Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Transcribed Image Text:13.
The dominant form of the dipeptide ME (Met-Glu) in a solution is shown below.
(i) What is the most likely pH of the solution? (Circle one.)
a.
a. pH = 1
b. pH = 7
c. pH=9
(iii) What is the net charge of the dominant form at pH = 11?
b. -1
c. 0
H₂N
Estimate the pl of the peptide. Show your calculations.
CH
CH3
Label the N-terminus, C-terminus, and peptide (amide) bond in the peptide.
d. 1
CH₂
CH₂
S
CH- C-OH
CH₂
CH₂
11
C10
OH
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