Amino Acids & Proteins MCAT Practice Question
A researcher studying protein structure finds that a particular amino acid residue at position 47 of an enzyme forms a disulfide bond with residue 83. The enzyme loses activity when treated with beta-mercaptoethanol. Which amino acid is most likely at position 47?
Answer choices
- AGlycine
- BMethionine
- CSerine
- DCysteineCorrect answer
- EAlanine
- FProline
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