To understand the entire glycolytic pathways better, kindly complete the table below Steps Structural Formula Enzyme, activator and coenzyme required Structural formula of the product Is the reaction reversible or irreversible?
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To understand the entire glycolytic pathways better, kindly complete the table below
|
Steps |
Structural Formula |
Enzyme, activator and coenzyme required |
Structural formula of the product |
Is the reaction reversible or irreversible? |
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- Based on your knowledge of the structure of NAD+ and an assumption that coenzyme dissociation is the rate limiting step of the alcohol dehydrogenase mechanism, hypothesize why a N249W mutation at the coenzyme binding site would increase the rate of catalysis.Using the ActiveModel for enoyl-CoA dehydratase, give an example of a case in which conserved residues in slightly different positions can change the catalytic rate of reaction.Write the ten reactions of the glycolytic pathway, naming all enzymes and providing the structural formulas of their substrates and products.
- Suggest the possible class of enzyme (or name of enzyme) for each of theenzyme-catalyzed reactions below. Briefly explain your answer.create a detailed flow chart or diagram that will illustrate all the important features of the glycolytic pathway. I want you to place in your flow chart or diagram the following important information like: 1. the reactants and products of each step, 2. enzymes involved in each step, 3. important by-products generated in some steps, 4. type of the reaction of each step, 5. and the outline of the two stages of the pathway. Also, discuss briefly (4 sentences) how Galactose and Fructose enter the glycolytic pathway.Lactate can be converted into pyruvate by the enzyme lactate dehydrogenase and the coenzyme NAD+. Write the reaction in the standard biochemical format, using a curved arrow to show the involvement of NAD+.
- NAD+ coenzyme is required for the reaction of ethanol in the liver to ethanal and NADH. Write down the metabolic reaction below:In Bacillus subtilis, threonine is metabolized by the following sequence of reactions: (a) oxidation; (b) decarboxylation;(c) transamination; and (d) oxidation to produce pyruvate. Outline this sequence of steps, show the structures of thesubstances, use abbreviations for the cofactors, and show any enzyme-bound coenzymes. What type of enzyme bound intermediate is likely for reaction (d)?What are the possivble oxidation product of catalase using H2O2 as the substrate? Explain in 1-3 sentences
- The comparison of the active site geometries of chymotrypsin and subtilisin under the assumption that their similarities have catalytic signifi cance has led to greater mechanistic understanding of both these enzymes. Discuss the validity of this strategy.Give the systematic names and the first three digits in the E.C. classifications of the enzymes catalysing the following reactions:Several names are compatible with standard nomenclature for the enzyme that catalyzes the reaction shown in the figure. However, the assigned name is based specifically based on its substrate and its coenzyme. What is that name?