Domanda del libro di testo
Draw the condensed structural formula for each of the following peptides, and give its three-letter and one-letter abbreviations:
b. threonylleucine
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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 11a
Draw the condensed structural formula for each of the following peptides, and give its three-letter and one-letter abbreviations:
a. alanylcysteine
Guida verificata passo dopo passo1
Step 1: Understand the problem. The task is to draw the condensed structural formula for the dipeptide alanylcysteine, which is formed by linking the amino acids alanine and cysteine. Additionally, provide the three-letter and one-letter abbreviations for this peptide.
Step 2: Recall the structure of alanine. Alanine (Ala) is a nonpolar amino acid with the side chain -CH₃. Its general structure is NH₂-CH(CH₃)-COOH.
Step 3: Recall the structure of cysteine. Cysteine (Cys) is a polar amino acid with a thiol (-SH) group in its side chain. Its general structure is NH₂-CH(CH₂SH)-COOH.
Step 4: Form the peptide bond. A peptide bond is formed between the carboxyl group (-COOH) of alanine and the amino group (-NH₂) of cysteine. This involves the removal of a water molecule (H₂O) during the condensation reaction. The resulting structure will have the following condensed formula: NH₂-CH(CH₃)-CO-NH-CH(CH₂SH)-COOH.
Step 5: Provide the abbreviations. The three-letter abbreviation for alanylcysteine is Ala-Cys, and the one-letter abbreviation is AC.
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Peptide Structure
Peptides are short chains of amino acids linked by peptide bonds. The structure of a peptide is determined by the sequence of its constituent amino acids, which influences its properties and functions. Understanding how to represent peptides structurally, including their condensed formulas, is essential for biochemistry and molecular biology.
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Percorso guidato
3:07
Peptides Concept 1
Amino Acid Abbreviations
Amino acids are the building blocks of peptides and proteins, each having a unique three-letter and one-letter abbreviation. For example, alanine is abbreviated as 'Ala' (three-letter) and 'A' (one-letter), while cysteine is 'Cys' and 'C'. Familiarity with these abbreviations is crucial for efficiently communicating and interpreting peptide sequences.
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Percorso guidato
3:03Amino Acid Catabolism: Amino Group Example 2
Condensed Structural Formula
A condensed structural formula provides a simplified representation of a molecule, showing the arrangement of atoms without depicting all bonds explicitly. In the context of peptides, it illustrates how amino acids are connected, allowing for a quick understanding of the molecule's structure. Mastery of this notation is important for visualizing and analyzing chemical compounds.
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Percorso guidato
1:53Condensed Formula Concept 1
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Give the name for the amino acid represented by each of the following abbreviations:
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Draw the condensed structural formula for each of the following peptides, and give its three-letter and one-letter abbreviations:
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Draw the condensed structural formula for each of the following peptides, and give its three-letter and one-letter abbreviations:
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