How heart potassium channels open and close to control heartbeat
Conformational Dynamics and Regulatory Mechanisms in the KCNH Family of Ion Channels
Researchers will learn how a family of heart potassium channels move and work so they can better understand causes of dangerous heart rhythms.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Maryland Baltimore NIH-funded |
| Lab location | 1 site (Baltimore, United States) |
| Project ID | NIH-11261161 on NIH RePORTER |
What this research studies
From my perspective as a patient, the team is studying tiny protein channels in heart cells that let potassium flow and help set the heartbeat. In the lab they will replace single protein building blocks with special light-sensitive or glowing tags and record electrical activity to watch the channels open and close. These experiments use precise electrical measurements and light-based probes to reveal how specific pieces of the channel move and how internal parts of the protein talk to each other. The goal is to create a clearer picture of how channel faults can lead to arrhythmias and guide future safer medicines or tests.
Who could benefit from this research
Good fit: People with inherited or drug-induced cardiac arrhythmias, such as long QT syndrome, are most likely to benefit from insights produced by this research.
Not a fit: Patients with heart problems caused mainly by structural disease, valve disorders, or non-channel mechanisms are unlikely to receive direct benefit from this basic laboratory work.
Why it matters
Potential benefit: If successful, this work could point to new targets for drugs or tests that prevent or treat certain cardiac arrhythmias.
How similar studies have performed: Previous biophysical studies of ion channels have helped explain disease mechanisms and informed drug development, but using photoactivatable non-canonical amino acids to track the S4 voltage-sensing helix is a newer experimental approach.
Where this research is happening
Baltimore, United States
- University of Maryland Baltimore — Baltimore, United States (Active)
Researchers
- Principal investigator: Trudeau, Matthew C — University of Maryland Baltimore
- Study coordinator: Trudeau, Matthew C
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.