indicate which of the amino acid residues in the following peptide sequence contains a group that has a positive charge for its most likely charge state at pH 4. Lys-His-Thr-Glu-Asn-Cys-Val-Ile-Ser If none of the amino acids fit the criterion, select "none".) O Lys His

Q: identify the amino acid described. state the name, one-letter abbreviation, and draw the structure…

A: In nature molecule which have carboxylic group as well as amine group is known as amino acid

Q: Three peptides were obtained from a trypsin digestion of two different polypeptides. In each case,…

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Q: Pentapeptide has a sequence of APEDS Structure of pentapeptide in its proper ionization state at pH…

A: The question is based on the concept of biomolecules. We have to draw pentapeptide and calculate…

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: Ala-Tyr-Cys-Phe-Glu-Asn-Arg-Gly-Ala-Lys | Gly-Ser-Cys-Trp-Met-Val-Gly-Ala-Val-Leu

A: The peptides obtained by specific chemical or enzymatic clevage are separated by some type of…

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

A: The chemical structure for peptide is shown below.

Q: A decapeptide undergoes partial hydrolysis to give peptides whose amino acid compositions are shown.…

A: There are some selective reagents which are mainly utilized to recognize the sequence of particular…

Q: Indicate the peptides produced from cleavage by the indicated reagent: a.…

A: Concept introduction: Amino acids are linked each other by peptide bonds is called protein (one or…

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

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Q: In the dreaded Zephyer galaxy there is a race of Fairies that have the ability to change their body…

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

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Q: Calculate the pH at which the e-amino group of lysine is 25% dissociated.

A: Step : 1             Calculate the pH at which the e-amino group of lysine is 25% dissociated.

Q: Part C. Give the structure of the following and encircle the peptide bond 1. Glycyl - Seryl - Valine…

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Q: Illustrate the structure of a peptide with the given sequence below at the given conditions.…

A: The proton of basic and carboxylic acid group of amino are ionizable

Q: Draw the structure of the following short peptide at pH 7.0. You don't need to show the…

A: At pH 5.0 the peptide chain of amino acid Ala-Asn-Glu-Val-Pro-Gly is as follows: At pH 5.0 the…

Q: Write the structure of each of the following peptides at pH 7:a. Glycyl-valyl-serineb.…

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

Q: consider the peptide show но но но но но .. .. .. +H3N-C-C-N-C-C-N-с-с-N-c-ё-N-с-с-о- I . Н H CH3 H…

A: see below

Q: A tetradecapeptide (14 amino acid residues) gives the following peptide fragments on partial…

A: So on partial hydrolysis, we will get separate amino acids peptide  chain  To get our main chain we…

Q: what is the overall charge on the peptide : Pro- Glu-Tyr-Gln-Arg at pH=11

A: A polypeptide or simply peptide is an entity that contains amino acids bonded to each other by…

Q: If an amino acid had the following side chain it would be identified as polar CH2 - OH A) True B)…

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Q: What is the predominant form of the following amino acids at pH= 11? What is the overall charge on…

A: The amino acids have two functional groups in them and they are amine(-NH2) the basic group and…

Q: which amino acids has a side chain that can serve as a hydrogen bond donor but not acceptor in its…

A: Hydrogen bond donor is the one which can donate hydrogen atom to form hydrogen bonding.  Hydrogen…

Q: A tetradecapeptide (14 amino acid residues) gives the following peptide fragments on partial…

A: Phe-Val-Asn-Gln-His, His-Leu-Cys-Gly-Ser, Gly-Ser-His-Leu-Val. The tetrapeeptide fragments formed on…

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

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Q: A peptide has the following amino acid composition: 2 Met, 2 Phe, 2 Glu, 1 Arg, 1 Lys, 1 Val, 1 Leu,…

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

Q: Give the systematic IUPAC name of the a-amino acid residue located on the N-terminal of this…

A: Interpretation -  To write the IUPAC name of the given α-amino residue located on N- terminal of…

Q: Match the products with the relative amounts that would be formed from complete hydrolysis of the…

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Q: Select the correct representation of this aminoacid in aqueous solution at the stated pH values. pk,…

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

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Q: what is the net charge of the peptide Arg-Ala-Phe-Leu at pH at 8?

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Q: A decapeptide has the following amino acid composition. Ala2, Arg, Cys, Glu, Gly, Leu, Lys, Phe, Val…

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Q: Following is the structure of a peptide with the name seryllysylaspartate. What is the amino acid at…

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Q: 1 2 peptide #1 hydrogen bond 26 residuesturn peptide #2 beta pleated sheet 3 Random coil a-helix 26.…

A: Structure 1 is of DNA . Structure 2 is beta pleated sheets . Structure 3 is of protein .

Q: b. Draw phi-psi angles about a valine from a short peptide indicating: 1) a phi-angle of+100° and 2)…

A: The phi-angle is referred as the dihedral angle between the groups attached to the nitrogen of the…

Q: Indicate which of the amino acid residues in the following peptide sequence contains a group that…

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Q: Which of the following peptides have a net positive charge at pH 7? (a) Gly-Ser-Lys

A: It is given that a tripeptide Gly-Ser-Lys is present and it needs to be determined whether it will…

Q: Which of the following peptides have a net positive chargeat pH 7? (a) Gly-Ser-Lys, (b) Pro-Leu-Ile,…

A: Among the 20 common amino acids, five have a side chain which can be charged. At pH=7, two are…

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

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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: What is the predominant form of the following amino acids at pH= 1? What is the overall charge on…

A: Amino acids are organic compounds containing -NH2  and -COOH groups. In neutral pH, the amino acid…

Q: What is the predominant form of the following amino acids at pH= 1? What is the overall charge on…

A: At isoelectric point, the amino acids exist in neutral form. The amine groups exist as -NH3+ and…

Q: identify the amino acid described. state the name, one-letter abbreviation, and draw the structure…

A: We have to identify the amino acid described. state the name, one-letter abbreviation, and draw the…

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

A: (a) The structure of peptide formed from methionine and threonine which is known as…

Q: Draw the structure of the dipeptide Thr-Cys at pH7. Make sure the following are clearly indicated:…

A: For peptide structure very left one should be N end and very right one should be C end. N end means…

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

A:

Q: Using the 3-letter symbols for amino acids, write out the sequences that would result if the peptide…

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Q: Three peptides were obtained from a trypsin digestion of two different polypeptides. indicate the…

A:

Q: What is the predominant form of the following amino acids at pH= 1? What is the overall charge on…

A: The predominant form of the following amino acids at pH= 1 has to be defined. The overall charge on…

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…