For lysine and arginine, the isoelectric point, pI, occurs at a pH where the net charge on the nitrogen-containing groups is +1 and balances the charge of -1 on the a-carboxyl group. Calculate pI for these amino acids.

General, Organic, and Biological Chemistry
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ISBN:9781285853918
Author:H. Stephen Stoker
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Chapter20: Proteins
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Problem 20.48EP: Most amino acids have isoelectric points between 5.0 and 6.0, but the isoelectric point of lysine is...
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For lysine and arginine, the isoelectric point, pI, occurs at a pH where the net charge on the nitrogen-containing groups is +1 and balances the charge of -1 on the a-carboxyl group. Calculate pI for these amino acids.

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