4In the alpha helix shown below, all carbonyl groups are pointingamino groups are pointingUpwards; DownwardsDownwards; DownwardsO Downwards; UpwardsUpwards; Upwards___, and

Proteins show four levels of structural organisation. Primary level of organisation involves the…

Answered: 54 In the alpha helix shown below, all…

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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Amino acid Polarity Phenylalanine non-polar 165 Leucine molecular Size Should it re weight rank with ninhyc polar, Aspartic Acid negatively 133 charged Proline non-polar 131 non-polar 115 14 2 1 yes, the col of the soluti changes to 1 black yes, the colo of the soluti changes to l black yes, the col of the soluti changes to 1 black yes, but will give yellow colour
You are presented with Cytidine 5' triphosphate and Thymidine 5' triphosphate. Draw and upload to Efundi these phosphorylated structures as they would be connected in a polinucleotide in the order CpT / Show the individual phosphorylated structures first then show how they combine to form the polynuleotide. Show at any one of these structures where the glycosidic bond occurs
61.13
(A) Give the polypeptide translation of the RNA sequence below. 5’-AUGGAAAUCAAAGUCAACCUUGAGUUUAGA-3’ (B) Write the chemical structure of the polypeptide sequence you determined in part (a) (C) Given the chemical structure of the polypeptide sequence you have written in part (b), answer True or False for each of the 5 statements below. (1) At least one of the amino acids in the sequence can undergo phosphorylation (2) The sequence looks like it could form a β turn (3) The sequence looks like it could form a β strand with one surface facing the interior of the protein and the other surface exposed to water (4) At least one of the amino acids in the polypeptide sequence can undergo oxidation to form a disulfide bridge to another polypeptide (5) The sequence looks like it could form an α helix that would be part of a coiled coil structure within a protein
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6 (a) A decapeptide has the following amino acid composition: Ala2 , Arg, Cys, Glu, Gly, Leu, Lys, Phe, Val Partial hydrolysis yields the following tripeptides: Cys-Glu-Leu + Gly-Arg-Cys + Leu-Ala-Ala+ Lys-Val-Phe + Val-Phe-Gly. Reaction of the decapeptide with 2,4-dinitrofluorobenzene yields 2,4-dinitrophenylysine. From the experimental data, deduce the primary structure of the decapeptide. (b) Suggest a scheme you will follow to synthesize the dipeptide Ala-Gly
Referring back to the quaternary level proteins, list and describe the modifications that can be made to a secondary proteins to make it a tertiary protein

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54 In the alpha helix shown below, all carbonyl groups are pointing_ amino groups are pointing_ Upwards; Downwards Downwards; Downwards Downwards; Upwards Upwards; Upwards , and