MEMBRANE TRANSPORT

 

Na K pump

 

animated pump

K+ Channel

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subunits
K+
nonpolar asp glu
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gramacidin

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sidechains val leu trp ala gly
lipids
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Valinomycin
Valinomycin with K+

The high frequencies of Cystic Fibrosis, especially in europeans, may be due to its amelioration of the effects of cholera toxin which interferes with G protein control of Adenyl cyclase leading to dehydration.