Serine is an uncharged, polar amino acid (below and left). Threonine (below and right) is anotheruncharged, polar amino acid. Illustrate the hydrolysis of a dipeptide that was made from these two aminoacids. Be sure to write all involved reactants and products in the structural form like Serine, and as a properchemical equation; eg. reactant(s) – product(s). Your diagram of the dipeptide must show the N-terminaland C-terminal ends at opposite sides of the dimer molecule, and you need to indicate where the peptide bondis with an arrow/highlighter.2.HC-NOH NH,ноCH,CH,-CH -C-COOHон

Amino acids are the building blocks of proteins which are composed of amino group (NH3+), carboxyl…

Answered: Serine is an uncharged, polar amino…

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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The breakdown of a complex carbohydrate into its monomeric unit can be described as an enzyme-catalyzed reaction that has a deltaG(∆G) of -90kcal/mol. Suppose you were to add triple the amount of enzyme into this reaction - what would be the ∆G of this reaction?
The ring structure of the carbohydrate glucose is provided below. Map any chiral centers with a 1.
The configuration of –OH group at the anomeric carbon of the cyclic form of sugars, which can be clearly depicted in Haworth projection, is designated as— A or B. Φ or Ψ. α or β. D or L. X or Y.
Which of the following define the stereochemistry of alanine (as per the structure shown)? Note: Functional groups arranged horizontally are facing towards the front, and the functional groups arranged vertically are facing towards the back. a) d- b) S- c) R- d) I-
Consider histidine as a free amino acid in aqueous solution. a) Draw the most likely structure of histidine under biochemical standard state conditions. Given that free histidine has the following three pKa values, assign each to its corresponding acidic hydrogen or conjugate base in the structure. pKa1 = 1.7; pKa2 = 6.2; and pKa3 = 9.1 b) For each pKa, give the corresponding expression for the equilibrium constant. It helps to write out the chemical equation for each. c) Create a speciation diagram for histidine by plotting Xi vs pH from pH = 4 to pH = 8 where Xi is the mole fraction of the two histidine species involved in the equilibrium constant in part b).
The following structure is sorbose Answer the following questions and briefly explain Draw β-D-sorbufuranose Draw β-D-sorbufuranosyl(2->1) β-D-glucopyranoside. Is this reducing sugar? What would be the probable function of this disaccharide, structural or storage?
Penicillin G is a natural antibiotic that is useful for treating infections caused by Gram positive bacteria. What is the functional benefit of the semi-synthetic antimicrobials carbenicillin and ampicillin, generated by chemical modification of the R group so their R groups each are a bit different than the R group seen with penicillin G?
Draw a glycerol bonded to two stearic acids and a phosphate group with an “R” group attached – forming a phosphatidyl ester, please show work
The structure of chitosan, a polymer used to eliminate protein clumps that create wine haze in white wine, is shown below. The amine functional group on chitosan has a pka of 6.5 in its conjugate acid form. What is the charge state of the amine group of chitosan in wine with a pH of 3.6, given the following acid-base reaction, where chitosan is abbreviated as R? (If you need it, the Henderson-Hasselbach connection is also provided.) [RNH2] [RNH;] NH2 RNH2 + H20 2 RNH + 0H- pH = pKa+ log OH n a) At pH 3.6, it is negatively charged; b) At pH 3.6, it is positively charged; c) At pH 3.6, it is both positively and negatively charged; d) At pH 3.6, it is neutral.
Let’s consider histidine as a free amino acid in aqueous solution. a) Draw the most likely structure of histidine under biochemical standard state conditions. b) Given that free histidine has the following three pKa values, assign each to its corresponding acidic hydrogen or conjugate base in your structure from part a). pKa1 = 1.7; pKa2 = 6.2; and pKa3 = 9.1 c) For each pKa, give the corresponding expression for the equilibrium constant. It helps to write out the chemical equation for each. d) Create a speciation diagram for histidine by plotting Xi vs pH from pH = 4 to pH = 8 where Xi is the mole fraction of the two histidine species involved in the K2 equilibrium in part c).
Given the following choices,a. what is the structure of the product of the reaction catalysed by ACAT?b. structure of the product produced from the reaction catalysed by phospolipase A2?c. general structure of TAGd. structure of glycerol
the following peptide is incubated as chymotrypsin: Gly-Val-Phe-Lys-Ala. Present the detailed chemical mechanism by which chymotrypsin hydrolyzes this peptide. Briefly explain each step. Include only the structure of the final products of the reaction.

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