Calculating the molecular weight and subunit organization of a protein from its metal content theelement molybdenum (atomic weight 95.95) constitutes 0.08% of the weight of nitrate reductase. Ifthe molecular weight of nitrate reductase is 240,000, what is its likely quaternary structure?

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Answered: Calculating the molecular weight and…

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter22: Proteins

Section: Chapter Questions

Problem 22.68P

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Compound P was discovered by a scientist. She discovered that P is a tripeptide that is optically active and has the molecular formula C21H25N3O5. As a part of the validation process, she tested compound P on different scientific tests. When compound P is reacted with sodium hydroxide its produced salt Q, C21H25N3NAO5 as a major product. Compound P also reacted with sodium bicarbonate to produced salt R as a major product and two side products. Both salts have a similar molecular formula. The reaction of compound P with thionyl chloride produced compound S, C21H23Cl½N3O3. Compound T is formed when compound P reacted with alcohol U, C4H100. Identify the possible structural formulae for compounds P, Q, R, S, and T. Label all peptide bonds for compound P. Predict one (1) of the possible structural formulae of amino acid obtained from compound P. How would you distinguish between compound S and compound T?
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Calculating the molecular weight and subunit organization of a protein from its metal content the element molybdenum (atomic weight 95.95) constitutes 0.08% of the weight of nitrate reductase. If the molecular weight of nitrate reductase is 240,000, what is its likely quaternary structure?