Answer the following questions about chymotrypsin using the active site diagram below. Sers7 R. :0. HN Asna7 HN R SHIS128 NH, Asp'115 6. Fill in the electron pushing arrows on the diagram above to show the first step of the chymotrypsin mechanism. 7. What types of rate enhancement are observed in the first step of the chymotrypsin mechanism show: in question 6?
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- Briefly explain the role of the oxyanion hole for the catalysis of chymotrypsin.Briefly describe the role of nucleophilic catalysis in the mechanism of the chymotrypsin reaction.Which of the following statements is true about the chymotrypsin reaction? 1. The catalytic triad at the active site is formed by three residues: His, Gly, and Ser 2. When the substrate is p-Nitrophenylacetate, the rate-limiting step is the release of p-Nitrophenolate. 3. During the reaction, LBHB forms when the proton is donated to His from Ser or water. 4. The chymotrypsin reaction involves “only” specific acid-base catalysis 5. The “oxyanion hole” is formed by the amide nitrogens of Ser and Glu
- Describe the mechanism of a-chymotrypsin. Explain the roles of constituents of the catalytic triad, their modes of catalysis, and the significance of the oxyanion hole in the catalysis.The mechanism involved in the reaction catalyzed by phosphoglyceromutase is known to involve a phosphorylatedenzyme intermediate. If 3-phosphoglycerate is radioactively labeledwith 32P, the product of the reaction, 2-phosphoglycerate, does nothave any radioactive label. Design a mechanism to explain these facts.Discuss the relationship between redox potentials E0’ and the organization of the components of the electron transport chain. Be specific, i.e., use data/actual values to back up your discussion. a) What are the values of E0’ for all the components of the ETS? b)How are the E0’ related to ∆G values? c) How do the values of E0’ vary among the participants in the ETS relative to their position in the ETS?
- Mechanisms of catalysis : 2.1 Acid-base catalysis summary + example 2.2 Electrostatic catalysis summary + example 2.3 Covalent catalysis summary + example 2.4 Enzymen catalysis summary 2.5 Mechanism of chymotrypsin summary. These mechanisms involve several of the above-mentioned catalyses. In these summaries, do not just draw a diagram of the proposed mechanisms. It is more important to understand which reaction steps involve what kind of catalysis and how these help to reduce the activation energy needed for the reaction (e.g. a step in the reaction mechanism could be electrostatic catalysis to stabilise the transitions state) 2.6 Mechanism of lysozyme summary. These mechanisms involve several of the above-mentioned catalyses. In these summaries, do not just draw a diagram of the proposed mechanisms. It is more important to understand which reaction steps involve what kind of catalysis and how these help to reduce the activation energy needed for the reaction (e.g.…(a) A simplistic interpretation of the Q cycle would predict that the proton pumping efficiency of cytochrome bc1 would be reduced by no more than 50% in the presence of saturating amounts of antimycin A. Explain. (b) Indicate why cytochrome bc1 is nearly 100% inhibited by antimycin A.Aspartate transcarbamoylase, which is necessary for CTP production, is an essential enzyme for the human body. In the below graph, which line represents the rate of the reaction catalyzes by Aspartate transcarbamoylase? Explain.
- Name: Hendric Nduwuba DNP and Cellular Respiration Summary https://www.youtube.com/watch?v=eLtRan2qFx0 Your assignment today is to summarize in two paragraphs (8 sentences total) the effects of dinitrophenol (DNP) on the human body. Make sure you explain what DNP is, the stages of cellular respiration, and how DNP alters the metabolism of the person using it (side effects). The following vocabulary terms need to be used: cellular respiration, adenosine triphosphate, and dinitrophenol (DNP). Your objective is to describe the role of ATP in cellular respiration in order to explain how DNP affects the rate of metabolism. The first paragraph is an introduction to the summary and the second paragraph is an explanation of the main idea. You will be graded on this criteria: main idea, explanation of cellular respiration, explanation of DNP, and paragraph structure.Most individuals with genetic defects in oxidative phosphorylation are found to have relatively high concentrations of alanine in their blood. how this in biochemical terms? please help :)Lysozyme catalyzes a "bi-bi" reaction, which means there are (how many) reactants and (how many) products. List, in order, the reactants that bind and the products that are released during a lysozyme-catalyzed reaction cycle -- be succinct but be specific. 1. First reactant = 2. First product = 3. Second reactant = 4. Second product %3D