where does the amino acid have a net charge of -1
Added by Jill R.
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Step 1: Consider ionizable groups in an amino acid (α-carboxyl, α-amino, and any side-chain groups) and typical pKa values. Show more…
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Which of the following amino acids has a net charge of +2 at low pH (pH=1)? Aspartic acid, alanine, arginine, glutamic acid, leucine, lysine. Which of the following amino acids has a net charge of -2 at high pH (pH=14)? Aspartic acid, alanine, arginine, glutamic acid, leucine, lysine.
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A new amino acid with an acidic side chain has been identified with the following pKa values: pKa (-COOH) = 2.07, pKa (-NH3+) = 10.60, pKa (acidic side chain) = 3.91. What is the charge on the amino acid at pH = 11.0?
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