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 7, Problem 7Q
Summary Introduction
To review:
The sugar code used for encoding informationis often called “analog” system, while Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA)-directed protein synthesis is called “digital” system
Introduction:
Glycome is the total set of sugars and glycans, free or present in a complex form, that a cell or organism produces. It is, thus, the total carbohydrates present in the cell. It is very complex in nature whencompared to the proteome. Its diversity and complexity arises due to its interaction with proteins, which results in the formation of glycoproteins. Glycoproteins are mainly used in modifying the behavior ofa cell in response to an external signal.
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What is a caspase? Describe in terms of its molecular function and what cellular function it elicits.
The following RNA sequence represents a small messenger which can be translated in a prokaryotic cell:
5'-ACGAAUGCACAGUAAAACUGGCUAGCGUAGGCUGA-3
Assume that the messenger RNA is translated in the cell, using the correct machinery and signals
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A. Write the sequence of a protein that would be translated from this mRNA, using the appropriate stop and start
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B. Suppose that the underlined A in the sequence is changed to a U. Write the expected protein product of this
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What is the smallest number of molecules of ATP and GTP consumed in the synthesis of a protein with 200 residues after
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number of ATP molecules:
number of GTP molecules:
400
800
Incorrect
Chapter 7 Solutions
Biochemistry: The Molecular Basis of Life
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