Which of the following amino acids could form a hydrogen-bonding interaction between their sidechains? A. Q...
Which of the following amino acids could form a hydrogen-bonding interaction between their sidechains?
A. Q and A
B. Q and V
C. Q and F
D. Q and I
E. Q and W
please explain ty
Q = glutamine A = analine V = valine F = phenylaline I = isoleucine W = tryptophan
Homework Answers
Correct option : E
Only glutamine and tryptophan have H-bond donor and H-bond acceptor moieties in their sidechains. Hence, these amino acids could form a H-bonding interaction between their side chains.
All other amino acids in the options have non-polar, hydrophobic side chains incapable of forming H-bonds with side chains of other amino acids.
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