Genetics: From Genes to Genomes, 5th edition
Genetics: From Genes to Genomes, 5th edition
5th Edition
ISBN: 9780073525310
Author: Leland H. Hartwell, Michael L. Goldberg, Janice A. Fischer, Leroy Hood, Charles F. Aquadro
Publisher: McGraw-Hill Education
bartleby

Concept explainers

Question
Book Icon
Chapter 15, Problem 31P
Summary Introduction

a.

To draw:

The recombinant plasmid that indicates the order of the four components and their arrangement in relation to the plasmid vector.

Introduction:

Erythropoietin, which is a human protein stimulates the production of red blood cells. The idea is to make a bacterium that produces this protein, and this recombinant bacterium can be used for the treatment of anemia patients.

Summary Introduction

b.

To determine:

The element that encodes the ribosome binding site for the mRNA making the fusion protein.

Introduction:

The recombinant plasmid was made to contain coding sequence for human erythropoietin, the regulatory sequence of the lac operon, a sequence encoding E.coli maltose-binding protein, and a sequence encoding a series of five amino acids. These sequences were transformed in the recombinant plasmid to induce the expression of a tagged fusion protein N MBP-DDDDK-erythropoietin C.

Summary Introduction

c.

To determine:

The elements out of given four that should be placed in the same reading frame with respect to each other.

Introduction:

The four elements present in the recombinant DNA molecule include coding sequence for erythropoietin, a sequence encoding the maltose-binding protein in E.coli and a series of five amino acids, and the regulatory sequence for lac operon.

Summary Introduction

d.

To determine:

Whether the erythropoietin coding sequences can be obtained from a human genomic DNA or from a human cDNA clone.

Introduction:

The creation of cDNA clones occurs in three major steps known as the synthesis, cloning, and validation. The cDNA clones contain open reading frames and untranslated regions.

Summary Introduction

e.

To determine:

The compound that could be used for inducing expression of the fusion protein and giving a reason about adding the compound to the medium before seeding with E.coli cells or after reaching the population of cells to high density.

Introduction:

The fusion protein that has to be made in the recombinant E.coli producing erythropoietin protein is N MBP-DDDDK-erythropoietin C.

Summary Introduction

f.

To determine:

The process by which fusion protein can be purified away from the other E.coli proteins.

Introduction:

The cells that express the fusion protein also contain many other E.coli proteins. It is considered to be important to purify the drugs away from the contaminants. It is known that MBP tightly binds to the sugar maltose and this maltose can be attached to an insoluble resin.

Summary Introduction

g.

To determine:

The way by which enterokinase can be used to separate the erythropoietin away from the rest of the fusion protein and then perform the purification of the desired pharmaceutical.

Introduction:

It is been studied that the human erythropoietin should not be attached to any other amino acid sequence. So, a protein known as enterokinase is used to cleave the proteins just C-terminal to DDDDK.

Blurred answer
Students have asked these similar questions
The DNA chromosome in E. coli contains approximately 4 million base pairs. The average gene contains about 1500 base pairs. Use this information to calculate the following (show all work ): a) The length in meters of this chromosome. b) The approximate number of genes in the chromosome (assuming no wasted DNA).
The cancer drug melphalan is an alkylating agent of the mustard gas family. It acts in two ways: by causing alkylation of guanine bases and by cross linking DNA strands together. Describe two ways in which melphalan might kill cancer cells. What are two ways in which cancer cells could repair the DNA-damaging effects of melphalan?
Ethanol (CH3-CH2-OH) is miscible in water because it is able to form hydrogen bonds with itself and other molecules.  However, its structure only allows it to form 1-2 hydrogen bonds.  This is one reason why even low concentrations of ethanol in solution are lethal for cells.  Based on this information, explain why we can use high concentrations of ethanol to precipitate DNA out of solution. Also, describe/predict the effects of increasing concentrations of ethanol in (and around) a cell on macro-molecular interactions (i.e. on weak bonds). Finally, it is possible to select for yeast that are tolerant to increased concentrations of ethanol.  Give an example of a physiological change in yeast cells that might make them resistant to ethanol.

Chapter 15 Solutions

Genetics: From Genes to Genomes, 5th edition

Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education