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:
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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_forwardHello, please help me with my assignment. Can you answer ALL QUESTIONS EXCEPT QUESTIONS 1-31. Which of the following statements is accurate regarding these protein structures?a. Proteins in a quaternary structure consist of a simple polypeptide chain.b. Interactions between the R groups in amino acids form tertiary structure.c. Secondary structures are formed by multiple polypeptide chains.d. The two types of primary structure are α- helices and β- pleated sheets. 2. What type of bonds are formed between amino acids?a. Peptide bondb. Glycosidic linkagec. Hydrogen bondsd. Ester linkages 3. Which of the following is an example of protein denaturation?a. Amino acids fold into repeating patterns due to hydrogen bonding of the peptide backbone.b. Several amino acids are joined together via peptide bonds.c. A protein binds with a substrate, lowering the activation energy of a reaction.d. A protein is exposed to extremely high heat, causing it to lose its secondary structure and be leftwith…arrow_forward
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