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9 Cards in this Set
- Front
- Back
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Sites between animal cells for intercellular communication.
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Gap Junctions
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What plays an important role in the coordinated contractions of the heart muscle?
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Gap Junctions
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Gap junctions are composed entirely of a membrane protein called _______.
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Connexin
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Connexins are organized into a complex called _______.
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Connexon
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_______ connexin subunits form a connexon (half of the channel).
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6
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A molecule with a molecular mass of less than _______ daltons can pass through gap junctions.
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1000
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What ion regulates gap junctions?
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Calcium
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Are gap junctions selective to which molecules pass through?
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No, if the molecule is small enough (<1000D), it passes through the open pipeline.
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Gap junctions are gated, regulated by the phosphorylation of _______ subunits.
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Connexin
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