Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the...
-
Upload
rosamund-osborne -
Category
Documents
-
view
219 -
download
1
Transcript of Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the...
![Page 1: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/1.jpg)
Amino Acids, Peptides and
Proteins
Chapter 23
![Page 2: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/2.jpg)
Amino Acids, Peptides and Proteins1. Answer the following:
a. Which amino acid(s) is achiral?b. Are naturally occurring amino acids D or L?c. Which amino acids(s) have 2 chiral centers?
![Page 3: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/3.jpg)
Amino Acids, Peptides and Proteins2. Explain kinetic resolution.
![Page 4: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/4.jpg)
Amino Acids, Peptides and Proteins3. Draw the following amino acids at pH =
0, 5, and 13.a. Valineb. Glutamatec. Lysine
![Page 5: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/5.jpg)
Amino Acids, Peptides and Proteins4. Calculate the pI of the following amino
acids.a. Phenylalanineb. Histidinec. Aspartic Acid
![Page 6: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/6.jpg)
Amino Acids, Peptides and Proteins5. What is the net charge of the following
amino acids at the designated pHs?a. Serine at pH = 4b. Arginine at pH = 5c. Glutamic acid at pH = 5
![Page 7: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/7.jpg)
Amino Acids, Peptides and Proteins6. Which amino acids are the most polar
and nonpolar?
![Page 8: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/8.jpg)
Amino Acids, Peptides and Proteins7. Thin layer chromatography of a solution
of threonine, valine, lysine, alanine and serine yielded the following; determine which amino acid goes with each spot?
![Page 9: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/9.jpg)
Amino Acids, Peptides and Proteins8. Gel electrophoresis of a solution of
histidine, tyrosine, lysine, aspartate and glutamic acid yielded the following determine which amino acid goes with each spot?
cathode anode
![Page 10: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/10.jpg)
Amino Acids, Peptides and Proteins9. Show how alanine can be synthesized
via…a. HVZb. Reductive aminationc. N-Phthalimidomalonic ester synthesisd. Strecker Sythesis
![Page 11: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/11.jpg)
Amino Acids, Peptides and Proteins10. Draw the met-ile-tyr-asn-his at pH = 7
![Page 12: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/12.jpg)
Amino Acids, Peptides and Proteins11. Show how the following peptide can be
synthesizedala-gly-ser
![Page 13: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/13.jpg)
Amino Acids, Peptides and Proteins12. Distinguish between primary,
secondary, tertiary and quaternary structures of peptides and proteins.
![Page 14: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/14.jpg)
Amino Acids, Peptides and Proteins13. Descibe denaturation and give
examples of possible causes for denaturation.
![Page 15: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/15.jpg)
Amino Acids, Peptides and Proteins14. Show the cleavage sites on the following peptide
if introduced to each of the following reagents:
ala-gly-phe-met-ser-lys-tyr-asn-glu-arg-pro-met-leu-his
A. Carboxypeptidase AB. EdmansC. Cyanogen bromideD. TrypsinE. Chymotrypsin
![Page 16: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/16.jpg)
Amino Acids, Peptides and Proteins
![Page 17: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/17.jpg)
Amino Acids, Peptides and Proteins
![Page 18: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/18.jpg)
Amino Acids, Peptides and Proteins
![Page 19: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/19.jpg)
Amino Acids, Peptides and Proteins
![Page 20: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/20.jpg)
Amino Acids, Peptides and Proteins
![Page 21: Amino Acids, Peptides and Proteins Chapter 23. Amino Acids, Peptides and Proteins 1. Answer the following: a. Which amino acid(s) is achiral? b. Are naturally.](https://reader036.fdocuments.in/reader036/viewer/2022062314/56649d845503460f94a6b273/html5/thumbnails/21.jpg)
Amino Acids, Peptides and Proteins