Concept explainers
(a)
Interpretation:
The three amino acids present in the given protein segment needs to be identified.
Concept introduction:
Amino acids are compounds containing amino as well as acidic group. The general molecular structure of an amino acid is as follows:
Here, R is different group for different amino acids. If there is more than one amino group present in an amino acid, they are considered as basic amino acids and if there is more than one carboxylic group then they are considered as acidic amino acids.
(b)
Interpretation:
The N-terminal amino acid needs to be determined.
Concept introduction:
Amino acids are compounds containing amino as well as acidic group. The general molecular structure of an amino acid is as follows:
Here, R is different group for different amino acids. If there is more than one amino group present in an amino acid, they are considered as basic amino acids and if there is more than one carboxylic group then they are considered as acidic amino acids. The protein segment is made from N to C-terminal that is from amino group to the carboxylic group.
(c)
Interpretation:
The peptide bonds need to be identified.
Concept introduction Amino acids are compounds containing amino as well as acidic group. The general molecular structure of an amino acid is as follows:
Here, R is different group for different amino acids. If there is more than one amino group present in an amino acid, they are considered as basic amino acids and if there is more than one carboxylic group then they are considered as acidic amino acids.
(d)
Interpretation:
The alpha-carbon atoms need to be identified.
Concept introduction:
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Biochemistry
- a.Describe the bonds which hold a quaternary protein molecule together. b. Discuss the reasons why glycine and proline are not usually found in an alpha helix of proteins.arrow_forwardA. One example of conjugated protein that contains the following Prosthetic groups: a. Iron Protein class, Example, b. Lipids Protein class, Example, c. Phosphate group Protein class, Example, d. Carbohydrate Protein class, Example, е. Heme Protein class, Example,arrow_forwardConsider the following molecule. a. Name it.b. Use the three-letter symbols for the amino acids torepresent this molecule.arrow_forward
- E. PROTEIN PRIMARY STRUCTURE ELUCIDATION. 1. Determine the primary structure of the protein described below. Write the final sequence using the corresponding three-letter code for each amino acid. Example: M-F-Y-R should be written as Met-Phe-Tyr-Arg Treatment with cyanogen bromide and sequencing yields the following peptide fragments: o D-M o R-A-Y-G-N o L-F-M Chymotrypsin digestion and sequencing yields the following peptide fragments: o G-N D-M-L-F o M-R-A-Y o oarrow_forwarda. A tetrapeptide is abbreviated as PSQE. Write the name of the amino acid at the N-terminal end. b. A tetrapeptide is abbreviated as FRWL. Write the name of the amino acid at the C-terminal end.arrow_forwardThe number of distinct protein folds in limited. Why might this be so?arrow_forward
- a) Canonical forces in protein folding. Describe how these forces come into play when a protein folds. Why do are other intermolecular interactions important to fully understand folding processes?arrow_forwardA peptide bond... is a version of an ester bond is a version of an amide bond is the basis of protein secondary structure is formed by addition of waterarrow_forward. Consider the structure of the amino acid aspartic acid. Indicate the hybridization about each interior atom. H Harrow_forward
- Draw any pentapeptide. All C-O, C-N, and C-S bonds must be written out, as well as all N-H, S-H, and O-H atoms/bonds. Your peptide must include at least one amino acid from each of the major classes of amino acids (i.e. charged, polar, etc.). Circle each peptide bond in this peptide.arrow_forwardA. What type of bond is ( the two mark wtih questions mark) B. What special amino acid side chain is involved in forming these bond C. Does this bond form unde reduction or oxidizing D. Is this bond seen more in cytoplsmic proteins or in extravellular proteinarrow_forwardChemistry A. if a protein had two aspartic acid R groups interacting at pH 2, what kind of interaction would you see in its tertiary structure? B. draw the tripeptide Gly-His-Glu at pH 7.arrow_forward
- BiochemistryBiochemistryISBN:9781319114671Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.Publisher:W. H. FreemanLehninger Principles of BiochemistryBiochemistryISBN:9781464126116Author:David L. Nelson, Michael M. CoxPublisher:W. H. FreemanFundamentals of Biochemistry: Life at the Molecul...BiochemistryISBN:9781118918401Author:Donald Voet, Judith G. Voet, Charlotte W. PrattPublisher:WILEY
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage LearningBiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage LearningFundamentals of General, Organic, and Biological ...BiochemistryISBN:9780134015187Author:John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. PetersonPublisher:PEARSON