Biology, 28.02.2020 04:45 bloodmoonangel01
One method for separating polypeptides makes use of their different solubilities. The solubility of large polypeptides in water depends upon the relative polarity of their R groups, particularly on the number of ionized groups: the more ionized groups there are, the more soluble the polypeptide.
1. Which of each pair of the polypeptides that follow is more soluble at the indicated pH?
(a) (Gly)_20 or (Lys-Ala)_3 at pH 7.0:
O (Gly)_20
O (Lys-Ala)_3
(b) (Glu)_20 or (Phe-Met)_3 at pH 7.0:
O (Glu)_20
O (Phe-Met)_3
Answers: 3
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One method for separating polypeptides makes use of their different solubilities. The solubility of...
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