please help 3. Below is a polypeptide with an unknown number of amino acids. (Standard 4) One thediagram below:H₂N*-ICH₂1OHa. Circle EVERY peptide bondb. Circle and number each amino acid from 1, 2, 3, and so on; from left to rightc. Label each amino acid as polar, non-polar, or electrically charged. Label the N-terminus and C-terminuse. Select three pairs of amino acids that could potentially interact to influencetertiary structure AND state the bond/force/interaction type involved in each pair.OHH O HHO|| ! | ||||-N-C-C-N-1CH₂CH₂OHStandard 3 MaterialCH₂I4. For the reaction below:SHHOHHOH HOHH OHH|||| | ||¿-C-N-||1-C-C-N-1CH3CH₂HO CH3CH₂|CH₂ICH₂|NH|C=ANH,NH₂CH₂ISHHa. How many non-polar and polar bonds are in the reactants?b. How many non-polar and polar bonds are in the products?c. What is the enthalpy (AH) of this reaction? What is your evidence for thisresponse?d. What is the entropy (AS) of this reaction? What is your evidence for thisresponse?e. Is the reaction below spontaneous/non-spontaneous and endergonic/exergonic?f. Is carbon being oxidized or reduced? Why?

A peptide is polymer of amino acids linked by a peptide bond. A peptide bond is formed due to…

Answered: 3. Below is a polypeptide with an…

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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Draw a ribbon structure for the following polypeptide. There’s more than one answer to this question, make sure you are able to support your answer. Don’t have to write out the amino acids, just draw a line or ribbon, should include some numbers to indicate specific amino acids that you think will interact.
6) Circle one amino acid in this peptide (hint: draw lines between not through atoms). Kahalalide F NH HN HO NH HN HN
Write out the sequence of the polypeptide in AA: use the three letter notation, e.g. Met-Ser-Pro-
a. A tetrapeptide is abbreviated as PSQE. Write the name of the amino acid at the N-terminal end. b. A tetrapeptide is abbreviated as FRWL. Write the name of the amino acid at the C-terminal end.
Draw: Amino-terminus on the left, Carboxy-terminus on the right L-Ala (aka S-alanine)D-Ala (aka R-alanine)Ala-Ala dipeptide
You will now build a 15 amino acid peptide using another paper or wire backbone as you did above. You will pick 15 amino acids, matching the criteria below, and put them onto your backbone about 3 inches apart. This will be the primary structure of your novel protein. Select 15 amino acids that meet the following criteria 6 hydrophobic R groups 2 acidic R groups 2 basic R groups 2 cysteine R groups 3 hydrophilic R groups Place the R groups in any order you choose on your paper or wire backbone as you did above. Start at the N-terminus and place each R group about 3 inches apart until all 15 are attached to the mini toolbar. You have just built the primary structure of your protein. Question 1: Record the sequence of amino acids in your protein, starting with the N-terminus. The N-terminus is the end of the polypeptide that has a free nitrogen group. The C-terminus, or carboxyl end, will have a free carboxyl group. You can use the three letter amino acid abbreviation to…
Identify which amino acid pairs below will not form R-group interactions necessary for the tertiary structure of a protein. threonine and valine glutamine and asparagine phenylalanine and arginine serine and tyrosine
Please describe what is a peptide bond? What is the significance of the amino terminus versus the carboxy terminus? At which end are amino acids added to form a polypeptide, this is the term for linked amino acids? What are the 3 chemical groups that form an amino acid? A▾ B I I @ & 7
Draw at least 2 amino acids. Label the N-terminus and the C-terminus. Describe the property of the amino acids.
What to submit: Draw in the hydrogen bonds for parallel and antiparallel sheets and replace the current image with new ones. Underline the correct sheet type. Submit as an image or PDF. Label the amino acids in the following peptide using their three-letter and one letter code H₂N OH Three Letter Code - One Letter Code - ZI IZ ZI NH₂ Draw out the following peptide (CHARLIE) from N to C terminus. Draw by hand and upload as a file attachment. What is the net charge of your peptide? net charge:+
A student was asked to draw the structure of the amino acids serine (R group is -CH₂OH) and glycine (R group is -H) linked by a peptide bond. The student was asked to place glycine at the N terminus and serine at the C terminus, label the peptide bond, and label the N- and C-termini. The student's drawing is shown below. Which of the following errors need to be corrected in the student's drawing? Check all that apply. Don't get overwhelmed by the number of options; just consider them one at a time. H H H peptide bond || N terminus H-N-C-C-N-C-C I | H H H-C-H I O-H C terminus OH The nitrogen flanking the peptide bond should be connected to hydrogen via a single bond as opposed to oxygen via a double bond The positions of the N and C flanking the peptide bond should be swapped the labels on the N and C termini need to be swapped a positive charge should be added to the N terminus The alpha carbon of glycine is missing a proton The peptide bond should be shifted one bond to the right The…
draw a “trans” and a “cis” peptide bond of alanine and threonine with the peptide bond lying in the plane of the paper. Draw a second view of each peptide bonds now looking down/along the peptide bond (i.e. one atom of the peptide bond will be in front and will obscure the second one behind it). Using a circular arrow, demonstrate how the torsion angle can be directly “read” from the picture. You can do this with an accuracy of ~10°. Provide an explanatory caption.

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