What Prevents Proton Translocation Through Aquaporins

question 55

Multiple Choice

What prevents proton translocation through aquaporins?

• A) Asp and Glu residues bind to protons to prevent their translocation.
• B) Carbonyl groups in the selectivity filter interact with water molecules.
• C) Two side chain amide groups act as hydrogen bond donors to a single water molecule.
• D) All of the answers are correct.
• E) None of the answers is correct.

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