In some cases, a single amino acid substitution can cause a protein to lose its biological activity. In other cases, a single amino acid substitution causes no change to a protein's biological activity. Which statement can best be used as evidence to support an explanation for these observations?
In some cases, a single amino acid substitution can cause a protein to lose its biological activity. In other cases, a single amino acid substitution causes no change to a protein's biological activity. Which statement can best be used as evidence to support an explanation for these observations?
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:In some cases, a single amino acid substitution can cause a protein to lose its biological activity. In other cases, a single
amino acid substitution causes no change to a protein's biological activity. Which statement can best be used as evidence to
support an explanation for these observations?
Amino acids found in the proteins of living organisms have many similarities, including an alpha-amino group and an
alpha-carboxyl group.
O Each amino acid side chain has properties that are very different from those of some side chains and very similar to those
of others.
Amino acids occur as optical isomers, but only one isomer of each is found in the proteins of most of the organisms on
Earth.
Noncovalent interactions between atoms in a polypeptide chain stabilize the secondary, tertiary, and quaternary levels of
its structure.
O Amino acids are covalently linked through peptide bonds to form the primary structure of a protein.
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