13. One or more of the compounds shown below will satisfy each of thefollowing statements. Not all compounds may be used; some may beused twice. Put the letter(s) in the blank.(a) Found in chitin.(b) An L-saccharide.(c) The first residue attached to asparagine in N-linked glycans.(d) A uronic acid.(e) A ketose.CH,OHCOOCO-HOHHOHОН НноOHOHHHноOHНо- CH3óso,NHC-OH(a)(b)(c)CH,OHCH,OHCH,OHc=0CHOHC=0H-C-OHCH,OHно-с—нČH,OHCH,OH(d)(e)(f)우

Carbohydrates are polyhydroxy aldehyde or polyhydroxy ketone or compounds producing them on…

Answered: 13. One or more of the compounds shown…

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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25) Below are two amino acids: cysteine and histidine. a) Draw the reaction mechanism of a dehydration synthesis reaction between cysteine and histidine below: HS H Product 1 N OH HN H b) Draw two different products of the dehydration synthesis reaction from part a). Prove that these are two different products by labelling the N and C termini, peptide bond, and R-groups of each product. Product 2 OH
The structure below shows that of a trisaccharide that is composed of (going from top left to bottom right) galactose, glucose, and fructose. More specifically, the component monosaccharides are [D-galactose, L-galactose], [D-glucose, L-glucose], and [D-fructose, L-fructose] .
1. Draw the tetrapeptide Met-Ala-Thr-Thr at a ph of 7? 2. Draw the tetrapeptide Met-Ala-Thr-Thr at a ph of 12?
2. | Calculate the overall charge (pH 7) on the following three polypeptides and answer the questions below. Assume the following pKa values: N-terminal -NH3®, 7.0; all -COOH groups, 4.0; Arg, 12.5; Cys, 8.4; His, 6.0; Lys, 10.0; Tyr, 10.0. (A) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-Gly-Lys-Lys-Arg-Arg-Pro-Val-Lys-Val-Tyr-Pro-Asp-Ala -Gly- Glu-Asp-Gln- Ser-Ala-Glu-Ala-Phe-Pro-Leu-Arg-Glu-Phe (B) Ser-Tyr-Ser-Met-Glu–His-Phe-Arg–Trp–Gly-Ala-Pro-Val-Gly-Glu-Glu-Cys-Asp-Pro-Val-Glu–Val-Tyr-Pro-Asp- Ala-Gly-Glu-Asp-Gln-Ser-Ala-Glu-Ala-Phe-Pro-Leu-Glu-Phe-Cys-Ser-Tyr-Ser-Met-Glu-His-Phe-Asp-Trp-Gly- Asp-Pro-Val-Gly-Pro-Asp-Ala-Gly-Asp-Gln-Pro-Val-Gly-Glu-Glu-Cys-Asp-Pro-Val-Glu-Val-Tyr-Pro-Asp-Ala | (C) Gly-Ser-Val-Arg-Asp-Pro-Val-Lys-Glu–Val-Tyr-Pro-Asp- Lys-Ala-Gly-Arg-Glu-Ser-Arg-Ala (a) Which of the three peptides would elute first from a gel filtration column? (b) Which of the three peptides would migrate the fastest on SDS-PAGE (c) Which of the three peptides could be…
6. Which class or reactions results in the degradation of all macromolecules: a) dehydration synthesis of monomersà polymers with the loss of an H2O with the addition of each monomer b) hydrolysis with the addition of one H2O for each reaction c) oxidation with the loss of an e- d) reduction with the gain of an e-
25) Below are two amino acids: cysteine and histidine. a) Draw the reaction mechanism of a dehydration synthesis reaction between cysteine and histidine below: HS H Product 1 OH ox HN H b) Draw two different products of the dehydration synthesis reaction from part a). Prove that these are two different products by labelling the N and C termini, peptide bond, and R-groups of each product. Product 2 OH
2. | Calculate the overall charge (pH 7) on the following three polypeptides and answer the questions below. Assume the following pKa values: N-terminal –NH3®, 7.0; all -COOH groups, 4.0; Arg, 12.5; Cys, 8.4; His, 6.0; Lys, 10.0; Tyr, 10.0. (A) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys–Pro–Val–Gly–Lys–Lys–Arg-Arg-Pro-Val-Lys–Val-Tyr-Pro-Asp-Ala -Gly- Glu-Asp-GIn– Ser-Ala-Glu-Ala-Phe-Pro-Leu-Arg-Glu-Phe (B) Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Ala-Pro-Val-Gly-Glu-Glu–Cys-Asp-Pro-Val-Glu–Val–Tyr-Pro-Asp- Ala-Gly-Glu-Asp-Gln-Ser-Ala-Glu-Ala-Phe-Pro-Leu-Glu-Phe-Cys-Ser-Tyr-Ser-Met-Glu–His-Phe-Asp-Trp-Gly- Asp-Pro-Val-Gly-Pro-Asp-Ala-Gly-Asp-Gln-Pro-Val–Gly–Glu-Glu-Cys-Asp-Pro–Val-Glu–Val–Tyr-Pro-Asp-Ala (C) Gly-Ser-Val-Arg-Asp-Pro-Val-Lys-Glu-Val-Tyr-Pro-Asp- Lys–Ala-Gly-Arg-Glu-Ser-Arg-Ala (d) Which of the three peptides would migrate the closest to the anode in isoelectric focusing? (e) Which of the above peptides would elute last from a gel filtration column? (f) Which of the three…
4. What type of tertiary structure interactions are most likely between the following amino acids? (Use a reference chart as necessary.) (b) methionine and methionine (a) glycine and valine (d) serine and lysine (c) cysteine and cysteine

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