Homework Answers
pI denotes the isoelectric point of amino acid. Amino acid form zwitter ion which is actually the pI.
So
pI is the average of the two pK.
pI = (pK1 + pK2) 1/2
=( 2.1 + 9.0) 1/2
= 11.2/2. = 5.6 ~5.5
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a-carboxyl group pka Amino acid Ala a-amino group pka 9.7 2.3 Arg 9.0 9.0 Asnor Gin...
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