1. Draw the peptide HSK below at pH 7 and give its overall charge at pH 2, 7, and 12:
1. Draw the peptide HSK below at pH 7 and give its overall charge at pH 2, 7, and 12:
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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Transcribed Image Text:Amino Acid pka Values
Amino Acid
a-carboxylic
acid
Alanine
2.35
Arginine
2.01
Asparagine
2.02
Aspartic Acid 2.10
Cysteine
2.05
Glutamic Acid
2.10
Glutamine
2.17
2.35
1.77
2.32
2.33
2.18
Glycine
Histidine
Isoleucine
Leucine
Lysine
Methionine
Phenylalanine
Proline
Serine
Threonine
Tryptophan
Tyrosine
Valine
2.28
2.58
2.00
2.21
2.09
2.38
2.20
2.29
a-amino
9.87
9.04
8.80
9.82
10.25
9.47
9.13
9.78
9.18
9.76
9.74
8.95
9.21
9.24
10.60
9.15
9.10
9.39
9.11
9.72
Side chain
12.48
3.86
8.00
4.07
6.10
10.53
10.07
1. Draw the peptide HSK below at pH 7 and give its overall charge at pH 2, 7, and 12:
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