Ion channels

2010-11-14T14:11:03Z

080894748: Created page with 'There are three types of ion channels: 1)Voltage-Gated ion channels  e.g. Na+ and K+ channels found in nerve and muscle cells 2)Ligand Gated ion …'

There are three types of ion channels:

1)Voltage-Gated ion channels

 e.g. Na+ and K+ channels found in nerve and muscle cells

2)Ligand Gated ion channels

 e.g. nAch receptor

3)Intracellular messenger-gated ion channels

 

By measuring the current of a single ion channel in a single cell we can learn three things: The conductance of the channel, the open state probability of the channel, and the selectivity of the channel (i.e. which ions move across the channel).

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Ion channels