Multiple Choice
In the potassium ion channel, which of the following is critical in the function of the selectivity filter?
A) The K+ binds to a critical Glu residue.
B) The K+ binds to the amide groups of three residues in the selectivity filter.
C) The K+ binds to the carbonyl groups of the backbone of a conserved pentapeptide sequence.
D) An ATP molecule must be bound for the selectivity filter to operate.
E) None of the answers is correct.
Correct Answer:
Verified
Correct Answer:
Verified
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