Related Experiment Video
Updated: Feb 25, 2026

Pull-down of Calmodulin-binding Proteins
Published on: January 23, 2012
Treatment of calmodulinopathy with verapamil
Gregory Webster1, Zachary J Schoppen1, Alfred L George2
1Division of Cardiology, Ann and Robert H Lurie Children's Hospital of Chicago, Chicago, Illinois, USA.
Abstract:
Pathological variants in genes encoding calmodulin are associated with severe clinical presentations, including recurrent ventricular fibrillation and sudden death. Beta-receptor antagonists (beta-blockers) and sodium-channel antagonists have been reported as pharmacotherapies in these disorders; however, recent data have demonstrated the importance of derangements in calcium channel inactivation. We report a sustained attempt to use calcium-channel antagonists to treat calmodulinopathy and review the treatment strategies reported in the literature to date.
Insights
Genetic calmodulin variants cause severe heart rhythm disorders. This study explores using calcium channel blockers to treat calmodulinopathy, a condition linked to sudden death.
Area of Science:
- Cardiology
- Genetics
- Pharmacology
Background:
- Pathological variants in calmodulin genes are linked to severe cardiac conditions like sudden death.
- Current treatments include beta-blockers and sodium-channel antagonists.
- Calcium channel inactivation plays a crucial role in these disorders.
More Related Videos
Related Concept Videos
Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
Calmodulin-dependent Signaling
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
Antianginal Drugs: Calcium Channel Blockers and Ranolazine
CCBs, a diverse class that includes dihydropyridines (nifedipine) and diphenylalkylamines (verapamil and diltiazem), exert their effect by blocking calcium channels in cardiac and smooth muscle cells. This...
Antihypertensive Drugs: Action of Calcium Channel Blockers
Antiepileptic Drugs: Calcium Channel Blockers
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
Myocarditis III: Medical Management

