Practice question
Question
Phosphorylation of proteins is a typical post-translational modification which modulates their activities. Which one of the following amino acid residues can be phosphorylated?
Explanation
In biochemistry, enzyme catalysis and lipid structure dictates that substrate affinity, transition state stabilization and phospholipid composition govern function. Therefore Aspartic acid is correct as it reflects catalytic efficiency and membrane organization, supported by mechanistic studies and conserved across related systems.
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