Domanda del libro di testo
What is meant by the following terms as they apply to protein structure, and what bonds or molecular interactions stabilize that level of structure?
b. Secondary structure
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Ch.18 Amino Acids and Proteins
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 18, Problema 85b
What level of protein structure is determined by the following:
b. Hydrogen bonds between backbone carbonyl oxygen atoms and hydrogen atoms attached to backbone nitrogen atoms?
Guida verificata passo dopo passo1
Understand the levels of protein structure: Proteins have four levels of structure—primary, secondary, tertiary, and quaternary. Each level describes a different aspect of the protein's organization.
Recall the definition of secondary structure: The secondary structure of a protein is determined by hydrogen bonding between the backbone carbonyl oxygen atoms (C=O) and the hydrogen atoms attached to the backbone nitrogen atoms (N-H). These interactions form specific patterns such as alpha-helices and beta-pleated sheets.
Identify the type of bonding described in the problem: The problem specifies hydrogen bonds between the backbone carbonyl oxygen and backbone nitrogen hydrogen atoms, which is characteristic of secondary structure.
Relate the bonding to the structural patterns: These hydrogen bonds stabilize the alpha-helices and beta-sheets, which are the two main types of secondary structure in proteins.
Conclude that the level of protein structure described in the problem is the secondary structure, as it is defined by these specific hydrogen bonding interactions.
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Protein Structure Levels
Proteins have four levels of structure: primary, secondary, tertiary, and quaternary. Each level represents a different aspect of protein organization, from the sequence of amino acids (primary) to the overall three-dimensional shape (tertiary) and the assembly of multiple polypeptide chains (quaternary). Understanding these levels is crucial for grasping how proteins function.
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2:56
Summary of Protein Structure Concept 1
Secondary Structure
Secondary structure refers to the local folding of the polypeptide chain into specific shapes, primarily alpha helices and beta sheets. These structures are stabilized by hydrogen bonds between the backbone atoms, specifically between carbonyl oxygen atoms and hydrogen atoms attached to nitrogen atoms in the peptide bonds. This level of structure is essential for the overall stability and function of proteins.
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1:24Secondary Protein Structure Example 2
Hydrogen Bonds in Proteins
Hydrogen bonds are weak interactions that occur between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom. In proteins, these bonds play a critical role in stabilizing secondary structures by forming between the backbone atoms, influencing the protein's shape and functionality. Understanding these interactions is key to studying protein dynamics.
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1:22Hydrogenation Reactions Concept 1
Pratica correlata
Domanda del libro di testo
How do the following interactions help to stabilize the tertiary and quaternary structure of a protein? Give an example of a pair of amino acids that could give rise to each interaction.
b. Disulfide bonds
630
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Domanda del libro di testo
Give an example of a protein that has quaternary structure. How many polypeptide chains are present in this protein?
758
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Domanda del libro di testo
How do the following noncovalent interactions help to stabilize the tertiary and quaternary structure of a protein? Give an example of a pair of amino acids that could give rise to each interaction.
a. Hydrophobic interactions
914
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Domanda del libro di testo
What is meant by the following terms as they apply to protein structure, and what bonds or molecular interactions stabilize that level of structure?
d. Quaternary structure
721
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Domanda del libro di testo
What level of protein structure is determined by the following:
a. Peptide bonds between amino acids?
1051
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