At what pH can you separate the following peptides: ala-ala-ala glu-glu-glu, his-his-his? A. 2.0 B. 4.0 C. 5.0 OD. 7.0 E. 9.5

Q: From this structure, what is the predominant secondary structure of the protein? Based on what you…

A: Lindsay-Lang proposed the first protein structural hierarchy with four levels: Central, secondary,…

Q: 2. Consider the peptide Trp-Arg-Glu-Cys-Gly-Tyr. For the drawings requested below, please show in…

A: Recall that:Amino acid sequences are written with N-terminal amino acid on the left and C-terminal…

Q: A. Write the structure of the following peptide at pH 5.0 and calculate its net charge at this pH.…

A: Hi. Thank you for the question. As per the honor code, We'll answer the first question since the…

Q: Using proper convention, provide the amino acid sequence for the following protein. _8_#_H²-8-8° CH3…

A: There are twenty standard amino acids that makeup all the peptides and proteins inside the cell.…

Q: Draw the structural formulas of the following peptides, andshow which bond would be cleaved by…

A: Peptides are the short chain of amino acids that are formed by the joining of amino acids through…

Q: If an oligosaccharide is attached to a protein via an O-glycosidic linkage which amino acid…

A: The glycoproteins are formed by the joining of oligosaccharide with protein. The glycoproteins are…

Q: Given below is a sequence of a polypeptide: AVLLRKIFWFDLAG The pKas of different groups/side chains…

A: The pH of the media decides the overall charge on a molecule especially of amino acid side chains.

Q: The structure of a peptide is showwn bélöw: NH, HN

A: Peptides of proteins are composed of 20 standard amino acids attached together via peptide bonds.…

Q: 1. Draw an approximate titration curve of the following amino acid. Label the approximate…

A: The titration curve is a plot that tracks the behavior of amino acids under the influence of…

Q: Peptide ionization Consider a peptide with the sequence Ser-His-Glu-Cys-Arg-Gln. You will be asked…

A: The net charge of the each amino acid residue in a peptide is determined by the side chain pK of the…

Q: 4) Using the pK, data found in the supplied chart, determine the predominant charge of each amino…

A: Amino acid is amphoteric in nature i.e it can act as both acid as well as . This property is due…

Q: Identify the nonpolar amino acids and the acidic aminoacids in the following…

A: Amino acids are the biomolecules that are composed of the carboxyl group, amino group, and R group…

Q: For the oligopeptide below Gly-Asp-Ser-Cys-His pKa of terminal amino group: 8.0 pKa of Asp: 4.1 pka…

A: The given oligopeptide is composed of glycine, aspartic acid, serine, cysteine, and histidine amino…

Q: Two peptide sequences are shown below. Peptide A: N-term – GDL – C-term Peptide B: N-term – GTL –…

A: A peptide is a short chain of amino acids that contains one or more amino acids. Peptide bonds…

Q: What is the charge of this peptide at pH 1.5?

A: Amino acids Proteins are the polymers of nitrogenous compounds called amino acids. Each amino acid…

Q: The structures of the amino acids lysine and aspartic acid are shown: H CH₂ OH НО NH, Lysine…

A: The goal is to explain how the structure of amino acids affects their function, notably the…

Q: What amino acid/s is/are isolated when Ala-Lys-Val-Phe—His-Tyr-Gly is treated with trypsin and…

A: Trypsin and chymotrypsin are serine proteases. Both these proteases catalyze the hydrolysis of…

Q: 1: QAMGRAGDLKYLGLHSV Peptide 2: ALMALFMVMALVLVSVLFIA Peptide 3: MVEDLLKQIARYLISE (a) Circle all of…

A: We are authorized to provide three sub parts at a time; since you have not mentioned which part, we…

Q: A tripeptide has the following sequence:    Glu-Trp-Arg What is the net charge of this tripeptide…

A: The given peptide is composed of three amino acids. Peptide composed of three amino acids is called…

Q: Identify and match the lettered regions in the titration curve of a basic amino acid. pic 5.jpg…

A: Histidine is an amino acid that has an imidazole ring as the functional group (R group). Thus, the…

Q: Which of the following is incorrect about the peptide Arg-Asp-Cys-Tyr-Gln-Arg-Glu? O a. Its…

A: The peptide given is represented in single letter codes as: RDCYQRE Its structure is:

Q: Peptide A: AFEQHSR Calculate the isoelectric point of Peptide A using the pKa values in Table 4-1 of…

A: A peptide is a short chain of amino acid residue linked via a peptide bond. Recall that: Amino acid…

Q: Concerning the peptide shown below identify five structural features.

A: Amino acids are organic compound having two functional group namely carboxyl and amino group.…

Q: 27. Draw palmitic acid, identify a, B and w carbons, write out its short hand notation

A: Since you have posted multiple questions, we will answer only one question for you. If you want any…

Q: 64. Cooperativity in the unfolding process during protein denaturation suggests that loss of A.…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Draw the structure of the following peptide as it would be at pH = 7. Does the molecule have a net…

A: The given peptide is composed of methionine, serine, glutamic acid, alanine, two lysine, and…

Q: Identify and briefly describe the different PEGylation strategies you can use to PEGylate this…

A: PEGylation refers to the process where polyethylene glycol polymer is chemically added to a protein…

Q: Draw the structure of the following: (in the image provided) Use the amino acids below. F -…

A: Recall that: Amino acids have an amino group, a carboxyl group and a side linked to the same carbon…

Q: The β-sheet structure is the secondary structure of the protein which is a sideways folded structure…

A: Protein is an organic nitrogenous macromolecule that is required for human health. In the human…

Q: You have discovered a new amino acid that you name in honor of your favorite course.…

A: The titration curve of an amino acid shows the change in pH as an acid or base is added to the…

Q: Draw out the peptide DPGS as it would appear in a Type II β-turn and clearly label/identify all the…

A: Beta turns are a prominent secondary structure seen in proteins. The 2 most common types of beta…

Q: What are the charges of the following amino acids peptides at ph 14? 1. GLAVV 2. RRKKQ

A: Peptide chain is a short chain of amino acids joined by peptide/amide bonds (covalent bond). The…

Q: Suppose that the given peptide below is a segment in a globular protein's primary structure.…

A: Given the primary structure of a globular protein: T-L-S-A-R-I-D-V…

Q: Assume a protein is composed of 120 amino acid residues and that each amino acid can have three…

A: Proteins are primarily polypeptide chains. A polypeptide chain is formed by amino acids. Amino acids…

Q: Which of the following amino acids can interact via ionic/electrostatic interactions with lysine at…

A: The amino acids contain different side chains or functional group (R group) that may be uncharged or…

Q: Which peptide would be more soluble at pH 7.0, (Val)₂₀ or (Asp)₂₀ ? at pH 3.0, (Gly-Glu-Val)

A: Proteins have their least solubility close to the pH that is equal to their pI.