Multiple Choice
4-hydroxy-2-nonenal (4HNE) , shown below, interacts with proteins by forming covalent bonds with the nucleophilic side chains of amino acids. If a protein were incubated with 4HNE and then degraded by proteases, which of the following could represent the structure and charge of an amino acid bound to 4HNE at pH 7? 
A) 
B) 
C) 
D) 
Correct Answer:

Verified
Correct Answer:
Verified
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