Protein phosphatase 1 (PP1) helps regulate cell division and is a possible drug target to treat certain types of cancer. The enzyme catalyzes the hydrolysis of a phosphate group from myelin basic protein (MBP). The activity of PP1 was measured in the presence and absence of the inhibitor phosphatidic acid (PA). [MBP] (mg-mL-1) 0.010 0.015 0.025 0.050 Vo without PA (nmol-mL-¹ min-¹) Uncompetitive Noncompetitive Mixed inhibition Competitive 0.0209 0.0355 0.0419 0.0838 Vo with PA (nmol-ml-1.min-¹) 0.00381 Use the data in the table to construct a Lineweaver-Burk plot. What type of inhibitor is phosphatidic acid? 0.00620 0.00931 0.01400

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
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Protein phosphatase 1 (PP1) helps regulate cell division and is a possible drug target to treat certain types of cancer. The enzyme catalyzes the hydrolysis of a phosphate group from myelin basic protein (MBP). The activity of
PP1 was measured in the presence and absence of the inhibitor phosphatidic acid (PA).
[MBP]
(mg-mL-¹)
0.010
0.015
0.025
0.050
Vo without PA
(nmol-mL-¹ min-¹)
0.0209
0.0355
0.0419
0.0838
Use the data in the table to construct a Lineweaver-Burk plot. What type of inhibitor is phosphatidic acid?
Uncompetitive
Noncompetitive
Mixed inhibition
Competitive
Vo with PA
(nmol-mL-¹ min-¹)
0.00381
0.00620
0.00931
0.01400
Transcribed Image Text:Protein phosphatase 1 (PP1) helps regulate cell division and is a possible drug target to treat certain types of cancer. The enzyme catalyzes the hydrolysis of a phosphate group from myelin basic protein (MBP). The activity of PP1 was measured in the presence and absence of the inhibitor phosphatidic acid (PA). [MBP] (mg-mL-¹) 0.010 0.015 0.025 0.050 Vo without PA (nmol-mL-¹ min-¹) 0.0209 0.0355 0.0419 0.0838 Use the data in the table to construct a Lineweaver-Burk plot. What type of inhibitor is phosphatidic acid? Uncompetitive Noncompetitive Mixed inhibition Competitive Vo with PA (nmol-mL-¹ min-¹) 0.00381 0.00620 0.00931 0.01400
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