Biochemistry: The Molecular Basis of Life
Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 3, Problem 53TQ
Summary Introduction

To review:

The reason behind the hydrated volume of sodium ion (Na+) being 3.4 times greater than that of the potassium ion (K+), even though the charge on both the ions is the same.

Introduction:

A biomolecule (such as protein) has some associated ions attached, to maintain its functionality. When such a biomolecule is present as a solute, it results in the formation of a solvation shell. This shell forms a solvent interface with the biomolecule present in the solvent.

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Two tetrapeptides were isolated from a possum's sweat glands. These peptides were sequenced using Edman degradation and the following 2 sequences were obtained: Gly-Asp-Ala-Leu  Gly-Asp-Asp-Leu  Can you please help show the titration curve for both of these peptides and calculate the PI?
Two tetrapeptides were isolated from a possum's sweat glands. These peptides were sequenced using Edman degradation and the following 2 sequences were obtained: Gly-Asp-Ala-Leu  Gly-Asp-Asp-Leu  What is the structure of the PTH derivative produced during the last round of amino acid sequencing?
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Biochemistry: The Molecular Basis of Life

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