Name:Protein Structure1. Draw the structure of each peptide below at pH 7.0. Using the structure, predictwhich peptide is more soluble in water at pH 7.0. Explain why using chemical details.RISKPALM

The short sequence of amino acids linked together by a peptide bond is referred to as peptides.…

Answered: Protein Structure Name: 1. Draw 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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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
Protein Concept Map Add these terms to your concept map should include these concepts and details: Structure (functional groups, shape); Monomer; Linkage; Properties; Functions; Key terms from the Partial List of Key Terms from the Minds Partial List of Key Terms essential amino acid amino acid side group/R-group peptide bond polypeptide receptor neurotransmitter hormone secondary structure tertiary structure quaternary structure fair test hydrophobic hydrophilic intermolecular force of attraction
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.
Prepare & define the beta pleated structure of protein with examples
Figure 7 shows one additional type of bond that can stabilize the tertiary structure of a protein. This bond is called a disulfide bond (or disulfide bridge), and it involves the sulfhydryl (-SH) R groups from one particular type of amino acid. A disulfide bond can form only under certain conditions (oxidative conditions). We'll talk about oxidation and reduction next week. For now, just note that this type of bond does exist in some proteins. Answer the below questions on tertiary structure in your own document. 8. Figure 6 shows examples of bonds that might stabilize the tertiary structure of a protein (labeled A, B, and C). Do these interactions involve only the amino acid R groups, only the polypeptide backbone atoms, or both? 9. In the table below, indicate what type of bond/ interaction is represented in the examples shown in Figure 6, panels A, B, and C and whether each interaction involves group or backbone atoms. Example Type of Bonding Interaction R group or backbone? A В 10.…
Consider the peptide EAHIVR. Write out the sequence of the peptide from N to C in three letter code. Draw the complete structure of the peptide including all peptide bonds and side chains at pH 8.0. Calculate the pI of this peptide. Calculate the net charge of this peptide at pH 2, pH 7, and pH 11.
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.
draw the primary structure of the polypeptide at physiological pH range of 7/35-7/45 using condensed structures 3-letter abbreviations with a hyphen representing peptide bond give the name of the peptide, determine the net charge, and calculate the isoelectric point DEHINS
GTTTTCACTGGCGAGCGTCATCTTCCTACT 10. Generate a secondary structure prediction for one identified protein.
Prepare & define the alpha-helical structure of protein with examples
Loop regions play important roles in the secondary structure of protein. Define loop region and give three (3) of the roles
WRITING EQUATIONS USING MOLECULAR STRUCTURES DIRECTION: Given the following biomolecules below, write the DENATURATION SYNTHESIS OF PROTEIN using molecular structures with the required number of units. You can write either horizontal or vertical position. Dehydration synthesis of protein with 3 units

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Protein Structure Name: 1. Draw the structure of each peptide below at pH 7.0. Using the structure, predict which peptide is more soluble in water at pH 7.0. Explain why using chemical details. RISK PALM