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More current with less calcium: Computational models help solve longstanding ion channel evolution mystery
Publication: Phys.org - latest science and technology news stories
Author: Not available in collected metadata
Source published: 21/10/2026, 09:00:06 UTC
Briefing created: 21/10/2026, 09:19:50 UTC
Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 21/10/2026, 09:10:24 UTC.
Briefings
Recent computational modeling resolves a long-standing mystery regarding the evolutionary origin of high-conductance potassium channels. The evidence indicates that early 1980s observations of 'BK' channels, which possess roughly 10 times the unitary conductance of other potassium channels, were not the result of a single evolutionary event but rather a result of multiple independent evolutionary events. This breakthrough allows scientists to understand how such extreme conductance evolved through computational simulations rather than relying solely on structural explanations.
Key points
- Early 1980s observations identified 'BK' channels with roughly 10 times the unitary conductance of other potassium channels.
- Computational models now explain that these high-conductance channels evolved through multiple independent evolutionary events rather than a single event.
Context
This research resolves a longstanding evolutionary mystery regarding the origin of high-conductance potassium channels, which were first observed in the early 1980s. The findings, published in 2026, utilize computational models to explain how such extreme conductance evolved, providing a new perspective on ion channel evolution.
Limitations
The evidence is limited to the early 1980s observations of 'BK' channels and their unitary conductance. The computational models are theoretical and do not provide definitive proof of evolutionary mechanisms. The study does not include additional background information on the broader context of ion channel evolution.
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