CHEM 262 ORG CHEM EBOOK DIGITAL DELIVERY
8th Edition
ISBN: 2818440043505
Author: Bruice
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 22.9, Problem 17P
Carboxypeptidase A has esterase activity as well as peptidase activity, so it can hydrolyze ester bonds as well as peptide bonds. When carboxypeptidase A hydrolyzes ester bonds. Glu 270 acts as a nucleophilic catalyst instead of a general-base catalyst. Propose a mechanism for the carboxypeptidase A-catalyzed hydrolysis of an ester bond.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Zeolites: environmental applications.
" is
The structure of the bicarbonate (hydrogen carbonate) ion, HCO3-, HCO3
best described as a hybrid of several contributing resonance forms, two of which
are shown here.
HO
:0:
:Ö:
HO
+
Bicarbonate is crucial for the control of body pH (for example, blood pH:
7.4). A more self-indulgent use is in baking soda, where it serves as a
source of CO2 CO₂ 2 gas, which gives bread and pastry their fluffy
constituency.
(i) Draw at least one additional resonance form.
=
(ii) Using curved "electron-pushing" arrows, show how these Lewis structures may
be interconverted by movement of electron pairs. (iii) Determine which form or
forms will be the major contributor(s) to the real structure of bicarbonate,
explaining your answer on the basis of the criteria in Section 1-5.
Which of these is the best use of a volumetric flask?
measuring how much liquid it contains
delivering a precise amount of liquid to another container
holding solutions
making solutions of precise concentration
Chapter 22 Solutions
CHEM 262 ORG CHEM EBOOK DIGITAL DELIVERY
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- You're competing on a Great British television game show, and you need to bake a cake. The quantity for each ingredient is given in grams, but you haven't been given a kitchen scale. Which of these properties would correlate with the mass of a baking ingredient like eggs or milk? Check all that apply. depth of color viscosity volume densityarrow_forwardDraw a Lewis structure for each of the following species. Again, assign charges where appropriate. a. H-H¯ b. CH3-CH3 c. CH3+CH3 d. CH3 CH3 e. CH3NH3+CH3NH3 f. CH30-CH3O¯ g. CH2CH2 - h. HC2-(HCC) HC2 (HCC) i. H202×(HOOH) H₂O₂ (HOOH) Nortonarrow_forwardIs molecule 6 an enantiomer?arrow_forward
- Show work. Don't give Ai generated solutionarrow_forwardCheck the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. Molecule 1 Molecule 2 Molecule 3 ----||| Molecule 4 Molecule 5 Molecule 6 none of the above mm..arrow_forwardShow work. don't give Ai generated solutionarrow_forward
- Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. Molecule 1 Molecule 2 Molecule 3 ----||| Molecule 4 Molecule 5 Molecule 6 none of the above mm..arrow_forwardUse the vapor-liquid equilibrium data at 1.0 atm. for methanol-water (Table 2-8 ) for the following: If the methanol vapor mole fraction is 0.600, what is the methanol liquid mole fraction? Is there an azeotrope in the methanol-water system at a pressure of 1.0 atmospheres? If water liquid mole fraction is 0.350, what is the water vapor mole fraction? What are the K values of methanol and of water at a methanol mole fraction in the liquid of 0.200? What is the relative volatility αM-W at a methanol mole fraction in the liquid of 0.200?arrow_forwardCheck the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. || |II***** Molecule 1 | Molecule 4 none of the above Molecule 2 Molecule 3 Х mm... C ---||| *** Molecule 5 Molecule 6arrow_forward
- is SiBr4 Silicon (IV) tetra Bromine? is KClO2 potassium dihypochlorite ?arrow_forward"יוון HO" Br CI Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table. Molecule 1 Molecule 2 Molecule 3 Br Br Br HO OH H CI OH ✓ Molecule 4 Molecule 5 Molecule 6 CI Br יייון H Br OH OH CI Br ☐ none of the above × Garrow_forwardUS2 Would this be Uranium (II) diSulfide?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
DIGESTER-35 | VITAMINS AND THEIR RELATED COENZYMES| GPAT | NIPER | PHARMACIST| DI; Author: GPAT DISCUSSION CENTER;https://www.youtube.com/watch?v=CGrdNYmho0s;License: Standard YouTube License, CC-BY