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ATXN7 Gene Spinocerebellar ataxia type 7, autosomal dominant NGS Genetic Test

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ATXN7 Gene Spinocerebellar ataxia type 7, autosomal dominant NGS Genetic Test

Short Name: SCA7 Genetic Test

Also known as: Spinocerebellar ataxia type 7, SCA7, ATXN7-related ataxia

ATXN7 Gene Spinocerebellar ataxia type 7, autosomal dominant NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses Next-Generation Sequencing (NGS) on Blood or Extracted DNA or One drop Blood on FTA Card samples. Results in 3 to 4 Weeks. Free home collection in 300+ cities across India.

NGS Genetic TestAdults (20-50 years)🏠 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 the ATXN7 Gene SCA7 Genetic Test is to identify mutations in the ATXN7 gene that cause Spinocerebellar ataxia type 7. This helps in confirming diagnosis, differentiating from other ataxias, enabling carrier testing for family members, and informing reproductive planning.

Test Code
4580
Price
₹20,000
Sample Type
Blood or Extracted DNA or One drop Blood on FTA Card
Result Time
3 to 4 Weeks
Fasting Required
No
Method
Next-Generation Sequencing (NGS)
Step 1

Sample Collection

Clinical history of the patient and a genetic counseling session to draw a pedigree chart of affected family members are required.

Method: Venipuncture

Step 2

Laboratory Analysis

Standard blood collection procedure via venipuncture. For FTA card, a drop of blood is applied.

Step 3

Report Delivery

Apply pressure to the puncture site to stop bleeding. Keep the area clean.

Timeline: 3 to 4 Weeks

Patient Instructions

1
Before the Test:Genetic counseling and clinical history assessment are recommended before testing.
2
During the Test:Blood sample collection for DNA extraction and NGS analysis.
3
After the Test:Results are available in 3-4 weeks. Follow-up with genetic counselor for interpretation.

About This Test

Who Should Get This Test

The purpose of the ATXN7 Gene SCA7 Genetic Test is to identify mutations in the ATXN7 gene that cause Spinocerebellar ataxia type 7. This helps in confirming diagnosis, differentiating from other ataxias, enabling carrier testing for family members, and informing reproductive planning.

How to Prepare

  • Provide detailed clinical history
  • Attend genetic counseling session
  • Ensure proper identification of sample
  • Follow fasting instructions if any (not required for this test)

Doctor's Notes

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

"Genetic testing for SCA7 is essential for accurate diagnosis, prognosis, and informed family planning. Early detection can guide management strategies."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Collection MethodVenipuncture

Sample Stability

Room Temperature
Refrigerated
Sample Rejection Criteria:
  • Hemolyzed sample
  • Insufficient volume
  • Incorrect sample type
  • Missing patient information

Understanding Your Results

Results of the ATXN7 Gene SCA7 Genetic Test indicate the presence or absence of pathogenic mutations in the ATXN7 gene.
📊

No pathogenic variants detected

Negative for SCA7 mutations. Clinical correlation recommended.

📊

Pathogenic variants detected

Positive for SCA7. Confirms diagnosis. Genetic counseling advised for family testing.

⚠️ When to Consult a Doctor:

If you experience symptoms of ataxia, vision loss, or have a family history of SCA7, consult a neurologist or geneticist for evaluation and testing.

Limitations

  • ⚠May not detect all types of mutations
  • ⚠Requires genetic counseling for interpretation
  • ⚠Results may have implications for family members

Risks & Considerations

  • ●Minor bruising at blood draw site
  • ●Rare risk of infection
  • ●Psychological impact of results

Interfering Factors

  • ●Poor sample quality
  • ●Contaminated DNA
  • ●Insufficient sample volume

Compare With Similar Tests

TestATXN7 Gene Spinocerebellar ataxia type 7, autosomal dominant NGS Genetic TestMRI BrainElectromyography (EMG)Other SCA Genetic Panels
ComparisonATXN7 Gene Spinocerebellar ataxia type 7, autosomal dominant NGS Genetic TestImaging to assess brain structure, not genetic cause.Evaluates nerve and muscle function, not specific for SCA7.Tests for multiple ataxia genes; this test is specific for ATXN7.

Frequently Asked Questions

What is the ATXN7 Gene SCA7 Genetic Test?
It is a genetic test that uses Next-Generation Sequencing to detect mutations in the ATXN7 gene, which causes Spinocerebellar ataxia type 7.
Who should consider this test?
Individuals with symptoms of ataxia, vision loss, or a family history of SCA7 should consider this test.
How is the test performed?
A blood sample is collected and analyzed using NGS technology to identify genetic variants.
What is the cost of the test?
The test costs INR 20,000 at DNA Labs India, with free home sample collection.
Is home sample collection available?
Yes, free home collection is available across India for online bookings.
How long does it take to get results?
Results are typically available within 3 to 4 weeks.
What do the results mean?
A positive result confirms SCA7 diagnosis; a negative result indicates no pathogenic variants detected.
Is genetic counseling recommended?
Yes, genetic counseling is advised before and after testing to understand implications.
Can this test be used for prenatal diagnosis?
Prenatal testing may be possible, but consult a genetic counselor for options.
What are the main symptoms of SCA7?
Symptoms include balance problems, walking difficulties, slurred speech, swallowing issues, and vision loss.
How is SCA7 inherited?
SCA7 is autosomal dominant, meaning one mutated gene copy can cause the disorder.
Are there any risks with the test?
Risks are minimal, such as bruising from blood draw, but psychological impact of results should be considered.
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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