1.2.3.4.5.6.The Ramachandran plot indicates:The preferred conformationsabout C1-C bondThe preferred conformationsabout peptide bondThe preferred conformationsabout CE-N bondThe combined preference forC1-C and C-NThe 1857 conspiracy againstthe British rule in IndiaNone of the above

phi (Φ) and psi (ψ) angles are known as dihedral angles. They dictate the peptide conformation. phi…

Answered: 1. 2. 3. 4. 5. 6. The Ramachandran plot…

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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Similar questions

In the peptide shown below, a covalent bond that could rotate to form secondary structure is correctly identified / labeled by letter: A B OH still fot D OB OC O O O B D F C OA HN E NH OH "NH₂ - F
In the peptide shown below, a covalent bond that could rotate to form secondary structure is correctly identified/labeled by letter: с E OH Thill find -OH HN NH "NH₂
Which of the following statements concerning the peptide NH3*-Val-Ala-Gly-Lys-Leu-Gly-Val-Phe- Tyr-lle-COOH is correct? O The peptide can form an alpha-helical secondary structure O The peptide can form a beta-pleated sheet O The last amino acid residue is Val. O Three peptide linkages are present.
Draw the following amino acids interactions: 1. H-bond - between -0H of Serine amino acid and C=0 backbone of glutamic acid. 2. Ionic bond- between ionized aspartic and asparagine amino acids. 3. Disulfide interaction between 2 molecules of Cysteine amino acids. 4. Hydrophobic interaction between Alanine and Leucine R-groups.
Given the following peptide, answer following questions 1-5: CO CH2 O || CH2 O H3N-CH-C-NH- CH-c-OCH3 | 1. Is this a dipeptide or tripeptide? 2. How many amino acid components/residues are there? 3. Name these amino acids. 4. What kind of bond links these amino acids? 5. The above structure represents the major ingredient in some commercial product(s). Identify the name of this major ingredient or the commercial product(s). Given that the hemagglutininin protein in influenza virus contains a remarkably long a-helix with 53 residues, answer questions 6-7. 6. How long is this a-helix (in nm)? Show all calculations. 7. How many turns does this helix have? Show all calculations.
Draw the structure(s) of the following amino acids (Asp, Lys, Phe, and Val) at pH 3.5, pH 6.5, and pH 10.5
Why is the peptide bond so stable in water?
Arginine has three ionizable groups. The pK of α-COOH is 2.18; α-NH 3 + , 9.09; and the R-group, 13.20. What is the isoelectric point of arginine?
Write the chemical structure of peptide containing the following amino acid PRO-SER-GLY-LEU I NEED IT ASAP PLEASE
Draw the two dipeptides possible when glutamine and cysteine undergo dehydration to form a peptide bond. Draw the dipeptides in zwitterionic form.
Refer to following peptide structure: H&N CH3 IZ CH3- CH₂OH IZ OH ZI CH3 CH3. OH IZ OH IZ CH2 CONH2 parce 0 IZ Calculate the net charge of this peptide at pH = 12. OH CH3 What is the identity of the second residue in the peptide shown below? Enter the capitalized single letter abbreviation. 0- Estimate the pl and round to the nearest whole number. Use pKa values provided in lecture.
A pentapeptide has a titration curve that shows five inflection points for five equivalents of hydroxide added. How many residues have ionizable groups within their side chains (R-groups) based on this information?

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1. 2. 3. 4. 5. 6. The Ramachandran plot indicates: The preferred conformations about C1-C bond The preferred conformations about peptide bond The preferred conformations about CB-N bond The combined preference for C1-C and C-N The 1857 conspiracy against the British rule in India None of the above