titration of which amino acid is most likelyresponsible for switching a protein frombinding to a cation exchange resin to ananion exchange resin with a shift in ph valuefrom below pH 6 to above pH 6?a. glub.lysc. hisd. argе. asp

An ion exchange resin is a polymer that acts as a medium for ions exchange. They may be cation…

Answered: titration of which amino acid is most…

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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Give explanation of all four otherwise leave it
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Which of the following amino acid side chains CANNOT form hydrogen bond? O a. O b. C. Gln Tyr Pro d. Asn O Oe. Thr
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Small molecules are used as inhibitors of protein action - as drugs. They most often do this by blocking the active site within the protein. Potential drugs can be screened computationally to determine if they are strongly bound to the protein. Figure 1 shows a possible conformation of a candidate drug molecule, 4-bromo-2- carboxymethylamide-pyrrole (abbreviation: BCMAP) at the active site of a protein (abbreviation: PR). Figure 2 shows the full protein structure whilst figure 3 shows a known inhibitor of the protein at the site, overlayed with another calculated conformer of BCMAP. (a) Explain what types of interactions, both intermolecular and intramolecular, that a molecular mechanics forcefield must be able to describe in order to be able to accurately determine the geometry of BCMAP in the protein. Identify which interactions will be the most important to describe accurately. Figure 1.4-bromo-2-carboxymethylamide-pyrrole (BCMAP) (C, N, O, and Br atoms in yellow, blue, red, and…
Explain why unfolding or aggrrgation may occur using changes in entropy and enthalpy of the protein and water. a. The shift of a pH from pH 7 to pH 11 b. Addition of Triton-x (detergent) into buffer c. Raising the temperature of the solution from 25 C to 100 C
Arginine is considered a basic amino acid because its side chain ________ at physiological conditions (around pH 7). a. is protonated b. has a low pKa c. proton is titrated away d. is hydrophobic
Which of the following statements is true? Select any/all answers that apply. O A. Both Mb and Hb bind 02 cooperatively. O B. Mb and Hb have similar affinities for BPG (2,3-bisphosphoglycerate). O C. Both Mb and Hb transport oxygen within the blood. O D. A single Mb molecule and a single Hb subunit have similar tertiary structures. O E. Both Mb and Hb contain multiple oxygen-binding sites.
Which of these peptides contain an amino acid with a side chain IMIDAZOLE? А. Охуtocin B. Vasopressin Based on amino acid composition, what is the overall charge of vasopressin? A. Negative C. Hard to tell D. Either A or B C. Neutral B. Positive D. Either A or B
Why does enzyme activity decrease because of pH changes? A. Disruption of hydrogen-bonding interactions between amino acids that are polar-uncharged and charged. B. Disruption of electrostatic interactions between charged amino acids C. Disruption of hydrophobic interactions between nonpolar amino acids. D. Both A and B E. All of these
Which of the following is incorrect about the peptide Arg-Asp-Cys-Tyr-Gln-Arg-Glu? It has six peptide bonds b. It has a net charge of zero at pH 7 It has six charged groups at pH 7 d. None; all the other choices are correct a. C.

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titration of which amino acid is most likely responsible for switching a protein from binding to a cation exchange resin to an anion exchange resin with a shift in ph value from below pH 6 to above pH 6? a. glu b.lys c. his d. arg е. asp