What is Whole Exome Sequencing?

What is Whole Exome Sequencing?

Whole exome sequencing (WES) is a robust and one of the most comprehensive genetic tests to identify the disease-causing changes in a large variety of genetic disorders. Exon are the coding regions in the DNA from which most of the protein in the human body is coded from. Any changes in the exon of the protein changes its function. The majority of disease causing mutations occur in the exome, which is 1.7 percent of a human genome that encodes proteins. The exome is quite smaller compared to genome and only has information about all coding regions.

In Whole Exome sequencing, protein-coding regions of all genes (~20,000) of the human genome, i.e. exome, are sequenced using next-generation sequencing technologies. While the exome constitutes only ~1% of the whole genome, 85% of all disease-causing mutations are located there. Indeed, Whole Exome sequencing is a powerful method to identify the molecular basis of genetic disorders across various medical specialties.

The diagnostic yield of Whole Exome sequencing is higher than some traditional gene diagnostic methods. A definite diagnosis is typically obtained in 20-60% of cases, depending on the medical specialty, with severe, early-onset disorders having the highest diagnostic rates. The chance of identifying the cause of the disorder is maximized when Whole Exome sequencing is performed for both the index patient and parents or other first-degree family members.


Why Whole exome sequencing is better than single sequencing?

Whole exome sequencing are used for patients where multiple symptoms occurs at same time make it difficult to pin point the exact gene responsible for the disease. And ordering genetic testing becomes complex and a step wise diagnostic strategy which often significantly increases the costs. Furthermore, a delayed diagnosis may have a dramatic impact on the patient’s quality of life.

Whole exome sequencing, offers a fast and cost-effective quick solution which involves sequencing the entire coding region of the genome.

Whole Exome Sequencing is most suitable for individuals with
  • a complex, unspecific genetic disorder with multiple differential diagnoses.
  • a genetically heterogeneous disorder.
  • a suspected genetic disorder where a specific genetic test is not available.
  • unsuccessful previous genetic testing.

Where can i get the Whole Exome Sequencing in India

DNA Labs India, is a leading molecular diagnostic company dedicated to making a difference in patient’s lives through the discovery and commercialization of transformative tests to assess a person’s risk of developing disease, guide treatment decisions and assess risk of disease progression and recurrence.

How can I book my Whole Exome Sequencing Tests in India?

Visit website www.dnalabsindia.com, for any DNA test. We can help you get your DNA test done. We have services in over 180 cities in India. Call us on below mention no.s or visit our sample collection center nearby your location.

It is very easy to book Whole exome sequencing. It is safe, secure, confidential and best of all, an easy process. Avoid the hassle of one day off from your work,Traffic,Pollution. Our Highly Qualified sample collector will Visit your Home for Sample Collection as per your Convenient Time slot booked by you.

To know more about the test or to schedule a test you contact us on following no. for major metropolitan cities

New Delhi: (011) 40849842

Mumbai : (022) 48937160

Kolkata : (033) 40836441

Chennai : (044) 48137110

Bangalore : (080) 45684079

Hyderabad : (040) 49171772

Ahmedabad : (079) 49107674

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