Aliases for KCNH2 Gene
- Potassium Channel, Voltage Gated Eag Related Subfamily H, Member 2 2 3
- HERG 3 4 6
- Potassium Voltage-Gated Channel, Subfamily H (Eag-Related), Member 2 2 3
- Ether-A-Go-Go-Related Gene Potassium Channel 1 3 4
- Voltage-Gated Potassium Channel Subunit Kv11.1 3 4
- Ether-A-Go-Go-Related Protein 1 3 4
- Eag-Related Protein 1 3 4
- Eag Homolog 3 4
- ERG-1 3 4
- HERG1 3 4
External Ids for KCNH2 Gene
Previous Symbols for KCNH2 Gene
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 distinct isoforms have been identified. [provided by RefSeq, Jul 2008]
GeneCards Summary for KCNH2 Gene
KCNH2 (Potassium Channel, Voltage Gated Eag Related Subfamily H, Member 2) is a Protein Coding gene. Diseases associated with KCNH2 include short qt syndrome 1 and melanomatosis. Among its related pathways are Prostate Cancer and Transcriptional misregulation in cancer. GO annotations related to this gene include protein homodimerization activity and ubiquitin protein ligase binding. An important paralog of this gene is KCNH1.
UniProtKB/Swiss-Prot for KCNH2 Gene
Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel. Channel properties are modulated by cAMP and subunit assembly. Mediates the rapidly activating component of the delayed rectifying potassium current in heart (IKr). Isoforms USO have no channel activity by themself, but modulates channel characteristics by forming heterotetramers with other isoforms which are retained intracellularly and undergo ubiquitin-dependent degradation.
Voltage-gated potassium channels (KV) belong to the 6-TM family of potassium channel that also comprises the Ca2+-activated Slo (actually 7-TM) and the Ca2+-activated SK subfamilies. The pore-forming alpha-subunits contain a single pore-forming region and combine to form tetramers. Heteromeric channels can be formed within subfamilies e.g. KV1.1 with KV1.2 and KCNQ2 with KCNQ3.