A tetradecapeptide (14 amino acid residues) gives the following peptide fragments on partial hydrolysis. From this information, deduce the primary structure of this polypep- tide. Fragments are grouped according to size. Pentapeptide Fragments Tetrapeptide Fragments Phe-Val-Asn-Gln-His Gln-His-Leu-Cys His-Leu-Cys-Gly-Ser His-Leu-Val-Glu Gly-Ser-His-Leu-Val Leu-Val-Glu-Ala

Q: Classify each peptide chain as part of a parallel β sheet, part of an antiparallel β sheet, either…

A: Beta-sheets are one of the most common secondary structures seen within proteins. Several…

Q: Illustrate the titration curve of the peptide with the given sequence below. Show the pKas,…

A: The given peptide is composed of eight amino acids attached together via peptide bonds. All the…

Q: Using the following sequence and the amino acid chart, please give the amino acid sequence:…

A: The genetic material in majority of complex higher organisms and various viruses is DNA or…

Q: Glycosylation is a major type of protein post-translational modification. Identify the amino acid…

A: Cavalent or generally enzymatic reactions takr place after or during translation are termed as post…

Q: What amino acids will be positive at a pH of 2? Use the pKa table

A: Amino acids are the building blocks of proteins and peptides. They have two common functional…

Q: Translate the given amino acid sequence into one-letter code.…

A: Genetic codons are long enough to be taken in account in research purposes. So as for such, some…

Q: Upload a drawing of Gly-Met-Asn-Glu-His  Label the alpha carbons  Label the R groups as…

A: Alpha carbon: It is the carbon connecting the amino group and carboxylic group in amino acid. Acidic…

Q: Write the structure of each of the following peptides. Start with the N-terminal and the COO- on the…

A: Peptides are the sequence of amino acids that are joined through formation of peptide bond. The…

Q: Which of the following polypeptides would be most likely to form an a helix? Explain your answer.…

A: A polypeptide chain folds into a protein in its native, three-dimensional form through a process…

Q: A nonapeptide was treated with dithiothreitol to reduce any disulfide bridges, then partially…

A: Amino acids are the basic unit of the peptide and proteins. They are joined via the peptide bonds to…

Q: The alkaline hydrolysis of pAUGCAGC oligonucleotide produces: O A. Uridine 2'-monophosphate, uridine…

A: Alkaline hydrolysis is a process by which RNA is degraded dur to attack of -OH ions of alkali. The…

Q: Which peptide would absorb the most UV light at 280nm? (Can you show work because I mainly want to…

A: Aromatic amino acids are relatively non polar.  All aromatic amino acids such as tyrosine,…

Q: Case B: An oligopeptide has the ff amino acid composition: 2 Phe, 2 Met, 2 Glu, 1 Arg, 1 Val, 1 Leu,…

A: Peptides are formed of amino acids connected through an amide/peptide bond. The peptide bond is…

Q: The dynorphins are a group of opioid peptides that play an important role in changes in the brain…

A: Opioids are drugs that bind with the opioid receptor and produce effects like morphine; medically…

Q: Identify the polar amino acids, the aromatic amino acids,and the sulfur-containing amino acids,…

A: The amino acids are the organic acids that contain alpha carboxyl group, alpha amino group, hydrogen…

Q: Given below are sequences of amino acids present in an oligo-peptide chain. Count the overall charge…

A: Amino acids are the monomeric units that are used to form a peptide or protein and have chiral…

Q: Given the polypeptide chain below: Alanine - Arginine - Valine - Histidine - Aspartic acid -…

A: Amino acids are organic molecules comprised of two functional groups that are an amino group and the…

Q: What products are formed when each peptide is treated with trypsin? Be sure to answer all parts.

