Inside of skeletal muscle cells are voltage-controlled calcium ion (Ca2+) gate proteins. These are integral for the contraction mechanisms of skeletal muscle. A picture of them is shown below. These are regulated by voltage, as indicated above. How would voltage serve to open or close these gates? Voltage is a component of hydrogen bonds, which is necessary to maintain the secondary structure of the protein; without voltage, the protein starts to chemically degrade. Voltage actually does not serve as the direct mechanism of opening or closing gated proteins. Changing the voltage changes whether the R groups are charged or not, which alters the actual primary structure of the protein Changing voltage changes the nature of the tertiary structure, causing the protein to change its shape to open or close.

Ion channels are membrane proteins that form a pore to permits ions to go through the channel. In…

Answered: Inside of skeletal muscle cells are…

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

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Inside of skeletal muscle cells are voltage-controlled calcium ion (Ca2+) gate proteins. These are integral for the contraction mechanisms of skeletal muscle. A picture of them is shown below.

These are regulated by voltage, as indicated above. How would voltage serve to open or close these gates?

	Voltage is a component of hydrogen bonds, which is necessary to maintain the secondary structure of the protein; without voltage, the protein starts to chemically degrade.
	Voltage actually does not serve as the direct mechanism of opening or closing gated proteins.
	Changing the voltage changes whether the R groups are charged or not, which alters the actual primary structure of the protein
	Changing voltage changes the nature of the tertiary structure, causing the protein to change its shape to open or close.

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