If you were to design a small peptide with a large net negative charge at physiological pH, which amino acid residues should predominate?

Q: Give the full name of the amino acid and based on the structure of the side chain is it hydrophobic…

A: Concept:  Amino acid:Amino acids are organic molecules which combine to form proteins molecule.…

Q: Consider the following peptide : Phe – Glu – Ser – Met and Val – Trp – Cys – Leu. Do these peptides…

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Q: Write and name all possible dipeptides from valine and phenylalanine

A: Solution- Amino acids can be defined as the organic compounds containing amino group (−NH2) and…

Q: lonization State of Histidine Each ionizable group of an amino acid can exist in one of two states,…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Denaturation of a protein is a physical change, the most readily observable result of which is loss…

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Q: Each ionizable group of an amino acid can exist in one of two states, charged or neutral. The…

A: Histidine has the three ionizable functional groups and we have to assign proper pKa and net charge…

Q: Your task is to categorize and tabulate the 20 standard amino acids with the following columns:

A: Amino acid are the building block of protein which contain both acidic COOH and basic NH2 group

Q: All amino acids have two ionizable functional groups: an a-amino group (average pK, of 9.4) and an…

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Q: Draw the tripeptide RDF. Draw the structure that would exist at physiological pH.  For the peptide…

A: Amino acid:- It maybe defined as the compounds which contain an amino(-NH2) group, a carboxyl…

Q: What observations led Linus Pauling and his colleaguesto hypothesize that the peptide bond exists as…

A: The structure of protein contains amino acids as the basic monomer unit. These amino acids are…

Q: A. Lysine is considered a basic amino acid containing a guanidino group. If all ionizable protons…

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Q: Draw the chemical structure of the following amino acid sequence at pH 7, label the peptide bonds,…

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Q: Draw an equation for the hydrolysis of a peptide bond of the polypeptide shown below

A: In hydrolysis of polypeptide , break only amide bonds into -COOH and -NH2 .

Q: Reaction of the a-carboxyl group of an amino acid or peptide with phenylisothiocyanate allows for…

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

A: The organic or biological compounds in which the carbon atom is bonded to an amine group (NH2), a…

Q: Use three-letter amino acid abbreviations to give the sequence of amino acids in this polypeptide.…

A: Answer:- This question is answered by using the simple concept of naming of a polypeptide using the…

Q: draw the primary structure of the peptide DKMMS at pH 7.4 and name this peptide and what chain…

A: Primary structure of a peptide refers to the amino acid sequence in the peptide.

Q: Describe the tertiary and quaternarystructure of a protein.

A: Proteins are made up of long chains of amino acids. These amino acids are known as the monomers of…

Q: What trend can you suggest for the stability of proteins under varying pH

A: As we decrease the pH (by adding acid ) converts COO- ion to a neutral COOH group. In each case the…

Q: Draw the structure of the pentapeptide alanine-leucine- phenylalanine-glycineUisoleucine. Assume…

A: Given: The structure of pentapeptide alanine-leucine-phenylalanine-glycine-isoleucine has to be…

Q: Draw out the peptide IYV and clearly label/identify all the Phi, Psi, and peptide bonds present in…

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Q: Give the amino acid sequence of each peptide using the fragments obtained by partial hydrolysis of…

A: Primary constituents of peptides are amino acids. Amino acid sequence with 2 to 50 residues are…

Q: Identify amino acids X and Y, given that the interaction is the strongest between two amino acids.

A: These 2 amino acids are- Glutamic acid (Glutamate, Glu-) and Aspartic acid (Aspartate, Asp-)

Q: ive An Example of D amino Acid and its application ?

A: An organic compound that contains both the NH2 group and the COOH group bonded to the same C-atom.…

Q: Write the structure of all possible peptides containing these amino acids: Arg, Lys,Phe

A: A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one…

Q: A. Draw the structure of L-valine in a strongly basic solution. B. What is the charge of this amino…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Draw all ionic structures for an amino acid under acidic and basic conditions, and identify the…

A: Given information,        Amino acid under acidic and basic conditions, and the zwitterion.

Q: which amino acids has a side chains with a conjugate acid form that is neutral?

A: Amino acids are the molecules which containing an amine group, a carboxylic acid group and a side…

Q: draw the structure of the amino acid(s) hydrogen bonded with/around Alanine -…

A: Amino acids forms polypeptides ( a combination of amino acids in chain form) by the formation of…

Q: -NH 'N- H,N. NH HN HN `Ph HO, HN. HN" H2N -Ph: Phenyl group, -C6H5 `NH

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Q: Calculate the isoelectric pH of this peptide: His-Tyr

A: Here we are required to find the isoelectric point pH of the peptide.

Q: In the following peptide, which amino acids would be D chirality? HO. HS NH3 ООС ZI IZ ZI

A: D chirality  represents S configuration.

Q: Give the name of each amino acid Classify the peptide Dipeptide, Tripeptide, Polypeptide or Protein…

A: There are 5 amino acids in the given structure. The name of these amino acids with structure is…

Q: peptide has the sequence

A: peptide sequence is:…

Q: In the formation and naming of peptides, which of the following is not true? * The carboxyl group of…

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Q: Write the complete structures for the following peptides. Tell whether each peptide is acidic,…

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Q: Why would a protein likely remain soluble at pH conditions either above or below the protein’s pI,…

A: The solution is given below -

Q: How many different tetrapeptides can be made under the following conditions? Q.) All 20 amino acids…

A: Given: To find the tetrapeptides can be made from all 20 amino acids.

Q: Write the structure of all possible peptides containing these amino acids: Ala, Leu, Use single…

A: The abbreviations for the given amino acids are: Alanine      Ala    ALeucine      Leu    L

Q: For aspartic and glutamic acids, the isoelectric point occurs at a pH where the net charge on the…

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Q: How many molecules of water would be required to completely hydrolyze the following peptide?…

A: Given: The given peptide is, Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg

Q: Fill in primary, secondary, tertiary or quaternary into the following statements about proteins:…

A: In this question, we will Identify primary, secondary, tertiary and quatanary structure of proteins.…

Q: Aspartamen, which is commonly known as Nutrasweet contain the followin dipetide a. what are the…

A: The aminoacids present in aspartame has to be given.

Q: a. Tyrosine b. Alanine c. Leucine d. Asparagine 5. Draw a picture showing the details of the…

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Q: Define the following terms: a. peptide bond b. Schiff base c. disulfide bridge d. aldimine e.…

A: Since you posted multiple choice question. I will answer for the first three. (a) peptide bond -…

Q: His-Met-Asp-Tyr-Phe-Ser within this peptide, which amino acid residue is the most hydrophobic and…

A: Hydrophobic amino acids are those with side-chains that do not like to reside in an aqueous…