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What is the overall net charge on the peptide

What is the overall net charge on the peptide

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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What is the overall net charge on the peptide lys- lys-ser-glu at pH 6.0? pka of the side chain R- groups are: D (3.9), E (4.2), H (6.0), C (8.3), Y (10.1), K (10.5) and R (12.5). pka of the Amino acid carboxyl group 2.1; amino group 9.6 pKa of the Oligopeptide N-terminal amino group 7.4; Oligopeptide C-terminal carboxyl group 3.6
Transcribed Image Text:What is the overall net charge on the peptide lys- lys-ser-glu at pH 6.0? pka of the side chain R- groups are: D (3.9), E (4.2), H (6.0), C (8.3), Y (10.1), K (10.5) and R (12.5). pka of the Amino acid carboxyl group 2.1; amino group 9.6 pKa of the Oligopeptide N-terminal amino group 7.4; Oligopeptide C-terminal carboxyl group 3.6
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