Gene Insertion: Transcription in Eukaryotic Cells

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In summary, if a gene is inserted into another gene in a eukaryotic cell, the resulting sequence will most likely be transcribed as long as the tail of the inserted gene is removed. However, this may result in a non-functioning protein and if the insertion occurs in an intronic region, it may be spliced out. This is a common method for creating fusion proteins, although there is a risk of creating non-functional proteins.
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If one gene is inserted into the sequence of a second gene, will both genes by transcribed in the eukaryotic cell?
 
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Yes, most likely, the whole sequence would be transcribed... as long as the tail of the inserted gene was cut off so that the polymerase would continue to read through it.

Although the translation would probably result in a non functioning protein, and if it was inserted into and intronic region it would be cut out in splicing.
 
  • #3
Yes, that is how fusion proteins are made (fluorescently tagged, for instance). Ofcourse it needs to be inserted in frame and there is always a chance that the fusion results in a non-functional protein.
 

Related to Gene Insertion: Transcription in Eukaryotic Cells

1. What is gene insertion and how does it work in eukaryotic cells?

Gene insertion is the process of introducing a new gene or DNA sequence into the genome of an organism. In eukaryotic cells, this is typically done through a process called transcription, where a segment of DNA is copied into a messenger RNA (mRNA) molecule. This mRNA then travels to the ribosomes, where it is used as a template to create a protein.

2. What are the different methods of gene insertion in eukaryotic cells?

There are several methods of gene insertion in eukaryotic cells, including viral vectors, electroporation, and microinjection. Viral vectors use modified viruses to deliver the new gene into the cell, while electroporation uses an electric current to create temporary pores in the cell membrane for the gene to enter. Microinjection involves using a fine needle to physically inject the gene into the cell.

3. How do eukaryotic cells ensure that the inserted gene is transcribed correctly?

Eukaryotic cells have a complex system of protein factors and enzymes that work together to ensure that the inserted gene is transcribed correctly. These include transcription factors, which bind to specific sequences in the DNA and help to initiate transcription, and RNA polymerase, which is responsible for synthesizing the mRNA molecule from the DNA template.

4. What are some potential benefits of gene insertion in eukaryotic cells?

Gene insertion in eukaryotic cells has many potential benefits, including the ability to produce new proteins for medical or industrial purposes, the potential to correct genetic disorders, and the ability to create genetically modified organisms with desirable traits. It also allows for the study of gene function and regulation in a controlled environment.

5. Are there any ethical concerns surrounding gene insertion in eukaryotic cells?

There are some ethical concerns surrounding gene insertion in eukaryotic cells, particularly in the areas of genetic modification and human gene therapy. Some people worry about the potential for unintended consequences and the ethical implications of altering an organism's genetic makeup. However, strict regulations and ethical guidelines are in place to ensure responsible use of gene insertion technology.

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