A: Trypsin is a serine protease belonging to the PA clan that hydrolyzes proteins in the digestive…

Q: Serine and threonine can both be directly deaminated during amino acid metabolism. What else do…

A: The building components of proteins are amino acids. They are organic compounds made composed of a…

Q: What is the Amino Acid Sequence of 3'-AUG GUA CUC UUA ACA CCA GUG GAA AAA-5'

A: Proteins are polymers made of amino acids. The cellular process by which proteins are synthesized by…

Q: Titrated the polypeptide with DTNB. The absorbance of the obtained yellow color was 0.16. 1.…

A: "Since you have asked multiple questions, we will solve the first two question for you. If you want…

Q: Which of the following peptides will likely form a loop or turn in a protein and explain why

A: The turns are the third type of secondary structure. These are short, U-shaped secondary structures,…

Q: Which amino acids would you expect to find marked on the alpha helix? Alanine Isoleucine Leucine…

A: A prevalent motif in the secondary structure of proteins, the alpha helix (-helix) is a right-hand…

Q: Changing one amino acid within a protein sequence from a tryptophan to a stop codon would be best…

A: Mutation is the change in the nucleotide sequence of the DNA that causes a change in the mRNA.…

Q: A heptapeptide that puncture the bacterial cell wall has just been recently isolated from the venom…

A: The given flowchart describes the various chemicals that the heptapeptide has been treated with and…

Q: Please calculate and plot the charge on a peptide with the sequence of NEYK over the pH range from 1…

A: Before calculating the charge on the peptide and plotting it, we need to be thorough with the…

Q: Trypsin cleaves polypeptide chains at the carboxyl side of a lysine or arginine residue.…

A: Trypsin is a serine protease found in the digestive system of many vertebrates. It helps in breaks…

Q: Consider the hypothetical serine protease in the image, which shows the specificity pockets. The S1…

A: Protease: It is an enzyme that speeds up or catalyzes the process of proteolysis, which reduces…

Q: Given the peptide Lys-Glu-Trp  a) Draw the appropriate titration curve for this peptide. Label X…

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

Q: Use the one letter code to give the sequence of this peptide

A: A polypeptide is a chain structure, which is comprised of several amino acids. All these amino acids…

Q: What part of the structure is represented by the second chain having the order Asp- Asp-Ser-Val?

A: Proteins are made by linking amino acids with the help of peptide bonds. They form a chain that also…

Q: The amino acid residue sequence of the hemoglobin beta subunit polypeptide would represent what type…

A: Hemoglobin, the protein present in the red blood cells is responsible for the transport of gases…

Q: Form DIANINE name using the one-letter symbol and draw it as a peptide chain. Name the peptide as…

A: The given peptide has seven amino acids. The individual amino acids in a peptide are joined by the…

Q: secondary structure? O -KPGHP- O-KRKKK- -YFVWT- O-MRLEK-

A: Beta sheets are secondary structures of a protein that are formed due to interchain hydrogen bonding…

Q: "de 96 5 no

A: Answer :- The pH of the solution and the pKa values of the side chains of amino acids must be taken…

Q: You are in the process of determining theamino acid sequence of a peptide. After trypsin digestion…

A: An amino acid is an organic molecule that is made up of a basic amino group, an acidic carboxyl…

Q: Draw a peptide from the given amino acids Phe-Cys-Ala-Arg-Ala-Ser-Tyr. Try to cleave this…

A: Pepsin has a broad cleavage specificity but has a greater propensity to cleave near hydrophobic…

Q: G Which of the following amino acids is most unlikely to be present in a beta sheet? Lysine Valine…

A: Proteins show two types of secondary structural elements. They are1) Alpha helix and2) Beta sheets .…

Q: Sickling occurs in deoxyhemoglobin S but not in oxyhemoglobin S. Oxyhemoglobin has a small,…

A: Sickling is the process where the haemoglobin protein inside the RBC cell clumps together this…

Q: Draw beta sheet with backbone hydrogen bonds, is this structure on the interior or exterior of the…

A: A typical structural motif in proteins is a beta sheet, commonly referred to as a beta strand. It is…

Q: You have digested a small protein with two different proteases, each protease acting on the protein…

A: A peptide bond is an amide linkage formed between two molecules where an α-carboxyl group of one…