Kcnq5 Protein Potassium Channel Kv7.5 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Overview
KCNQ5 encodes the Kv7.5 potassium channel, a voltage-gated potassium channel that contributes to the M-current and plays important roles in neuronal excitability regulation. It is expressed in various brain regions and skeletal muscle, and can form heteromeric channels with KCNQ3. [@lerche2000]
Protein Information
Structure
The KCNQ5 channel contains:
Six Transmembrane Segments (S1-S6): Voltage sensor and pore domains
Pore Region: Selectivity filter with GYG motif
N-terminal Domain: Assembly and regulatory elements
C-terminal Domain: Contains subunit interaction domain for heteromerization
[Proteins/Kcnq5-Protein](/proteins/kcnq5-protein) — This page
Background
The study of Kcnq5 Protein Potassium Channel Kv7.5 has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
External Links
[PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
[Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
[Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data
KCNQ5 (Potassium Voltage-Gated Channel Subfamily Q Member 5) is a voltage-gated potassium channel that regulates neuronal excitability. It plays important roles in synaptic transmission, muscle function, and cellular repolarization. Dysregulation is implicated in epilepsy, Alzheimer's disease, and other neurological conditions. While potassium channel openers like retigabine have been approved for epilepsy, challenges with side effects have limited their use.