Structure of Isoleucine:
pKa1 = 2.4 (carboxyl group)
pKa2 = 9.7 (amino group)
Modify isoleucine to show the predominant form at pH 1, 7, and 13. Isoleucine has pKa values of 2.4 (carboxyl group) and 9.7 (amino group). Include hydrogen atoms.
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