QUESTION 1 You have a crude lysate sample (CL) containing a mixture of six proteins (1, 2, 3, 4, 5, ẞ- galactosidase), and your goal is to obtain purified ẞ-gal. Some characteristics of these proteins are shown in the table below: Protein Alcohol dehydrogenase Carbonic anhydrase Insulin B chain Phosphorylase B Glutamic dehydrogenase B-galactosidase Concentration of ammonium sulfate (AS) required for precipitation Molecular Weight (kDa) Isoelectric point (pl) 45% 38 3.7 80% 28 4.8 65% 4 5.3 20% 98 6.8 30% 49 45% 115 9.5 5.3 You begin your purification by performing an ammonium sulfate (AS) precipitation. You add the appropriate concentration of AS to your CL sample, incubate overnight at 4°C, then centrifuge to generate a supernatant (AS-S) and pellet (AS-P). What concentration of AS will you use to precipitate Alcohol dehydrogenase? ○ 20% 30% 45% 65% 80%

QUESTION 1 You have a crude lysate sample (CL) containing a mixture of six proteins (1, 2, 3, 4, 5, ẞ- galactosidase), and your goal is to obtain purified ẞ-gal. Some characteristics of these proteins are shown in the table below: Protein Alcohol dehydrogenase Carbonic anhydrase Insulin B chain Phosphorylase B Glutamic dehydrogenase B-galactosidase Concentration of ammonium sulfate (AS) required for precipitation Molecular Weight (kDa) Isoelectric point (pl) 45% 38 3.7 80% 28 4.8 65% 4 5.3 20% 98 6.8 30% 49 45% 115 9.5 5.3 You begin your purification by performing an ammonium sulfate (AS) precipitation. You add the appropriate concentration of AS to your CL sample, incubate overnight at 4°C, then centrifuge to generate a supernatant (AS-S) and pellet (AS-P). What concentration of AS will you use to precipitate Alcohol dehydrogenase? ○ 20% 30% 45% 65% 80%

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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