A. Write the structure of the following peptide at pH 5.0 and calculate its net charge at this pH. Asp-His-Tyr-Arg-Lys-Leu-Thr-Gln. Based on the pKa value of the ionizable groups.

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: The peptide with sequence GVPLT has antioxidant properties.    Draw the chemical structure of this…

A: A polypeptide is a long-chain polymer, which is made up by joining several amino acids.

Q: Can you please help find what Glutamate is?

A: Amino acids are the smallest entities that make up the proteins or peptides via peptide bond…

Q: Two peptide segments are shown below. Predict which one would have the most negative AG when going…

A: Protein folding is a spontaneous reaction by which most of the proteins fold inside the cell without…

Q: Consider the peptide EAHIVR. Write out the sequence of the peptide from N to C in three letter code.…

A: The pKa of the ionizable groups of the amino acids constituting a peptide determines the net charge…

Q: 3. A mutation that changes an alanine residue in the interior of a protein to a valine is found to…

A: Proteins are composed of twenty standard amino acids that differ from each other in their side-chain…

Q: Chemistry Draw the stable form of the peptide Ser-Trp-Glu-Asp-Cys-Asn at pH 10.40. Be sure to…

A: At pH 7 this is how a oligopetide of Ser-Trp-Glu-Asp-Cys-Asn looks.

Q: 3. Amino acid residues and peptide bonds (a) Draw the chemical structure of F, S and H joined by…

A: It is hard and hence often found confusing to explain a 3-D concept like dihedral angles in the 2-D…

Q: A. Draw the structure of the following peptide sequence at pH 2.0: ASP-ALA-THR-LYS-GLY B. What is…

A: Amino acids are basic building blocks of polypeptides, and one or more of these polypeptides they…

Q: His-Met-Asp-Tyr-Phe-Ser Calculate an approximate pI (isoelectric point) for this peptide. Please use…

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

Q: D. Explain why a protein (polypeptide chain) will assume a different 3-dimensional structure in: (1)…

A: The three-dimensional structure of a protein, also known as its native conformation, is critical for…

Q: draw the primary structure of the polypeptide at physiological pH range of 7/35-7/45 using…

A: Polypeptide chains are composed of amino acids bonded to each other via peptide bonds. The N and C…

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 (amide) bonds are foundational to biochemistry. Use the instructions for drawing peptides to…

A: Amino acids are linked via peptide bonds that are formed between the carbonyl atom of an amino acid…

Q: 2. Draw a dipeptide with a trans linkage and a net charge of -1 at pH 7 a. Indicate which six atoms…

A: The peptides are composed of twenty standard amino acids that differ from each other in their…

Q: Write the full name of amino acids, from N-terminus to C-terminus, after hydrolysis of the following…

A: Note: Since you have asked multiple questions, we will solve the first (the topmost) question for…

Q: Protein-4YU4 is given, choose a part of it (containing at least 30 amino acid residues), find the…

A: Protein-4YU4 is a PDB (protein data bank) name of mongoose haemoglobin, it is consist of four chains…

Q: a. Suppose that the R group of a histidine residue in a protein in its native tertiary structure is…

A: In the protein, the nonpolar amino acids are usually present in the inner hydrophobic region. Also…

Q: What percentage of molecules of peptide GGGG has no ionized groups (e.g. has BOTH protonated…

A: Amino acids: An amino acid can function as both an acid and a base because of its structural…

Q: Consider the following Peptide: Alanine-Lysine-Glutamine-Serine-Glycine Select all that applies Give…

A: Peptides are short chain of amino acids linked by peptide bonds. Amino acids that have been…

Q: 1. Consider the peptides P-A-I-G-E and M-A-T-T. a. Draw the structure of each peptide at a pH of 7.0…

A: Formation of the peptide bond neutralises any charge due to the alpha-amino group and alpha-carboxyl…

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: 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: The amino acid that is often used as a tag (in a run of 6-8 of this amino acid in a row) for protein…

A: Living cells have a complex system for protein synthesis. Ribosomes synthesize amino acid chains.…

Q: At pH 7, draw the structure of Arg-Tyr-Gln-Glu-Lys. 2. What’s the charge of this peptide at pH 12?…

A: 1. At pH 7, the Arg-Tyr-Gln-Glu-Lys peptide would have the following structure: H       H    H…

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: At pH 1, the charge on the side chain of Arg is

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The peptide below 요 H3N-CH- -NH- -CH- NH–CH=C -NH-CH-C NH–CH- C-OH CH3 CH2 CH2 CH2 CH HO-CH, CH2 C…

A: Peptides are produced from amino acids. The pH of the medium and the amino acid sequence determine a…

Q: 4. a. Give the full names of the amino acids in this peptide. H3 N -CH-C-N-CH-C-N-CH- C ČH3 н Cнон н…

A: The pKa values of amino acid side chains that constitute a protein play an important role in…

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: Please draw the structure of the 19 L-a-amino acids and proline in any form, as you prefer. You may…

A: Amino acids serve as monomers of proteins and composed of a carboxyl group, an amino group, a…

Q: Pro-Ser-Ala-Phe-Glu. Draw this peptide at pH 7 and include its stereochemistry.

A: Proteins are one of the most important macromolecules. They form the building blocks of all…

Q: what is the overall amino acid sequence?

A: Sequence of a peptide can be determined by digesting the peptide with different agents that cleave…

Q: b. Please draw the structure of the polypeptide: threonine-lysine-glutamine-valine at pH 7.0, and…

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

Q: The overall, net ionic charge on this peptide at pH = 7 would be: Cys-Ala-Glu-Arg-Met-Ser +2 -1 +1 O

A: Organic substances with both amino and carboxylic acid functional groups are called amino…

Q: A peptide with an amino acid sequence and molecular mass (1028.5193 Da) is given below HVMTLNLGEK…

A: Above Mentioned peptide sequence is made of 10 amino acids and contains one Lysine amino acid at its…

Q: Regarding to ALL the 20 standard amino acids 1. Are ALL the 20 standard amino acids asymmetric and…

A: Proteins are molecules that form the building block of life. Amino acids are biomolecules that form…

Q: draw the primary structure of the polypeptide at physiological pH range of 7.35-7.45 using…

A: A polypeptide is an amino acid chain molecule where the carboxyl group of one amino acid is linked…