Question

Why histidine is found in most of the active sites?

Answer 1

Answer:

Role in structure: Histidine has a pKa near to that of physiological pH, meaning that it is relatively easy to move protons on and off of the side chain (i.e. changine the side chain from neutral to postive charge). ... Role in function: Histidines are the most common amino acids in protein active or binding sites.

Explanation:

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