'Reversible inhibitors' diaporamas de présentation

Cholinergic agonists & Cholinergic antagonists Adrenergic agonists & Adrenergic antagonists

Cholinergic agonists & Cholinergic antagonists Adrenergic agonists & Adrenergic antagonists. Part I. Cholinergic agonists. 1. direct cholinergic agonists 2. cholinesterase inhibitors .

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Antidepressants ? other drugs used in affective disorders

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Chapter 5

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Antidepressants ? other drugs used in affective disorders

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Entropy

Entropy. Entropy is the quantitative measure of disorder in a system. or Entropy is a thermodynamic property that can be used to determine the energy not available for work in a thermodynamic process. Enthalpy.

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Lecture 3: Factors affecting enzyme activity: [substrate] and inhibitors

Lecture 3: Factors affecting enzyme activity: [substrate] and inhibitors. How can we mathematically describe catalysis?. Lets start with a relatively simple scheme: (1) enzyme (E) binds substrate (S), forming an enzyme-substrate complex (ES)

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Chapter 5 (part 3)

Chapter 5 (part 3). Enzyme Kinetics (cont.). k 1. k cat. E + S ES E + P. k -1. Michaelis-Menton. V max K m K cat K cat /K m. Vo = Vmax [S] Km + [S]. V max K m k cat k cat /K m. How do you get values for V max , K m and k cat ?.

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Receptors and Drug Action

Receptors and Drug Action. Receptors: Specific areas of cell membranes (proteins, glycoproteins)* When bound to ligand , positive or negative biological responce. Few ex. of free receptors in cytoplasma. *. Drugs that do act on receptors:. Drugs that do not act on receptors:.

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Receptors and Drug Action

Receptors and Drug Action. Receptors: Specific areas of cell membranes (proteins, glycoproteins)* When bound to ligand , positive or negative biological responce. Few ex. of free receptors in cytoplasma. Drugs that do act on receptors:. Drugs that do not act on receptors:.

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Enzymes

Enzymes. Enzymes are complex chemicals that control reactions in living cells. They are biochemical catalysts speeding up reactions that would otherwise happen too slowly. The chemical which an enzyme works on is called its substrate .

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Enzyme Inhibition

Enzyme Inhibition. C483 Spring 2013. Questions. 1. An inhibitor binds to a site other than the active site of the enzyme. Which statement below correlates with this observation? A ) It must be a competitive inhibitor. B ) The inhibition must be irreversible.

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Enzyme Activity

Enzyme Activity. The properties of enzymes related to their tertiary structure.The effects of change in temperature,pH,substrate concentration,and competitive and non-competitive inhibition on the rate of enzyme action.

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Topic

Topic. Proposed project: neutrotoxin Fasciulin Found in snakes such as the Green and Black Mamba. Explanation. Fasciculin is known to inhibit reversibly mammalian and fish acetylcholinesterases at picomolar concentrations. What is a toxin? Find more about acetylcholinesterases .

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