Chapter 29: Q53. (page 1194)
Name each peptide using both the three-letter and one-letter abbreviations of the component amino acids.
Short Answer
1.Gly-Asp-Glu and G-D-E.
2.Ala-Gly-Arg and A-G-R.
Chapter 29: Q53. (page 1194)
Name each peptide using both the three-letter and one-letter abbreviations of the component amino acids.
1.Gly-Asp-Glu and G-D-E.
2.Ala-Gly-Arg and A-G-R.
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Get started for freeConsider the decapeptide angiotensin I.
The larger polypeptide is angiotensin II, a hormone that narrows blood vessels and increases blood pressure. Give the amino acid sequence of angiotensin II using threeletter abbreviations. ACE inhibitors are drugs that lower blood pressure by inhibiting the ACE enzyme (Problem 5.15).
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)
Which of the following amino acids are typically found in the interior of a globular protein, and which are typically found on the surface: (a)phenylalanine; (b)aspartic acid; (c) lysine; (d) isoleucine; (e) arginine; (f) glutamic acid?
Consider two molecules of a tetrapeptide composed of only alanine residues. Draw the hydrogen bonding interactions that result when these two peptides adopt a parallel ฮฒ-pleated sheet arrangement. Answer this same question for the antiparallel ฮฒ-pleated sheet arrangement.
Question: Identify the functional groups in each molecule. Classify each alcohol, alkyl halide, amide, and amine as 1ยฐ, 2ยฐ, or 3ยฐ
a.
b.
c.
d.
e.
f.
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