Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134066639
Author: Bruice
Publisher: PEARSON
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Textbook Question
Chapter 22.10, Problem 19P
Explain why serine proteases do not catalyze hydrolysis if the amino acid at the hydrolysis site is a amino acid. Trypsin, for example, cleaves on the C-side of L-Arg and L-Lys, but not on the C-side of D-Arg and D-Lys.
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Explain why serine proteases do not catalyze hydrolysis if the amino acid at the hydrolysis site is a d-amino acid. Trypsin, for example, cleaves on the C-side of L-Arg and L-Lys, but not on the C-side of D-Arg and D-Lys.
Draw three-dimensional representations of the following amino acids.(a) l-phenylalanine (b) l-histidine (c) d-serine (d) l-tryptophanDraw three-dimensional representations of the following amino acids.(a) l-phenylalanine (b) l-histidine (c) d-serine (d) l-tryptophan
Draw the amino acids and peptide fragments formed when the decapeptide A–P–F–L–K–W–S–G–R–G is treated with each reagent or enzyme: (a) chymotrypsin; 8 pt helvetica roman (b) trypsin; (c) carboxypeptidase; (d) C6H5N = C = S.
Chapter 22 Solutions
Organic Chemistry (8th Edition)
Ch. 22.2 - Compare each of the mechanisms listed here with...Ch. 22.2 - Prob. 3PCh. 22.2 - Prob. 4PCh. 22.3 - a. Draw the mechanism for the following reaction...Ch. 22.5 - Prob. 7PCh. 22.5 - Propose a mechanism for the Co2+ catalyzed...Ch. 22.6 - Prob. 9PCh. 22.7 - Prob. 10PCh. 22.7 - Prob. 12PCh. 22.7 - Prob. 13P
Ch. 22.9 - Which of the following amino acid side chains can...Ch. 22.9 - Which of the following C-terminal peptide bonds is...Ch. 22.9 - Carboxypeptidase A has esterase activity as well...Ch. 22.10 - Arginine and lysine side chains fit into trypsins...Ch. 22.10 - Explain why serine proteases do not catalyze...Ch. 22.11 - If H2 18O is used in the hydrolysis reaction...Ch. 22.11 - Draw the pH-activity profile for an enzyme that...Ch. 22.12 - The pHactivity profile for glucose-6-phosphate...Ch. 22.12 - Prob. 23PCh. 22.13 - Draw the mechanism for the hydroxide ion-catalyzed...Ch. 22.13 - What advantage does the enzyme gain by forming an...Ch. 22.13 - Prob. 26PCh. 22.13 - Prob. 27PCh. 22.13 - Aldolase shows no activity if it is incubated with...Ch. 22 - Which of the following parameters would be...Ch. 22 - Prob. 29PCh. 22 - Prob. 30PCh. 22 - Prob. 31PCh. 22 - Indicate the type of catalysis that is occurring...Ch. 22 - The deuterium kinetic isotope effect (KH2O/KD2O)...Ch. 22 - Prob. 34PCh. 22 - Co2+ catalyzes the hydrolysis of the lactam shown...Ch. 22 - there are two kinds of aldolases. Class I...Ch. 22 - Prob. 37PCh. 22 - The hydrolysis of the ester shown here is...Ch. 22 - Prob. 39PCh. 22 - At pH = 12, the rate of hydrolysis of ester A is...Ch. 22 - 2-Acetoxycyclohexyl tosylate reacts with acetate...Ch. 22 - Proof that an imine was formed between aldolase...Ch. 22 - Prob. 43PCh. 22 - a. Explain why the alkyl halide shown here reacts...Ch. 22 - Triosephosphate isomerase (TIM) catalyzes the...
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- Calculate the attraction between an arginine and glutamate at pH 7 under thefollowing conditions:a) in air, spaced 5 Å apartb) in water, spaced 5 Å apartc) in ethanol, spaced 5 Å apartarrow_forwardDraw three-dimensional representations of the following amino acids. Explain their structures. (a) L-phenylalanine (b) L-histidine (c) D-serine (d) L-tryptophanarrow_forward1. Draw the structure of each peptide. Label the N-terminal and C-terminal amino acids and allamide bonds.a. Val–Glu b. Gly–His–Leu c. M–A–T–Tarrow_forward
- (a) Draw the structure of the two possible dipeptides that can be formed by combining valine and phenylalanine. (b) In each dipeptide, label the N- and C-terminal amino acids. (c) Name each peptide using three-letter symbols.arrow_forwardDraw three-dimensional representations of the following amino acids. l-histidinearrow_forwardThe vast majority of serine protease inhibitors are competitive inhibitors. Which of the following statements is true? The Vmax of a reaction decreases in the presence of a competitive inhibitor. Km increases with a competitive inhibitor. A competitive inhibitor can bind to a site adjacent to the active site. Competitive inhibition cannot be overcome by the addition of large amounts of substrate.arrow_forward
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