KCNH2, Official Symbol KCNH2provided by HGNC Official Full Name potassium voltage-gated channel subfamily H member 2provided by HGNC Primary source HGNC:HGNC:6251 See related Ensembl:ENSG00000055118 MIM:152427; AllianceGenome:HGNC:6251 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as ERG1; HERG; LQT2; SQT1; ERG-1; H-ERG; HERG1; Kv11.1 Summary This gene encodes a component of a voltage-activated potassium channel found in cardiac muscle, nerve cells, and microglia. Four copies of this protein interact with one copy of the KCNE2 protein to form a functional potassium channel. Mutations in this gene can cause long QT syndrome type 2 (LQT2). Transcript variants encoding distinct isoforms have been identified. [provided by RefSeq, May 2022] Expression Broad expression in bone marrow (RPKM 13.5), testis (RPKM 10.7) and 14 other tissues See more Orthologs mouse all