After determining the optimum pH, you are now tasked to determine the inhibitory effects of acarbose, a known anti-diabetic drug which acts an inhibitor of alpha-glucosidase, an intestinal enzyme that hydrolyzes starch to release glucose for absorption and energy usage of the body. You studied the rates of the enzyme at different glycogen concentrations with and without the presence of 0.10 mM acarbose. Below is the summary for this procedure. a)  What is the Vmax, in arbitrary units, of the uninhibited reaction (without acarbose)? b) What is the KM , in mM, of the uninhibited reaction (without acarbose)? c) What is the type of inhibition?

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter25: Nitrogen Acquisition And Amino Acid Metabolism
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After determining the optimum pH, you are now tasked to determine the inhibitory effects of acarbose, a known anti-diabetic drug which acts an inhibitor of alpha-glucosidase, an intestinal enzyme that hydrolyzes starch to release glucose for absorption and energy usage of the body. You studied the rates of the enzyme at different glycogen concentrations with and without the presence of 0.10 mM acarbose. Below is the summary for this procedure.

a)  What is the Vmax, in arbitrary units, of the uninhibited reaction (without acarbose)?

b) What is the KM , in mM, of the uninhibited reaction (without acarbose)?

c) What is the type of inhibition?

[glycogen),
Rate, without 0.10 mM acarbose
Rate, with 0.10 mM acarbose
mM
(arbitrary units)
(arbitrary units)
1.0
21.75
12.11
2.0
29.44
16.35
3.0
34.68
20.74
4.0
38.22
24.54
5.0
44.75
28.92
Transcribed Image Text:[glycogen), Rate, without 0.10 mM acarbose Rate, with 0.10 mM acarbose mM (arbitrary units) (arbitrary units) 1.0 21.75 12.11 2.0 29.44 16.35 3.0 34.68 20.74 4.0 38.22 24.54 5.0 44.75 28.92
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