARPGKSNGDVRALTYCDLHKIHRDDLLE
VLDMY
PEFSDHFWSSLEITFNLRDTNMIPGSPGSTELEGGFSRQRKRKLSFRRRTDKDTE
QPGEVSALGPGRAGAGPSSRGRPGGPWGESPSSGPSSPESSEDEGPGRSSSPLRLVPFSS
PRPPGEPPGGEPLMEDCEKSSDTCNPLSGAFSGVSNIFSFWGDSRGRQYQELPRCPAPTP
SLLNIPLSSPGRRPRGDVESRLDALQRQLNRLETRLSADMATVLQLLQRQMTLVPPAYSA
VTTPGPGPTSTSPLLPVSPLPTLTLDSLSQVSQFMACEELPPGAPELPQEGPTRRLSLPG
QLGALTSQPLHRHGSDPGS
Sequence length 1159
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  Reactome
    Voltage gated Potassium channels
Phase 3 - rapid repolarisation
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
67
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
Autoimmune lymphoproliferative syndrome due to CTLA4 haploinsufficiency Pathogenic rs9333649 RCV004813051
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Cardiac arrhythmia Likely pathogenic; Pathogenic rs794728455, rs552583527, rs2116931511, rs794728406, rs2116928557, rs2116963916, rs794728472, rs794728470, rs794728467, rs794728465, rs794728401, rs794728464, rs748706373, rs794728457, rs794728458
View all (33 more)
RCV003591864
RCV004770140
RCV001842028
RCV001842092
RCV004699552
View all (45 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Cardiovascular phenotype Pathogenic; Likely pathogenic rs2116928626, rs794728455, rs2117072537, rs2116933379, rs199472971, rs2117011733, rs2117062748, rs2486004220, rs189014161, rs730880116, rs2486100894, rs2486003255, rs2486099963, rs2486099939, rs2486094162
View all (135 more)
RCV004629627
RCV004037687
RCV004039473
RCV002440826
RCV002407094
View all (156 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Congenital long QT syndrome Likely pathogenic; Pathogenic rs1563169382, rs2116960827, rs189014161, rs794728403, rs794728449, rs773724817, rs121912504, rs121912505, rs28928904, rs121912506, rs121912507, rs121912508, rs9333649, rs28928905, rs121912510
View all (83 more)
RCV004017835
RCV002272823
RCV004017439
RCV004017459
RCV004017460
View all (104 more)
★★★★★
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
Acquired long QT syndrome not provided; Conflicting classifications of pathogenicity ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ARRHYTHMIAS, CARDIAC CTD
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Arrhythmogenic right ventricular cardiomyopathy Conflicting classifications of pathogenicity ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Atrial fibrillation Benign ClinVar
CTD, Disgenet, GWAS catalog
CTD, Disgenet, GWAS catalog
CTD, Disgenet, GWAS catalog
★★★☆☆
Reported in Unknown/Other Associations (≥2 sources)
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Acute lymphocytic leukemia Lymphocytic Leukemia BEFREE 21048156
★☆☆☆☆
Found in Text Mining only
Adenocarcinoma Adenocarcinoma BEFREE 16883575, 27517748
★☆☆☆☆
Found in Text Mining only
Adenocarcinoma Of Esophagus Esophageal Cancer BEFREE 27517748
★☆☆☆☆
Found in Text Mining only
Adenoma Adenoma LHGDN 12634931
★☆☆☆☆
Found in Text Mining only
Adenoma Adenoma BEFREE 14744775, 19577877
★☆☆☆☆
Found in Text Mining only
Adenomatous Polyposis Coli Multiple polyposis syndrome BEFREE 24403225
★☆☆☆☆
Found in Text Mining only
Adult Acute Lymphocytic Leukemia Lymphocytic Leukemia BEFREE 21048156
★☆☆☆☆
Found in Text Mining only
Anaplastic thyroid carcinoma Anaplastic thyroid cancer BEFREE 23569377
★☆☆☆☆
Found in Text Mining only
Andersen Syndrome Andersen Syndrome BEFREE 16818210, 23677719, 26109178
★☆☆☆☆
Found in Text Mining only
Andersen Syndrome Andersen-tawil syndrome Pubtator 26109178, 28336205, 32843460 Associate
★☆☆☆☆
Found in Text Mining only