Chapter 29: Q12P (page 1163)
Draw the organic products formed in the following reaction.
Short Answer
Answer
Chapter 29: Q12P (page 1163)
Draw the organic products formed in the following reaction.
Answer
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Get started for freeFor the tetra peptide Asp–Arg–Val–Tyr:
a. Name the peptide using one-letter abbreviations.
b. Draw the structure.
c. Label all amide bonds.
d. Label the N-terminal and C-terminal amino acids
Histidine is classified as a basic amino acid because one of the N atoms in its five-membered ring is readily protonated by acid. Which N atom in histidine is protonated and why?
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 metabolism, inhibition occurs by reaction of orlistat with a serine residue of the enzyme, forming a covalently bound, inactive enzyme product. Draw the structure of the product formed during inhibition.
Give the amino acid sequence of an octapeptide that contains the amino acids Tyr, Ala, Leu (2 equiv), Cys, Gly, Glu and Val, and forms the following fragments when partially hydrolyzed with HCl: Val-Cys-Gly-Glu, Ala-Leu-Tyr, and Tyr-Leu-Val-Cys.
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; (b) trypsin; (c) carboxypeptidase; (d)
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