Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 15, Problem 14RQ
Summary Introduction
To review:
The three purposes served by protein turnover.
Introduction:
Protein is a building block of the body. A majority of the cellular components are made up of proteins. Amino acids are the key constituents of proteins. Proteins play many important roles and are very essential for the growth and development of an organism. The continuous synthesis and degradation of proteins is commonly termed as ‘protein turnover’.
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Chapter 15 Solutions
Biochemistry: The Molecular Basis of Life
Ch. 15 - Prob. 1QCh. 15 - Prob. 2QCh. 15 - Prob. 5QCh. 15 - Prob. 6QCh. 15 - Prob. 7QCh. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQ
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- What does this important observation imply about the relation between the amino acid sequence of insulin and its three-dimensional structure?arrow_forwardPKU is an abbreviation for what disorder? What are the symptoms of PKU? How can PKU be treated for a nearly normal life?arrow_forwardAll coenzymes are cofactors, but not all cofactors are coenzymes. Explain this statement.arrow_forward
- Lactose permease, a protein of E. coli, is composed of a singlepolypeptide that is 417 amino acids in length. By convention, theamino acids within a polypeptide are numbered from the aminoterminalend to the carboxyl-terminal end. Are the following questionsabout lactose permease true or false?A. Because the sixty-fourth amino acid is glycine and the sixty- eighth amino acid is aspartic acid, the codon for glycine,64, is closer to the 3′ end of the mRNA than the codon for aspartic acid, 68.B. The mRNA that encodes lactose permease must be greater than1241 nucleotides in length.arrow_forwardWhy can aldoses and ketoses both behave as reducing sugars?arrow_forwardWhat is coenzyme A and why is it important?arrow_forward
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