At which step in the contraction cycle an ATP analog ß,?-methylene-ATP is capable of inhibiting muscle contraction. Introduction: Muscle contraction is a cyclic process in which actin and myosin proteins undergo conformational changes with the help of ATP. In the beginning of the cycle myosin head is energized and has bound ADP molecule and an inorganic phosphate group.

Question

Consider the reaction. kp S P kg What effects are produced by an enzyme on the general reaction? AG for the reaction increases. The rate constant for the reverse reaction (kr) increases. The reaction equilibrium is shifted toward the products. The concentration of the reactants is increased. The activation energy for the reaction is lowered. The formation of the transition state is promoted.

Answer 1

Question

Chapter 16, Problem 2P

Interpretation Introduction

To determine:

At which step in the contraction cycle an ATP analog ß,?-methylene-ATP is capable of inhibiting muscle contraction.

Introduction:

Muscle contraction is a cyclic process in which actin and myosin proteins undergo conformational changes with the help of ATP. In the beginning of the cycle myosin head is energized and has bound ADP molecule and an inorganic phosphate group.

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Consider the reaction. kp S P kg What effects are produced by an enzyme on the general reaction? AG for the reaction increases. The rate constant for the reverse reaction (kr) increases. The reaction equilibrium is shifted toward the products. The concentration of the reactants is increased. The activation energy for the reaction is lowered. The formation of the transition state is promoted.

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