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1. What is the charge of the primary structure of proteins at pH = 2.0, 4.0,6.0 and 11.0 of the following proteins. Draw their structures and predict their net charge. A) Lys- Gly- Ala- Gly B) Lys- Gly-Ala-Glu C) His- Gly- Ala- Glu D) Glu- Gly- Ala -Glu E) Gln-Gly-Ala-Lys

1. What is the charge of the primary structure of proteins at pH = 2.0, 4.0,6.0 and 11.0 of the following proteins. Draw their structures and predict their net charge. A) Lys- Gly- Ala- Gly B) Lys- Gly-Ala-Glu C) His- Gly- Ala- Glu D) Glu- Gly- Ala -Glu E) Gln-Gly-Ala-Lys

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 charge of the primary structure of proteins at pH = 2.0, 4.0,6.0 and 11.0 of the following proteins. Draw their structures and predict their net 1. charge. A) Lys- Gly- Ala- Gly B) Lys- Gly-Ala-Glu C) His- Gly- Ala- Glu D) Glu- Gly- Ala -Glu E) Gln-Gly-Ala-Lys 2. Calculate the pI of the following primary structure of protein 3. the migration toward the cathode, the negative pole; A for the migration toward the anode, the positive pole; and o if the peptide remains stationary.
Transcribed Image Text:What is the charge of the primary structure of proteins at pH = 2.0, 4.0,6.0 and 11.0 of the following proteins. Draw their structures and predict their net 1. charge. A) Lys- Gly- Ala- Gly B) Lys- Gly-Ala-Glu C) His- Gly- Ala- Glu D) Glu- Gly- Ala -Glu E) Gln-Gly-Ala-Lys 2. Calculate the pI of the following primary structure of protein 3. the migration toward the cathode, the negative pole; A for the migration toward the anode, the positive pole; and o if the peptide remains stationary.
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