The amino acid residues that are invariant in the given sequence. Introduction: Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

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Answer 1

Question

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

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You’ve isolated a protein and determined that the Native molecular weight of the holoenzyme is 160 kD using size exclusion chromatography. Analysis of this protein using SDS-PAGE revealed 2 bands, one at 100 kD and one at 30 kD. The enzyme was found to be 0.829% NAD (by weight). What further can be said regarding the structure of the polypeptide?

Answer 2

Question

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

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Answer 3

Question

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

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Answer 4

Question

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

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Answer 5

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 6

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 7

Chapter 3, Problem 21P

(a)

Summary Introduction

To determine: The amino acid residues that are invariant in the given sequence.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 8

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 9

(b)

Summary Introduction

To determine: The positions at which the amino acids are limited to those with positively charged side chains and which amino acid predominates at each position

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 10

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 11

(c)

Summary Introduction

To determine: The positions at which the substitutions are restricted to amino acids with negatively charged side chains. Also, to determine the amino acid that predominates each position.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 12

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 13

(d)

Summary Introduction

To determine: The position at which any amino acid can be occupied and the amino acid that appears most often.

Introduction:

Protein folding is a process, by which a protein molecule acquires biologically functional 3-D (three-dimensional) conformation from its random coiled structure. After translation, proteins have an unfolded linear chain of amino acids.. This protein or polypeptide begins to fold into 3-D structure as it is synthesized within the ribosome. Chaperones are molecules that assist protein folding.

Answer 14

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Answer 16

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Answer 17

Ch. 3 - Prob. 1P Ch. 3 - Prob. 2P Ch. 3 - Prob. 3P Ch. 3 - Prob. 4P Ch. 3 - Prob. 5P Ch. 3 - Prob. 6P Ch. 3 - Prob. 7P Ch. 3 - Prob. 8P Ch. 3 - Prob. 9P Ch. 3 - Prob. 10P

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