S4 helix of voltage-gated channels is the voltage sensor of the channel

AI Thread Summary
The S4 segment in mobile systems can be influenced by external currents or charged particles. It interacts with ions present on either side of a membrane, adhering to principles of attraction, repulsion, and Coulomb's law under normal conditions. Understanding these interactions is crucial for grasping the behavior of the S4 segment in various environments.
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im trying to understand this any explanations
 
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Hi,

The S4 segment is mobile. It may be moved by an external current or the presence of some charged particles.
Fortunately, there are many called ions that are located on each side of the membrane.

The S4 segment obeys, in normal circumstances, to attraction and repulsion and Coulomb law.
 

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