Package: Organic Chemistry With Connect 2-semester Access Card
4th Edition
ISBN: 9781259671838
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Chapter 29, Problem 29.74P
The anti-obesity drug orlistat works by irreversibly inhibiting pancreatic lipase, an enzyme responsible for the hydrolysis of triacylglycerols in the intestines, so they are excreted without
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Chorismate mutase is an enzyme that promotes a pericyclic reaction by forcing the substrate to assume the conformation needed for the reaction. The product of the pericyclic reaction is prephenate that is subsequently converted into the amino acids phenylalanine and tyrosine. What kind of a pericyclic reaction does chorismate mutase catalyze?
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.
The shown image is a reaction diagram for the hydrolysis of peptide bonds. Appropriately substituted phosphonates (structure shown above) were successfully designed as strong inhibitors for proteolytic enzymes. Â Explain why this strategy was successful.
Note that the lengths of P–O bonds in phosphonates are significantly longer than the corresponding C–O bonds.
Chapter 29 Solutions
Package: Organic Chemistry With Connect 2-semester Access Card
Ch. 29 - Prob. 29.1PCh. 29 - Problem 29.2
What form exists at the isoelectric...Ch. 29 - Problem 29.3
Explain why the of the group of an...Ch. 29 - Problem 29.5
What -halo carbonyl compound is...Ch. 29 - Problem 29.6
The enolate derived from diethyl...Ch. 29 - Problem 29.7
What amino acid is formed when is...Ch. 29 - Problem 29.8
What aldehyde is needed to synthesize...Ch. 29 - Prob. 29.8PCh. 29 - Prob. 29.9PCh. 29 - Prob. 29.10P
Ch. 29 - Prob. 29.11PCh. 29 - Problem 29.13
What alkene is needed to synthesize...Ch. 29 - Problem 29.14
Draw the structure of each peptide....Ch. 29 - Name each peptide using both the one-letter and...Ch. 29 - Prob. 29.15PCh. 29 - Prob. 29.16PCh. 29 - Problem 29.18
Glutathione, a powerful antioxidant...Ch. 29 - Problem 29.19
Draw the structure of the...Ch. 29 - Problem 29.20
Give the amino acid sequence of an...Ch. 29 - a What products are formed when each peptide is...Ch. 29 - Prob. 29.21PCh. 29 - Devise a synthesis of each peptide from amino acid...Ch. 29 - Devise a synthesis of the following dipeptide from...Ch. 29 - Prob. 29.24PCh. 29 - Consider two molecules of a tetrapeptide composed...Ch. 29 - What types of stabilizing interactions exist...Ch. 29 - Prob. 29.27PCh. 29 - Draw the product formed when the following amino...Ch. 29 - With reference to the following peptide: a...Ch. 29 - Devise a synthesis of the following dipeptide from...Ch. 29 - Prob. 29.31PCh. 29 - Prob. 29.32PCh. 29 - Histidine is classified as a basic amino acid...Ch. 29 - Tryptophan is not classified as a basic amino acid...Ch. 29 - What is the structure of each amino acid at its...Ch. 29 - To calculate the isoelectric point of amino acids...Ch. 29 - What is the predominant form of each of the...Ch. 29 - 29.37 What is the predominant form of each of the...Ch. 29 - a. Draw the structure of the tripeptide A–A–A, and...Ch. 29 - Draw the organic product formed when the amino...Ch. 29 - 29.39 Draw the organic products formed in each...Ch. 29 - 29.40 What alkyl halide is needed to synthesize...Ch. 29 - 29.41 Devise a synthesis of threonine from diethyl...Ch. 29 - 29.42 Devise a synthesis of each amino acid from...Ch. 29 - Prob. 29.45PCh. 29 - Prob. 29.46PCh. 29 - Prob. 29.47PCh. 29 - Prob. 29.48PCh. 29 - Prob. 29.49PCh. 29 - 29.48 Brucine is a poisonous alkaloid obtained...Ch. 29 - Prob. 29.51PCh. 29 - Prob. 29.52PCh. 29 - Draw the structure for each peptide: (a) Phe–Ala;...Ch. 29 - 29.52 For the tetrapeptide Asp–Arg–Val–Tyr:
a....Ch. 29 - Prob. 29.55PCh. 29 - Explain why a peptide CN bond is stronger than an...Ch. 29 - Prob. 29.57PCh. 29 - 29.55 Draw the amino acids and peptide fragments...Ch. 29 - Prob. 29.59PCh. 29 - Prob. 29.60PCh. 29 - Prob. 29.61PCh. 29 - 29.59 An octapeptide contains the following amino...Ch. 29 - Prob. 29.63PCh. 29 - Prob. 29.64PCh. 29 - Draw all the steps in the synthesis of each...Ch. 29 - 29.62 Write out the steps for the synthesis of...Ch. 29 - 29.64 Another method to form a peptide bond...Ch. 29 - Prob. 29.68PCh. 29 - Prob. 29.69PCh. 29 - Which of the following amino acids are typically...Ch. 29 - After the peptide chain of collagen has been...Ch. 29 - Prob. 29.72PCh. 29 - Prob. 29.73PCh. 29 - 29.70 The anti-obesity drug orlistat works by...Ch. 29 - Prob. 29.75P
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- Following is the primary structure of glucagon, a polypeptide hormone of 29 amino acids. Glucagon is produced in the -cells of the pancreas and helps maintain blood glucose levels in a normal concentration range. Which peptide bonds are hydrolyzed when this polypeptide is treated with each reagent? (a) Phenyl isothiocyanate (b) Chymotrypsin (c) Trypsin (d) BrCNarrow_forwardMatch the following general enzyme names and reactions catalyzed: Enzyme Reaction catalyzed a. decarboxylase b. phosphatase c. peptidase d. esterase formation of ester linkages removal of carboxyl groups from compounds hydrolysis of peptide linkages hydrolysis of phosphate ester linkagesarrow_forwardWhich folate structure (from the list below) (a) is the substrate for the enzyme that is inhibited by methotrexate and trimethoprim? (b) has the most highly oxidized one-carbon substituent? (c) is used in the conversion of serine to glycine? (d) transfers its one-carbon substituent to a B12 coenzyme? What amino acid is synthesized as the end result of this reaction? (e) is the coenzyme for the thymidylate synthase reaction? (f) is not known to exist in nature? (g) is used in purine nucleotide synthesis?arrow_forward
- Cholic acid is secreted in bile as an amide linked to the aminogroup of glycine. This cholic acid–amino acid combination acts asan emulsifying agent to disperse lipids in the intestines for easierdigestion. Draw the structure of the cholic acid–glycine combination,and explain why it is a good emulsifying agent.arrow_forward1. Biogenic Amines are inactivated primarily by a. Sulfonation b. Glucoronidation c. Aromatic hydroxylation d. Methylation  2. A drug can exert its pharmacological effect only if it is  a. Protein bound b. Protein unbound c. Free drug d. Both B & C e. Both A & C  3. In order for the drug to be ready and available for absorption, it must be release first from its dosage form with the exception of:  a. Capsule b. Tablet c. Solution d. Suspension 4. All of the following are true, except a. Solubility increase with decrease particle size b. Solubility increase with increase surface area c. Solubility increase with increase particle size d. Solubility decrease with decrease surface area 5. The rate in which the drug appears in the bloodstream is also known as a. Half-life b. Potency c. Bioavailability d. Area under the curvearrow_forwardSubject :- Chemistr The alpha-beta and beta-gamma phosphate groups are destabilized how? A. resonance B. hydrophobic interactions C. magnets D. through electrostatic repulsionarrow_forward
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