Draw the amino acid below in its most protonated form, any intermediately protonated forms, and its least protonated form. Also draw a titration curve for this amino acid, with pH on the y-axis and equivalents on the x-axis going from acidic to basic (most protonated to least protonated) using the pKa values below. Match the protonated/deprotonated forms to the appropriate regions of the titration curve. Scan your drawing, and upload as a pdf, jpeg, or tiff file. H3C N O OH

Draw the amino acid below in its most protonated form, any intermediately protonated forms, and its least protonated form. Also draw a titration curve for this amino acid, with pH on the y-axis and equivalents on the x-axis going from acidic to basic (most protonated to least protonated) using the pKa values below. Match the protonated/deprotonated forms to the appropriate regions of the titration curve. Scan your drawing, and upload as a pdf, jpeg, or tiff file. H3C N O OH

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter10: From Proteins To Phenotypes

Section: Chapter Questions

Problem 14QP: If phenylalanine was not an essential amino acid, would diet therapy (the elimination of...

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Question

pKas of ionizable groups of amino acids and peptides:
Serine (hydroxyl):
Threonine (hydroxyl):
amino acid carboxyl:
amino acid amino:
Aspartate (carboxyl): 4
Glutamate (carboxyl): 4
Histidine (imidazole): 6
Cysteine (sulfhydryl): 8.5
Tyrosine (hydroxyl):
Lysine (amino):
10.5
10.5
Arginine (guanadino): 12.5
13
13
2
9.5

Draw the amino acid below in its most protonated form, any intermediately protonated
forms, and its least protonated form.
Also draw a titration curve for this amino acid, with pH on the y-axis and equivalents on the
x-axis going from acidic to basic (most protonated to least protonated) using the pka values
below.
Match the protonated/deprotonated forms to the appropriate regions of the titration curve.
Scan your drawing, and upload as a pdf, jpeg, or tiff file.
H3C
O
NH₂
pKas are provided below:
OH

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