Section 8

Ion Channels Na+/K+

March 12 Reading 1:K Channels

Query box 41   What is the main chemical difference between Na and K. Can you think of any other differences between Na and K that might play a role in creating a K or Na selective channel?

Query box 42   What role do lipids play in mechanism of k-channel activation and deactivation?

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March 14 Reading 2: NaChannel

Query box 43   Explain the difference between the conventional gating model and the one proposed based upon the crystal structure?

Query box 44   What is the advantage of using a liquid helium electron microscope