A) Refer to the figure below, Identify and explainthe two types of reactions, and describe what arethe importance of these reactions to ourbodies.Reaction 1HMonomerReaction 2HHOH + HHH₂OHH₂OOH + HHOHOH + HH₂OH₂OOHOH + HOHOHOHOHB) What are the main chemical interactions thatdetermine and maintain the quaternary structureof proteins. Also, what are the conditions that canalter these interactions? [

Metabolic reactions are the chemical reactions that take place in our body for the conversion of…

Answered: A) Refer to the figure below, Identify…

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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1)Ubiquitin is a small protein with a monoisotopic mass of 8560 Da. a) Electrospray ionization of this small protein typically results in major charge states of +8, +9, +10, +11, +12, and +13. Using this information, complete the table below, assuming the charges on each come from protonation. Report mass and m/z values to the ones place. b) Using the data you entered in the table, sketch an expected ESI-MS spectrum for ubiquitin. Label each peak with its charge state. What do you notice about the spacing of peaks along the x-axis. c)The figure shows an experimentally obtained electrospray mass spectrum for ubiquitin. Compare this spectrum to the spectrum you predicted. Are there any differences? If so, what might cause these differences?
III. Protein: QQICIMFELTQISS Predict the products of the following reactions with the protein given, if there is none, write NO RXN. Also indicate, if the reaction is fast or slow. 9.) КОНРЫ(СH-CО)» 10.) Glyoxilic Acid/Conc. H2SO4
1. The R group of the amino acid lysine is: -CH2-CH2-CH2-CH2-NH2. Draw the structure of lysine, including the sites of ionization, under the following conditions: 16 NI a) strongly acidic solution; b) neutral solution; c) strongly basic solution Drifed them ard What are the results of the following test on lysine? c) nitroprusside a) ninhydrin; b) biuret;
Proteins that are synthesized by living organisms adopt abiologically active conformation. Yet when such moleculesare prepared in the laboratory, they usually fail to spontaneously adopt their active conformations. Can you suggestwhy?
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
Explain how a protein is denatured by the following: (a) Heat(b) Strong acids (c) Organic solvents
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
What chemical is used for reduction of disulfur bridges in protein?
One or more of the compounds shown below will satisfy each of the following statements. Not all compounds may be used; some may be used twice. Put the number(s) in the blank. (1) Found in chitin. (2) An L-saccharide. (3) The first residue attached to asparagine in N-linked glycans. (4) A uronic acid. (5) A ketose. CH,OH CoO COO OH H H H H ОН Н но OH OH H OH H HO OH H NHC- CH, Oso, OH (a) (b) (c) CH,OH CH,OH CH,OH C=0 CHOH C=0 H-C- OH CH,OH но -с-н ČH,OH CH,OH (d) (e)
2) What is glycoside ? In neutral and basic solutions, glycosides do not show mutarotation. However, if the solutions are made acidic, glycosides show mutarotation. Explain why? And write a mutarotation mechanism.
Most protein dissolve in neutral salt solution, is that true? Provide reasoning
Draw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram.C) Show/Indicate the type of linkages per structure (put an arrow). 4) Sphingolipid/Sphingophospholipid (use sphingosine, myristic acid, phosphate, and choline for amino alcohol);

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