Of the four sequences below, one can be that of a peptide, others can't. Which is the one that can correspond to a peptide =?

Q: Draw the structures and indicate the net charge of the following amino acids for each pH value.…

A: Amino acid are amphoteric biomolecules which will have both acid group and basic group amine group…

Q: Illustrate a glycosidic, peptide and a phospho-diester bond.

A: Glycosidic bond   - This bond is formed between C1 carbon atom of a monosaccharide unit and C4…

Q: identify the presence of a peptide bonds in your structure by putting a star/highlighting at the…

A: The compound given is,

Q: reconstruct the peptide sequence. M, 1-Letter Residue 71.0786 R. 156.1870 114.1036 115.0884 103.1386…

A: Solution: The polypeptide chain from N- to C- terminus is as follows.

Q: Calculate an approximate pI for Peptide E-G-E-A

A: The chemical structure for peptide is shown below.

Q: Part a) Draw the peptide K-E-S. Part b) How can you estimate the pI of the peptide?

A: We have to predict the structure of peptide as well as the pI.

Q: One of the most advanced methods for determining a protein sequence is tandem mass spectrometry…

A: Tandem mass spectroscopy includes the coupling of two or more mass analyzers to significantly…

Q: A tripeptide undergoes complete hydrolysis and the resulting mixture contains only phenylalanine and…

A:

Q: In which model is it easiest to follow thepolypeptide backbone?

A: Polypeptide backbone is that when covalent linkage occurs from one amino acid to the other which has…

Q: Draw the structure of the tetrapeptide Asp-Arg-Val-Tyr. Please show the appropriate stereochemistry…

A: Amino acids are the substances which contains a carboxylic group(-COOH), an amine group(-NH2), a…

Q: Estimate the pl values of the following peptides: a. Ser-lle and b. Gly-Tyr-Val.

A: The question is based on the concept of biomolecules . we have to calculate isoelectric point for…

Q: +NH3-Gly-Lys-Ser-Arg-COO- (pH=13)

A: At pH = 13 it will have only negative charge at COOH group. Because in basic medium proton is…

Q: A normal polypeptide and a mutant of the polypeptide were hydrolyzed by an endopeptidase under the…

A: To find kind of amino acid substitution:

Q: The maximum number of amino acid side chains that can potentially form an ionic bond (+lil-…

A: Histidine is an amino acid with a imidazole ring attached as a substituent. The polarity of…

Q: Cleavage of the following peptide with cyanogen bromide would result in the production of smaller…

A:

Q: Which of the attached amines can be used to resolve a racemic mixture of amino acids?

A: Amino acids are a class of organic compound which contains a amino group and an carboxylic group in…

Q: A tripeptide contains lysine (R= -(CH₂)4NH2), phenylalanine (R= -CH₂C6H5) and glycine (R= -H). It…

A:

Q: Which statement about the peptide G TA is correct? Select an answer and submit. For keyboard…

A: G T A is Glycine Threonine Alanine so option - B contradict option- C also contradict because Asn is…

Q: Which of the following is an acceptable name for the peptide sequence below?

A: While naming the amino acid sequence, start from N-terminal and end on C-terminal, so, it will be…

Q: Which would you expect to be more soluble in water, a peptide containing mostly alanine and leucine…

A: Amino acid are the organic compounds which contains both amines  and carboxylic acids within the…

Q: Draw the structure for the peptide CF. • You do not have to consider stereochemistry. • You do not…

A: Given peptide, CF C- Cysteine F - Phenylalanine

Q: Consider the following tetrapeptide, written in a sequence according to normal convention, from left…

A: # Option-1: Disulfide linkage is formed by sulfur containing amino acid cysteine.  Since  Residue 2…

Q: Consider the partial sequence of a peptide. I L W A N R M S H V L F A V E A Select all amino acid…

A:

Q: NH2 OH OH H2N" 'N' HO ..... O: IZ ZI IZ

A: N-Terminal residue is the amino acid residue having free NH2 group and conventionally it is lying on…

Q: In a paragraph form provide the experimental procedure of the reaction of oxazetidine-containing…

A: Proteins are composed of amino acids in which amine group of one amino acid linked to carboxyl group…

Q: Which of the following peptides will elute last from a hydrophobic interaction column? A)…

A: From the given peptides we have to determine the peptide that is eluted last using hydrophobic…

Q: what is the overall net charge on the peptide KKSG at pH 7.0?

A:

Q: A set of amino acid residues that prefer formation of a-helix are O a. Ala, Leu, Arg O b. Asn, Asp,…

A: Methionine, alanine, leucine, glutamate, and lysine uncharged all have especially high helix-forming…

Q: The maximum number of amino acid side chains that can potentially form an ionic bond (+lI-…

A: The structure of side group is shown below: It has two Nitrogen atoms in the ring capable of…

Q: Why is glycine the only amino acid commonly observed in peptides inconformations with phi and psi…

A:

Q: protein has a number of aspartyl and gluatmyl residues, what would be the expected pI for this…

A: Answer  The protein has number of aspartyl and glutamic…

Q: The amino acid sequence shown below is a short excerpt (residues 130-172) from the rod domain of an…

A: Following the rules of conservative amino acids, the amino acids that when replaced with a…

Q: НО CH3 HOʻ NH NH NH H3N `NH `NH ČH3 H3C CH3 NH2

A:

Q: Determine the pl for this synthesized pentapeptide: A-B-C-D-E Given that the pK values for the amino…

A: Amino acid are biomolecules which have both acidic and and basic group  We are required to find the…

Q: Part B Rank the following peptides from most to least hydrophobic. Rank the peptides from most to…

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

Q: Determine the amino acid sequence of a polypeptide from the following data:Complete hydrolysis of…

A:

Q: Which peptides is more likely to take up on alpha-helical structure? Explain. Top:…

A: The alpha-helical structure is the right-hand helix conformation present in the secondary structure…

Q: A mutational change alters a polypeptide by substitutingthree adjacent prolines for three glycines.…

A:

Q: Vasopressin is a peptide hormone synthesized by the hypothalamus; in its reduced form it has the…

A: The given structure is,

Q: Which peptide in below pair has side chains that exhibit predominantly van der Waals forces?…

A: Van der Waals forces are the forces that are observed in peptides which are non polar in nature or…

Q: Reaction of the intact peptide with 1-fluoro-2,4-dinitrobenzene followed by hydrolysis creates Ala…

A: 1-fluoro-2,4-dinitrobenzene is Sanger's reagent.

Q: Considering the peptide structure on the image, label N-terminus and C-terminus, circle each of the…

A: Given that, a structure of a peptide.  We have to assign the N-terminus and C-terminus. Also we have…

Q: Part B Consider the partial hydrolysis of the peptide Ala-Ser-Gly-Met-Thr-Val. Sort the smaller…

A: In this question, we will see which Peptide will form or not after partial hydrolysis.

Q: Decide if the side chains of the following peptides are nonpolar or polar, and label the hydrophobic…

A: Non-polar amino acids are hydrophobic in nature and polar amino acids are hydrophilic in nature. (a)…

Q: Match the pair of amino acids in first column with the type of side- chain interaction the pair is…

A:

Q: The bottom peptide segment is found in the secondary structure composed of anti-parallel - sheets.…

A:

Q: indicate the RIGHT alternative: (a) The Zwitterion form of an amino acid exists only at a point pH…

A: Amino acid -                      are the molecules  which combined to form protein. It is the…

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…