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QUESTION

1. If the kcat for enolase in E. coli is 13 200/min, what would be the Vmax value if 1.92 uM enolase was present in the cell in mM/sec?

1. If the kcat for enolase in E. coli is 13 200/min, what would be the Vmax value if 1.92 uM enolase was present in the cell in mM/sec?

2. If the concentration of 2-phosphoglycerate is 1/30 of the Km value of enolase (2.62 uM), what would be the rate of the reaction?

3.

[S]      Vo      Vo     Vo

0.33  1.65  1.05 0.79

0.5   2.13  1.43 1.02

1      2.99   2.22 1.43

2      3.72  3.08  1.79

5       4       3.8     2

a) Generate a single L-B plot for all the enzymatic reactions.

b) Using the L-B plot you created in a), determine the Km and Vmax for all the reactions.

c) Determine the type of inhibition for both inhibitors B and C. Explain how you arrived at your conclusions. (2 marks)

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