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Small-conductance Ca2+-activated K+ channels: form and function

John P Adelman1, James Maylie, Pankaj Sah

  • 1Vollum Institute, Oregon Health & Science University, Portland, Oregon 97239, USA. adelman@ohsu.edu

Annual Review of Physiology
|September 28, 2011
PubMed

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A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
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Voltage-gated Ion Channels01:26

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Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
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Non-gated Ion Channels01:24

Non-gated Ion Channels

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Mechanically-gated Ion Channels

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