Question
Biology Question on Common regulatory mechanisms in synthesis of amino acids
The amino acid residue that favors the occurrence of a turn in the protein structure is
A
Proline
B
Glutamic acid
C
Serine
D
Glutamic acid
Answer
Proline
Explanation
Solution
The amino acid residue that is known to favor the occurrence of a turn in protein structure is:
Proline is unique among amino acids because of its rigid cyclic structure, which can introduce a kink or turn in the polypeptide chain. This characteristic makes proline especially prevalent in turns and loops of proteins.
So, the correct answer is Proline.