Two methods that could be applied to the study of hydrogen-deuterium exchange rates in proteins should be mentioned and explained. Concept introduction: Hydrogen-deuterium exchange is a reaction by which a covalently bonded hydrogen atoms are replaced by deuterium atoms. This method is commonly used for the solvent accessibility of proteins and thereby determining the tertiary structure of the protein. The protons on amide groups are exchangeable.

Question

From the reaction data below, determine whether the reaction is first order or second order and calculate the rate constant. Time (s) 0 Reactant (mM) 5.4 1 4.6 2 3.9 3 3.2 4 2.7 5 2.3 Only a plot of In[reactant] versus t gives a straight line, so the reaction is first order . The negative of the slope, k, is 0.171

Answer 1

Question

Chapter 3, Problem 25P

Interpretation Introduction

Interpretation:

Two methods that could be applied to the study of hydrogen-deuterium exchange rates in proteins should be mentioned and explained.

Concept introduction:

Hydrogen-deuterium exchange is a reaction by which a covalently bonded hydrogen atoms are replaced by deuterium atoms. This method is commonly used for the solvent accessibility of proteins and thereby determining the tertiary structure of the protein. The protons on amide groups are exchangeable.

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