Kir channels exhibit voltage-dependent changes in conductance because Ca++ binding to the C-terminal will depend on voltage-gated Ca++ channels Mg++ and spermine block the pore at depolarized Vm They are opened directly by depolarization Mg++ blocks the pore at hyperpolarized Vm

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Kir channels exhibit voltage-dependent changes in conductance because
Ca++ binding to the C-terminal will depend on voltage-gated Ca++ channels
Mg++ and spermine block the pore at depolarized Vm
They are opened directly by depolarization
Mg++ blocks the pore at hyperpolarized Vm
Transcribed Image Text:Kir channels exhibit voltage-dependent changes in conductance because Ca++ binding to the C-terminal will depend on voltage-gated Ca++ channels Mg++ and spermine block the pore at depolarized Vm They are opened directly by depolarization Mg++ blocks the pore at hyperpolarized Vm
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