Journal
PHYSIOLOGICAL REVIEWS
Volume 92, Issue 3, Pages 1393-1478Publisher
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/physrev.00036.2011
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Funding
- Senior Research Fellowship from the National Health and Medical Research Council (NHMRC) [459401, 1019693]
- Future Fellowship from the Australian Research Council (ARC) [FT110100075]
- NHMRC
- ARC
- National Heart Foundation of Australia
- St. Vincent's Clinic Foundation
- Australian Research Council [FT110100075] Funding Source: Australian Research Council
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Vandenberg JI, Perry MD, Perrin MJ, Mann SA, Ke Y, Hill AP. hERG K+ Channels: Structure, Function, and Clinical Significance. Physiol Rev 92: 13931478, 2012; doi: 10.1152/physrev.00036.2011.-The human ether-a-go-go related gene (hERG) encodes the pore-forming subunit of the rapid component of the delayed rectifier K+ channel, Kv11.1, which are expressed in the heart, various brain regions, smooth muscle cells, endocrine cells, and a wide range of tumor cell lines. However, it is the role that Kv11.1 channels play in the heart that has been best characterized, for two main reasons. First, it is the gene product involved in chromosome 7-associated long QT syndrome (LQTS), an inherited disorder associated with a markedly increased risk of ventricular arrhythmias and sudden cardiac death. Second, blockade of Kv11.1, by a wide range of prescription medications, causes drug-induced QT prolongation with an increase in risk of sudden cardiac arrest. In the first part of this review, the properties of Kv11.1 channels, including biogenesis, trafficking, gating, and pharmacology are discussed, while the second part focuses on the pathophysiology of Kv11.1 channels.
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