Only 500% sure experts solve it correct Handwritten.PART A.Write the structure of the following peptides in a bond paper and upload as pdf file.Expanded structure.Use red ink for peptide bond. [For your reference download all the amino acids with the three and single letter symbol](possible points 9)a) threonyl leucyl asparagyl alanineb) glycyl tyrosyl histidyl glutamic acidc) phenylalanyl valyl arginyl seryl tryptophan

Peptides and Amino AcidsAmino acid monomers are joined into small chains called peptides by peptide…

Answered: Handwritten. PART A. Write the…

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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Description Please draw the structure of the 19 L-a-amino acids and proline in any form, as you prefer. You may want to use a letter-size sheet or larger, it's up to you. Guiding principle: You want to understand the differences among amino acids. Although you may want to only draw the R-group it's preferable to draw it along with the rest of the molecule (i.e., the Ca, the amino group and the carboxyl group). Here are some examples (your drawings should not limited to the following styles): H₂C NH₂ OH shutterstock.com-222977980 Alanine H H Proline OH %%% lysine a alamy stock photo Tryptophan HN NH₂ shutterstock.com-1819000134 QH COOH H₂N-C- H CH ₂ Phenylalanine H₂N NH dreamstime.com arginine NH₂ OH
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. B. A polypeptide consisting only of L-glutamate residues (poly-L-glutamate) may have a random coil or helical structure depending on pH. Explain this behavior by indicating at what pH values the helical structure will be favored.
NOTE: PLEASE SEND. CLEARER IMAGE PLEASE THANK YOU SOMUCH 2. Structural representation of tetrapeptide Phe-Met-Tyr-Asn
Pro-Ser-Ala-Phe-Glu. Draw this peptide at pH 7 and include its stereochemistry.
E. PROTEIN PRIMARY STRUCTURE ELUCIDATION. 1. Determine the primary structure of the protein described below. Write the final sequence using the corresponding three-letter code for each amino acid. Example: M-F-Y-R should be written as Met-Phe-Tyr-Arg Treatment with cyanogen bromide and sequencing yields the following peptide fragments: o D-M o R-A-Y-G-N o L-F-M Chymotrypsin digestion and sequencing yields the following peptide fragments: o G-N D-M-L-F o M-R-A-Y o o
PRACTICE NAMING. Identify the number of amino acids, number of peptide bonds, and name the peptide. i.e. Ala-Cys • Dipeptide • 1 peptide bond • Alanylcysteine Cys-tyr-phe-gln-asn-cys-pro-arg-gly
Protein-4YU4 is given, choose a part of it (containing at least 30 amino acid residues), find the amino acid sequence (sequence in it), identify what functional groups the amino acid substitutes contain (carboxyl group and 2-position the Nitro group will form amide bonds, forming the covalent basic structure of the protein). What different interactions can occur between these functional groups? How will it relate to the spatial structure of the protein?
Asp-Gly-Lys-Glu-Ile-Phe Draw its full chemical structure as it would exist at pH = 7.0. Draw an arrow pointing to each peptide bond. Identify the net charge of the peptide and briefly explain how you arrived at this answer.
Identify. Examine the following four amino acids (A-D): Co0 "H,N- CH "H,N CH "H;N-CH "H,N CH CH2 CH2 CH, CH CH2 CH3 CH, CH2 OH NH," B D What are their names, three-letter abbreviations, and one-letter symbols?
Draw any pentapeptide. All C-O, C-N, and C-S bonds must be written out, as well as all N-H, S-H, and O-H atoms/bonds. Your peptide must include at least one amino acid from each of the major classes of amino acids (i.e. charged, polar, etc.). Circle each peptide bond in this peptide.
Consider Isoleucine, structures are provided for the 4 stereoisomers, complete the table by assessing the R/S Configuration and assign appropriate Amino Acid name, choices are: L-Isoleucine, L-Allo Isoleucine, D-Isoleucine, D-Allo Isoleucine
Draw peptide Pro-Ser-Ala-Phe-Glu as you would see it at pH 7. Include stereochemistry.

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