Question

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Which amino acid have an alcoholic (OH) group ??​

Answer 1

Tyrosine. The phenolic hydroxyl group of this aromatic amino acid has a weakly acidic pK′ of about 10, and therefore is unionized at physiological pH. In some enzymes, the hydrogen of the phenolic hydroxyl group can participate in hydrogen bond formation with oxygen and nitrogen atoms.

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Answer 2

Answer:

Tyrosine. The phenolic hydroxyl group of this aromatic amino acid has a weakly acidic pK′ of about 10, and therefore is unionized at physiological pH. In some enzymes, the hydrogen of the phenolic hydroxyl group can participate in hydrogen bond formation with oxygen and nitrogen atoms.

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