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Draw the peptide formed between asparagine and histidine. H,N-CH-ċ-OH H,N- -CH—С—он CH2 ČH2 N° NH2 -NH

Draw the peptide formed between asparagine and histidine. H,N-CH-ċ-OH H,N- -CH—С—он CH2 ČH2 N° NH2 -NH

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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### Formation of a Peptide Between Asparagine and Histidine #### Reaction Overview In this reaction, we are presented with the task of drawing the peptide formed between asparagine (left structure) and histidine (right structure). The formation of a peptide bond involves the joining of the carboxyl group (-COOH) of one amino acid to the amino group (-NH2) of another amino acid, resulting in the release of a water molecule (H₂O). #### Structures of Reactants 1. **Asparagine:** - Molecular formula: \( \text{C}_4\text{H}_8\text{N}_2\text{O}_3 \) - Structure: Contains an amino group (\( \text{NH}_2 \)), a carboxyl group (\( \text{COOH} \)), and a side chain with an amide group (\( \text{CH}_2\text{CONH}_2 \)). 2. **Histidine:** - Molecular formula: \( \text{C}_6\text{H}_9\text{N}_3\text{O}_2 \) - Structure: Contains an amino group (\( \text{NH}_2 \)), a carboxyl group (\( \text{COOH} \)), and a side chain with an imidazole ring (\( \text{CH}_2\text{C}_3\text{N}_2\text{H}_3 \)). #### Steps: 1. Identify the carboxyl group (-COOH) of asparagine and the amino group (-NH2) of histidine. 2. Form the peptide bond by removing a water molecule (H₂O). 3. The resulting structure will consist of the remaining components of asparagine and histidine connected by a peptide (amide) bond. #### Peptide Bond Formation - The peptide bond is an amide bond between the carbon atom of the carboxyl group of one amino acid and the nitrogen atom of the amino group of the adjacent amino acid. - The result is a dipeptide consisting of residues from both asparagine and histidine. ### Diagrams Explanation: 1. **Initial Structures:** - The first diagram shows the structural formulas of asparagine and histidine. - Asparagine (left structure) has a carboxyl group capable of forming a peptide
Transcribed Image Text:### Formation of a Peptide Between Asparagine and Histidine #### Reaction Overview In this reaction, we are presented with the task of drawing the peptide formed between asparagine (left structure) and histidine (right structure). The formation of a peptide bond involves the joining of the carboxyl group (-COOH) of one amino acid to the amino group (-NH2) of another amino acid, resulting in the release of a water molecule (H₂O). #### Structures of Reactants 1. **Asparagine:** - Molecular formula: \( \text{C}_4\text{H}_8\text{N}_2\text{O}_3 \) - Structure: Contains an amino group (\( \text{NH}_2 \)), a carboxyl group (\( \text{COOH} \)), and a side chain with an amide group (\( \text{CH}_2\text{CONH}_2 \)). 2. **Histidine:** - Molecular formula: \( \text{C}_6\text{H}_9\text{N}_3\text{O}_2 \) - Structure: Contains an amino group (\( \text{NH}_2 \)), a carboxyl group (\( \text{COOH} \)), and a side chain with an imidazole ring (\( \text{CH}_2\text{C}_3\text{N}_2\text{H}_3 \)). #### Steps: 1. Identify the carboxyl group (-COOH) of asparagine and the amino group (-NH2) of histidine. 2. Form the peptide bond by removing a water molecule (H₂O). 3. The resulting structure will consist of the remaining components of asparagine and histidine connected by a peptide (amide) bond. #### Peptide Bond Formation - The peptide bond is an amide bond between the carbon atom of the carboxyl group of one amino acid and the nitrogen atom of the amino group of the adjacent amino acid. - The result is a dipeptide consisting of residues from both asparagine and histidine. ### Diagrams Explanation: 1. **Initial Structures:** - The first diagram shows the structural formulas of asparagine and histidine. - Asparagine (left structure) has a carboxyl group capable of forming a peptide
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