How does crispr work for gene editing

How does crispr work for gene editing

We will discuss how does crispr work for gene editing Genome Editing is also known as Genome editing, and is a type of genetic engineering that allows genetic material (DNA) to be add, remove, or replace at specific locations in the genome of a living organism. It gives scientists the ability to change an organism’s DNA. Gene editing is essentially customizing the genetic makeup of an organism by making specific changes in its DNA.

How does crispr work for gene editing

It is not a simple or safe procedure. Gene editing uses enzymes that have been engineer to target a specific DNA sequence. The new cuts of the DNA strands are then insert enabling the removal of the existing DNA and insertion of the new DNA. This is done using the CRISPR tool create in 2012.

Why is Gene Editing important to our society? 

  • Gene-editing allows us to provide treatments to a multitude of diseases.
  • It has the ability and potential to cure complex diseases, specifically single- cell disorders like: 

– Muscular dystrophy

– Cystic Fibrosis

  • It also allows scientists to edit genomes of other species, which could prove to be useful.


One of the most popular gene-editing technologies is a molecular tool know as CRISPR-Cas9 (Clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9). It is a promising tool that can be exploit to l develop new therapeutic strategies to fight infectious diseases. CRISPR-Cas9 technology is also one of the backbones of our Sentinel Project: a pandemic preemption system.NWe leverage genomic and CRISPR technology to develop tests that can detect virtually any pathogen, in order to help stop them before they spread and cause pandemics.

Working of CRISPR/ Cas9 

There are many ways to cut and paste DNA and the most effective one is CRISPR / Cas9 If there is a correct recognition zone in the same series for a restriction enzyme on a DNA sequence, you can remove a gene from this chromosome. And if you want to stick this gene to another organism youll need a plasmid, virus or another vector. With CRISPR / Cas9,you can tell us where you want to replace the CRISPR machine and what you want to do. CRISPR is part of the bacterial immune system. Bacteria and backs keep their records to recognize and destroy their invaders later and these invaders are often viruses.

These detain pieces are separate with special DNA repetitions. Repeat first, then have a identical sequence, then more repetitive bacterial DNA sequences, and this weird structure is call” short palindromic repetitions cluster at regular intervals “. So ” CRISPR”. These bacteria also produce protein connect to DNA genes and these are call Cas. Cas9 is program to search, find and destroy. If he finds a piece of DNA flying in a cell, he will cut it. In short, CRISPR / Cas9 is an Enzyme and tool that can find, cut and stick to any location. Maybe with this system we can change cancer cells genomes to stop causing cancer.

How does crispr work for gene editing

The 2020 nobel prize in chemistry has been award and it’s been give to Emmanuelle Charpentier and Jennifer Doudna for their development of the CRISPR-Cas9 method of DNA editing. The CRISPR-Cas9 system targets a section of DNA, splices it out, and replaces it with the proper sequence. Still tricky to manage, but this method rewrites the code of life, having implications for plants, animals, and possibly human disease. it’s been only 8 years since their first published paper on CRISPR-Cas9 and the tool’s use has potential in nearly every branch of science. The tech has and will continue to completely transform the way we do research.

More familiar with two Nobel Chemistry winners 2020 Emmanuel Marie Sharpentier was born in France in 1968 (51 years old). She is a professor and researcher in the fields of microbiology, genetics and biochemistry. In 2015, she became the director of the German Institute of Max Plank for Infection Biology and then in 2018 she founded an independent research institution called the Max Plank Unit for the Science of Pathogens (Pathogens) and now the director of the same institution. It’s Jennifer N Dodna was born in 1964 (56 years) in Washington DC, USA. As a UCLA professor biochemist, Berkeley is in the Molecular and Cellular Biology Departments Sharpentier and Dodna were on the list of 100 most influential people in the world in 2015. 

What is CRISPR used for? 

CRISPR technology has utilised this natural

defense mechanism to edit the genomes of other organisms. It has been use to correct certain human genetic diseases and to create ‘allergy-free food. This is do-ne by modifying, deleting or inserting DNA sequences into The genome.  Due to the complex nature of genomes and interactions between genes, there have been cases in

which untarget areas of the genome have been detrimentally affect in large knock-on effects. Germline editing, in which the changes will be pass down to future generations, as well as genetic editing of embryos, additionally pose ethical dilemmas.


  • Immunotherapies-  modify T-cells to kil cancer cells
  • Cure Genetic Diseases- get rid of genes related to genetic disorders
  • Drug Development – speed up drug discovery.
  • Improve Crops – increase crop resiliency and nutritional properties


  • Germlining- enhancing people
  • Bioweapons – modifying bacteria
  • and viruses for biological warfaree
  • Reduced Genetic Diversity- ecological impact of gene drives
  • Safety Risk – off target effects and imprecise edits

CRISPR Editing In space done for the first time. 

  • Researchers have developed and successfully demonstrated a novel method for studying how cells repair damaged DNA in space. Sarah Stah-Rommel of Genes in Space and colleagues present the new technique in the open-access journa PLOS ONE on June 30, 2021.
  • Damage to an organismis DNA can occur during normal biological processes or as a result of environmental causes, such as UV light. In humans and other animals, damaged DNA can lead to cancer. Fortunately, cells have several different natural strategies by which damage DNA can be repair.
  • The technique uses CRISPR/Cas9 genome editing technology to create precise damage to DNA strands so that DNA repair mechanisms can then be observe in better detail than would be possible with non-specific damage via radiation or other causes. The method focuses on a particularly harmful type of DNA damage known as a double-strand break.
  • The researchers successfully demonstrated the viability of the novel method in yeast cells aboard the International Space Station. They hope the technique will now enable extensive research into DNA repair in space.
  • This study marks the first time that CRISPR/Cas9 genome editing has successfully been conduct in space, as well as the first time in space that live cells have undergone suCcessful.transformation-incorporation of genetic material originating from outside the organism.

History of CRISPR

In park at danisco in Denmark’s yogurt company danisco While researching the probiotics that is easy to die by terriopajie, bacteria found the probiotics that survived without dying, and the cause of probiotics is adaptive  because of the immune system. Adaptive Immune System says the immune system that works unusual about invaded substance outside. In Case of probiotics explained ahead, putting part of the dna of bacteria that invaded from outside. After Crispr becomes a warrior and becomes rna, and combine with cas9 protein, and perform immune function by finding the dna that has been invade with cas9 protein.

The reason why Crispr-Cas9 is innovative is because na performs the role of looking for yeomgiseoyeol-eul, not protein, not protein generation, protein in case of zfn and talen. However, in case of the th generation genetic scissors, Crispr-Cas9, it has become much simpler and mass production because RNA performs the role of finding certain yeomgiseoyeol-eul. 

The principle of Crispr-Cas9 

Firstly, after tracrRNA combine with pre-crrna, it is cut off by ribonucleaseii, and the crrna maturation happens by the cas9 protein. Later, after crRNA recognizes the target DNA, the target DNA is cut off by the Cas9 protein. (Sgrna) as a technology that connects tracrna and crrna, and it was

simple to be able to make genome targeting with two elements of sgrna and cas9. 

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