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DNA Labs India

CD3G Gene Cone-Rod Dystrophy Type 17 NGS Genetic Test

DNA Labs India | ISO 9001:2015 Certified

CD3G Gene Cone-Rod Dystrophy Type 17 NGS Genetic Test

Short Name: CD3G NGS Test

Also known as: CD3G Gene NGS Test, Cone-Rod Dystrophy Type 17 Genetic Testing, Retinal Dystrophy NGS Panel

CD3G Gene Cone-Rod Dystrophy Type 17 NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses Next-Generation Sequencing on Blood or Extracted DNA or One drop Blood on FTA Card samples. Results in Reports are typically delivered in 3 to 4 weeks after sample receipt.. Free home collection in 300+ cities across India.

NGS Genetic Test🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr SULOCHANA HEMCHANDRA HOLLA

Dr SULOCHANA HEMCHANDRA HOLLA

Consultant Medical Geneticist · Reg: 8532

Last reviewed: September 7, 2026

Overview

The purpose of this NGS genetic test is to identify mutations in the CD3G gene that cause Cone-Rod Dystrophy Type 17, confirm a clinical diagnosis, aid in genetic counselling, and help in management of symptoms.

Test Code
3810
Price
₹20,000
Sample Type
Blood or Extracted DNA or One drop Blood on FTA Card
Result Time
Reports are typically delivered in 3 to 4 weeks after sample receipt.
Fasting Required
No
Method
Next-Generation Sequencing
Step 1

Sample Collection

No special preparation required. No fasting needed. A genetic counselling session will be done prior to sample collection.

Method: Venipuncture or fingertip prick

Step 2

Laboratory Analysis

A simple blood draw or finger prick blood collection on FTA card. Minimal discomfort.

Step 3

Report Delivery

No restrictions. You can resume normal activities.

Timeline: Reports are typically delivered in 3 to 4 weeks after sample receipt.

Patient Instructions

1
Before the Test:Get a genetic counselling session to understand your family history and the reason for the test.
2
During the Test:Provide your blood sample. The process is quick and simple.
3
After the Test:You may receive the report in 3-4 weeks via email or portal. Discuss results with your doctor and genetic counsellor.

About This Test

Who Should Get This Test

The purpose of this NGS genetic test is to identify mutations in the CD3G gene that cause Cone-Rod Dystrophy Type 17, confirm a clinical diagnosis, aid in genetic counselling, and help in management of symptoms.

How to Prepare

  • FTA card must be dried at room temperature
  • Blood sample should be collected in EDTA tube
  • Label the sample correctly

Doctor's Notes

Reviewed by — MBBS, MD (Medical Genetics) · Reg. No. 8532

"Genetic testing for cone-rod dystrophy helps confirm the diagnosis and enables early intervention. I recommend genetic counselling for affected families."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Sample Volume2-3 ml blood or 1 drop on FTA card
ContainerEDTA vial or FTA card
Collection MethodVenipuncture or fingertip prick

Sample Stability

Blood: 3 days at 2-8°C
Extracted DNA: 1 month at -20°C
FTA card: 6 months at room temperature
Sample Rejection Criteria:
  • Hemolyzed blood sample
  • Incorrect sample label
  • Clotted blood sample (if EDTA)

Understanding Your Results

The genetic test report will indicate whether any pathogenic variants were detected in the CD3G gene. Information is provided for the clinician to correlate.
📊

Positive

Confirms diagnosis of Cone-Rod Dystrophy Type 17

📊

Negative

Diagnosis less likely but not completely excluded

📊

VUS

Further segregation analysis recommended

⚠️ When to Consult a Doctor:

If you or your child experience symptoms such as reduced vision, colour vision defects or night blindness, please consult an ophthalmologist promptly.

Limitations

  • ⚠This test only detects mutations in the CD3G gene; other genes associated with cone-rod dystrophy are not evaluated.
  • ⚠Variants of uncertain significance may be reported and require further interpretation.
  • ⚠Somatic mutations are not detected.

Risks & Considerations

  • ●Minimal risk: slight pain or bruising at the needle site
  • ●Very low risk of infection with blood draw

Interfering Factors

  • ●Sample degradation
  • ●Insufficient DNA quantity
  • ●Presence of maternal cell contamination

Frequently Asked Questions

What is the CD3G gene cone-rod dystrophy type 17 NGS genetic test?
It is a genetic test that uses next-generation sequencing to analyze the CD3G gene for mutations that cause cone-rod dystrophy type 17.
Why is this test done?
To confirm a diagnosis of cone-rod dystrophy type 17, identify mutations, aid in genetic counselling, and help manage symptoms early.
What is NGS technology?
NGS, or next-generation sequencing, is a high-throughput method to determine the DNA sequence of multiple genes quickly and accurately.
What sample is required for this test?
A blood sample, extracted DNA sample, or a single drop of blood on an FTA card is required.
Is fasting required before the test?
No, fasting is not required. You can eat and drink normally.
Do I need a doctor's prescription to take this test?
Yes, it is recommended to consult a specialist. A doctor may refer you for genetic testing after clinical evaluation.
What is the cost of the test?
The special discounted price is Rs 20,000 inclusive of home sample collection.
How long will the report take?
Reports are delivered within 3 to 4 weeks.
Is home sample collection available?
Yes, we offer free home sample collection across India for online bookings.
What do the test results mean?
A positive result indicates a pathogenic variant in the CD3G gene confirming diagnosis. A negative result suggests no mutation detected. Your doctor will explain the interpretation.
Are there any risks in this test?
The test is safe. There is minimal risk of bruising or infection at the blood draw site.
Is genetic counselling provided?
Yes, a genetic counselling session is included as part of the test to draw a pedigree chart and discuss implications.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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For Hospitals & Clinics

Reference Laboratory Services

We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

LIMS Integration

Your Data Privacy

Your medical data is protected under Indian law.

✓ Stored in India: All patient records are stored on servers located in India. No data is transferred outside the country.

✓ DPDP Act Compliant: Under the Digital Personal Data Protection Act 2023, you can request deletion of your records at any time by contacting support.

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