Molecular Classification
Ion channel, Transporter (some CLC members)
Other Names
Chloride channel, Cl- channel
Disease Roles
Myotonia congenitaCystic fibrosisBartter syndrome

Chloride Channel Protein Overview

Chloride channel proteins are integral membrane proteins that facilitate the passive movement of chloride ions (Cl⁻) across cellular membranes. They play essential roles in maintaining cell volume, electrical excitability, pH regulation, and transepithelial transport in a wide variety of tissues. The most well-studied family is the CLC (chloride channel) family, which includes both true channels and Cl⁻/H⁺ antiporters. Mutations or dysfunctions in chloride channels are linked to various diseases.

Mechanism of Action

Inhibition of chloride ion transport

Biological Functions

Regulation of membrane potential
Electrical excitability
Cell volume regulation
Intracellular pH control
Transepithelial transport

Disease Associations

Myotonia congenita
Cystic fibrosis
Bartter syndrome
Dent's disease
Epilepsy
Osteopetrosis

Safety Considerations

  • Potential for off-target effects due to structural similarities between subtypes
  • Dysregulation can lead to a variety of diseases

Interacting Drugs

9-anthracene carboxylic acid