A certain protein is used to activate myosin. If the protein is treated with β-mercaptoethanol, it will not activate myosin. What can you say about the structure of this protein?- The peptide is denatured by β-mercaptoethanol- The peptide does not have a thermodynamically stable configuration- The peptide contains more than one distinct chain- The peptide contains disulfide bonds required for activity

Answered: A certain protein is used to activate…

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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Question

A certain protein is used to activate myosin. If the protein is treated with β-mercaptoethanol, it will not activate myosin. What can you say about the structure of this protein?

- The peptide is denatured by β-mercaptoethanol
- The peptide does not have a thermodynamically stable configuration
- The peptide contains more than one distinct chain
- The peptide contains disulfide bonds required for activity

Expert Solution

Step 1

Proteins are biomolecules made up of amino acid chains arranged in three-dimensional and four-dimensional configurations. Myosins are motor proteins involved in muscle contraction and other motility-related processes. It interacts with actin filaments, hydrolyzes ATP, and converts chemical energy to mechanical energy.

$β$ -mercaptoethanol is a chemical reagent that can act as a biological antioxidant. It is used as a reducing agent.