To predict the percent protonation of the imidazole nitrozen atom in histidine at a physiological pH of 7.3. Concept introduction: This structure of histidine is

Question

What fraction of the side-chain amine on arginine is protonated at pH=10? At pH = 13? Express as a %. At pH = 10, 0% protonated. At pH = 13,76% protonated. At pH=10, 100% protonated. At pH-13, 76% protonated. At pH= 10, 0% protonated. At pH=13, 24% protonated. At pH-10, 100% protonated. At pH= 13, 24% protonated

Answer 1

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 24.9, Problem 21P

Interpretation Introduction

Interpretation:

To predict the percent protonation of the imidazole nitrozen atom in histidine at a physiological pH of 7.3.

Concept introduction:

This structure of histidine is

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What fraction of the side-chain amine on arginine is protonated at pH=10? At pH = 13? Express as a %. At pH = 10, 0% protonated. At pH = 13,76% protonated. At pH=10, 100% protonated. At pH-13, 76% protonated. At pH= 10, 0% protonated. At pH=13, 24% protonated. At pH-10, 100% protonated. At pH= 13, 24% protonated

Why is the amino acid proline not commonly found in alpha-helices or beta-sheets? In what secondary structure might proline be commonly found?

(a) The isoelectric point (pI) of phenylalanine is pH 5.5. Draw the structure of the major form of phenylalanine at pHvalues of 1, 5.5, and 11.(b) The isoelectric point of histidine is pH 7.6. Draw the structures of the major forms of histidine at pH values of 1, 4,7.6, and 11. Explain why the nitrogen in the histidine ring is a weaker base than the a-amino group.(c) The isoelectric point of glutamic acid is pH 3.2. Draw the structures of the major forms of glutamic acid at pH valuesof 1, 3.2, 7, and 11. Explain why the side-chain carboxylic acid is a weaker acid than the acid group next to thea-carbon atom

Answer 2

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 24.9, Problem 21P

Interpretation Introduction

Interpretation:

To predict the percent protonation of the imidazole nitrozen atom in histidine at a physiological pH of 7.3.

Concept introduction:

This structure of histidine is

Expert Solution & Answer

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See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 24.9, Problem 21P

Interpretation Introduction

Interpretation:

To predict the percent protonation of the imidazole nitrozen atom in histidine at a physiological pH of 7.3.

Concept introduction:

This structure of histidine is

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 24.9, Problem 21P

Interpretation Introduction