Please don't provide handwriting solution The peptide belowH3N-CH-NH- -CH-NH–CH=C-NH-CH=CCH3CH2CH2CH2NH—CH-CH2-C-OHHOCH2CH-OHCH2H3CCH3NH2needs to be separated from a second peptide with a primary sequence ADES.At what pH range would it be possible to separate the peptides?2.5-3.510.0-12.00-2.04.0-9.013.0-14.0

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

Answered: The peptide below 요 H3N-CH- -NH- -CH-…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Peptide A: V-E-S-A-L-D-I-F-R-T-A-L-S Peptide B: S-E-P-P-T-E-G-P Peptide C: T-L-S-A-R-I-D-V Suppose that peptides A, B and C are peptides in a globular protein. Give a possible structural motif or supersecondary structure that can be formed by repeating units of the given three peptides.
Thr-Lys-Pro-Ile-Val-Ala-Pro-Met-Glu-Tyr-Gly-Lys Write the sequence using one-letter abbreviations. sequence: TLPIVAPMGYGK Incorrect Estimate the net charge on the peptide at pH 7. charge at pH 7: +1 Estimate the net charge on the peptide at pH 12. charge at pH 12: 0 Incorrect
A peptide in a solution with a pH of 7 has the following sequence: K-R-E-D-H-D-E (Lys-Arg-Glu-Asp-His-Asp-Glu). To get to the pI, you would need elevate the pH.
Draw the structure of the peptide: Val-His-Leu-Thr-Pro-Val-Glu-Lys-Ser-Ala-Val-Thr What is the significance of the peptide described?
A peptide has the sequence Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Gly The pK₁ values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table. Amino acid Amino pKa Carboxyl pKa Side-chain pKa glutamate 9.60 2.34 4.25 histidine 9.17 1.82 6.00 9.39 2.38 9.15 2.21 9.60 2.34 9.60 2.36 9.04 2.17 10.96 1.99 tryptophan serine glycine leucine arginine proline Calculate the net charge of the molecule at pH 3. Calculate the net charge of the molecule at pH 8. 12.48 net charge at pH 3: net charge at pH 8:
A peptide has the sequence Glu-His–Trp–Ser-Gly–Leu-Arg-Pro–Gly The pK, values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table. Amino acid Amino pKa Carboxyl pKa Side-chain pKa glutamate 9.60 2.34 4.25 histidine 9.17 1.82 6.00 tryptophan 9.39 2.38 serine 9.15 2.21 glycine 9.60 2.34 leucine 9.60 2.36 arginine 9.04 2.17 12.48 proline 10.96 1.99 Calculate the net charge of the molecule at pH 3. net charge at pH 3:
Draw the structure of this peptide: N-Met-His-Tyr-Leu-Asp-Ser-Arg-Leu-C
The sequence of a 29 aa long peptide can be determined from the following data: Treatment of the peptide with dansyl chloride reveals that the amino-terminal is Val. Trypsin digestion, separation of peptides, and Edmann technique give the sequences for peptide fragments as follows: T-1 V-G-A-H-A-G-E-Y-G-A-E-A-T-E T-2 A-A-W-G-KT-3 V-L-S-P-A-K T-4 T-N-V-K
A peptide in a solution with a pH of 7 has the following sequence: K-R-E-D-H-D-E (Lys-Arg-Glu-Asp-His-Asp-Glu). To get to the pI, you would need elevate the pH. True or False
Which peptide has a larger pI? Arg-Gly-Gly-Gly or Gly-Gly-Gly-Arg why?
Draw the polypeptide T-R-I-P at pH of 7. Label each residue with the 3-letter code, label the N- and C-termini. What is the isoelectric point of this peptide?
PEPTIDE #1: Pro-Phe-Thr-Cys PEPTIDE #2: Gly-Tyr-Ser-Asp Calculate the pI of both peptides. Which is more acidic and why? Which one is more hydrophobic? Which peptide sequence (#1 or #2) would be more likely situated on the surface of the protein?

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