Domanda del libro di testo
Would you expect to find this segment at the center or at the surface of a protein? Why?
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Ch.16 Amino Acids, Proteins, and Enzymes
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353
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TOC.tableOfContents
- Ch.1 Chemistry in Our Lives11
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy54
- Ch.4 Atoms and Elements51
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions41
- Ch.8 Gases29
- Ch.9 Solutions51
- Ch.10 Acids and Bases and Equilibrium65
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons78
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones83
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides90
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis83
- Ch.18 Metabolic Pathways and ATP Production67
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353Non è quello che usi tu?Cambia libro di testo
Capitolo 16, Problema 60a
What type of interaction would you expect between the following in a tertiary structure?
a. threonine and glutamine
Guida verificata passo dopo passo1
Identify the functional groups present in the side chains of threonine and glutamine. Threonine has a hydroxyl (-OH) group, and glutamine has an amide (-CONH2) group.
Recognize that both threonine and glutamine are polar amino acids due to their side chains containing polar functional groups.
Understand that polar side chains can interact through hydrogen bonding. The hydroxyl group of threonine can act as a hydrogen bond donor or acceptor, while the amide group of glutamine can also participate in hydrogen bonding.
Conclude that the interaction between threonine and glutamine in a tertiary structure is likely to be a hydrogen bond, which stabilizes the protein's three-dimensional shape.
Note that these interactions are important for maintaining the overall structure and function of the protein in its folded state.
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Amino Acid Properties
Threonine and glutamine are both polar amino acids, which means they have side chains that can form hydrogen bonds with water. This property influences their interactions in a protein's tertiary structure, as polar amino acids tend to be found on the surface of proteins, interacting with the aqueous environment.
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Percorso guidato
3:03
Amino Acid Catabolism: Amino Group Example 2
Hydrogen Bonding
Hydrogen bonding is a key interaction in protein structures, occurring when a hydrogen atom covalently bonded to an electronegative atom (like oxygen or nitrogen) is attracted to another electronegative atom. In the case of threonine and glutamine, their hydroxyl (-OH) and amine (-NH2) groups can form hydrogen bonds, stabilizing the protein's tertiary structure.
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Percorso guidato
1:22Hydrogenation Reactions Concept 1
Tertiary Structure of Proteins
The tertiary structure of a protein refers to its three-dimensional shape formed by the folding of its polypeptide chain. This structure is stabilized by various interactions, including hydrogen bonds, ionic bonds, and hydrophobic interactions, which are crucial for the protein's functionality and interaction with other molecules.
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Percorso guidato
2:07Tertiary Protein Structure Concept 1
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