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Please draw the complete, detailed mechanism of the reaction step by step.

Please draw the complete, detailed mechanism of the reaction step by step.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please draw the complete, detailed mechanism of the reaction step by step.

**Disulfide Bridge Formation in Peptides** Peptides can maintain their three-dimensional structure with the assistance of disulfide bridges. Of the 20 amino acids found in proteins, only cysteine contains a thiol group. To form a disulfide bridge, an oxidant like Br₂ can be utilized. Below is an example, where you need to draw the complete, detailed mechanism of the di-cysteine disulfide bridge formation. **Diagram Explanation:** 1. **Reactants:** - Two cysteine molecules are depicted. - Each cysteine has a thiol group (–SH). 2. **Oxidizing Agent:** - Br₂ (Bromine) is used as the oxidant. 3. **Products:** - The disulfide bond formation is shown where two cysteines are linked by an S–S bond. - The resulting structure has the two cysteines connected, forming a bridge. - HBr (Hydrogen bromide) is released as a byproduct. This mechanism showcases the chemical transformation needed to form disulfide linkages in proteins.
Transcribed Image Text:**Disulfide Bridge Formation in Peptides** Peptides can maintain their three-dimensional structure with the assistance of disulfide bridges. Of the 20 amino acids found in proteins, only cysteine contains a thiol group. To form a disulfide bridge, an oxidant like Br₂ can be utilized. Below is an example, where you need to draw the complete, detailed mechanism of the di-cysteine disulfide bridge formation. **Diagram Explanation:** 1. **Reactants:** - Two cysteine molecules are depicted. - Each cysteine has a thiol group (–SH). 2. **Oxidizing Agent:** - Br₂ (Bromine) is used as the oxidant. 3. **Products:** - The disulfide bond formation is shown where two cysteines are linked by an S–S bond. - The resulting structure has the two cysteines connected, forming a bridge. - HBr (Hydrogen bromide) is released as a byproduct. This mechanism showcases the chemical transformation needed to form disulfide linkages in proteins.
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