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MUSK Gene Myasthenic syndrome associated with acetylcholine receptor deficiency NGS Genetic Test

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MUSK Gene Myasthenic syndrome associated with acetylcholine receptor deficiency NGS Genetic Test

Short Name: MUSK Gene NGS Test

Also known as: MUSK Gene Mutation Analysis, Congenital Myasthenic Syndrome (CMS) NGS Test

MUSK Gene Myasthenic syndrome associated with acetylcholine receptor deficiency 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 Reports are typically delivered within 3 to 4 weeks after the sample reaches the laboratory.. Free home collection in 300+ cities across India.

NGS Genetic Test🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Pasupathy Arumugam

Dr Pasupathy Arumugam

Consultant Pathologist · Reg: 21521

Last reviewed: September 7, 2026

Overview

The purpose of this NGS genetic test is to identify disease-causing mutations in the MUSK gene in individuals suspected of having congenital myasthenic syndrome with acetylcholine receptor deficiency. The test helps confirm the clinical diagnosis, differentiate from other neuromuscular disorders, and guide management and genetic counseling.

Test Code
4366
Price
₹20,000
Sample Type
Blood or Extracted DNA or One drop Blood on FTA Card
Result Time
Reports are typically delivered within 3 to 4 weeks after the sample reaches the laboratory.
Fasting Required
No
Method
Next-Generation Sequencing (NGS)
Step 1

Sample Collection

No special preparation is required. Fasting is not necessary. Patients should provide a detailed clinical history and family pedigree. Genetic counseling prior to testing is recommended.

Step 2

Laboratory Analysis

A trained phlebotomist will collect a blood sample. If using an FTA card, one drop of blood will be applied to the designated area.

Step 3

Report Delivery

No activity or dietary restrictions after sample collection. The sample will be transported to the laboratory for analysis.

Timeline: Reports are typically delivered within 3 to 4 weeks after the sample reaches the laboratory.

Patient Instructions

1
Before the Test:No special preparation is required. Fasting is not necessary. Patients should provide a detailed clinical history and family pedigree. Genetic counseling prior to testing is recommended.
2
During the Test:The test involves NGS analysis of the MUSK gene using the provided sample. No invasive procedures are performed except the sample collection.
3
After the Test:No special precautions are needed. The patient may resume normal activities immediately.

About This Test

Who Should Get This Test

The purpose of this NGS genetic test is to identify disease-causing mutations in the MUSK gene in individuals suspected of having congenital myasthenic syndrome with acetylcholine receptor deficiency. The test helps confirm the clinical diagnosis, differentiate from other neuromuscular disorders, and guide management and genetic counseling.

How to Prepare

  • Consultation with a genetic counselor is advised before the test
  • Inform the laboratory of any recent blood transfusion or bone marrow transplant
  • Bring relevant medical records and family history

Doctor's Notes

Reviewed by — MBBS, MD (Pathology) · Reg. No. 21521

"Genetic testing for MUSK gene mutations is essential not only for confirming the diagnosis but also for offering accurate recurrence risk information to families planning future pregnancies. Early molecular diagnosis can significantly improve postnatal management and genetic counseling."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Sample Rejection Criteria:
  • Hemolyzed or clotted blood sample
  • Insufficient sample quantity
  • Mislabeled or unlabeled specimen
  • Improper storage or transportation of the sample

Understanding Your Results

Genetic test results should always be interpreted in the context of clinical findings, family history, and other diagnostic tests. A medical geneticist or neurologist should explain the implications of the results.
📊

Pathogenic variant detected

Confirms the molecular diagnosis of MUSK-related myasthenic syndrome.

📊

No pathogenic variant detected

Does not exclude the condition; other genetic causes or non-genetic etiologies may be considered.

📊

Variant of uncertain significance (VUS) detected

Further family segregation studies or functional assays may be needed to determine the clinical significance.

⚠️ When to Consult a Doctor:

If you or a loved one experience symptoms suggestive of myasthenic syndrome, such as persistent muscle weakness that worsens with activity, drooping eyelids, double vision, difficulty swallowing, or breathing difficulties, seek prompt medical evaluation.

Limitations

  • ⚠This test specifically analyzes the MUSK gene and does not detect mutations in other genes that may cause congenital myasthenic syndrome.
  • ⚠It may not detect large deletions/duplications or deep intronic variants that are not captured by NGS.
  • ⚠All identified pathogenic variants are confirmed by Sanger sequencing.
  • ⚠A negative result does not exclude the clinical diagnosis if suspicion remains strong.

Interfering Factors

  • ●Sample contamination or improper handling
  • ●Poor DNA quality or quantity
  • ●Variant of uncertain significance (VUS) requiring segregation analysis
  • ●Use of non-standard sample types

Compare With Similar Tests

TestMUSK Gene Myasthenic syndrome associated with acetylcholine receptor deficiency NGS Genetic TestMUSK Gene NGS TestComprehensive CMS Panel
ComparisonMUSK Gene Myasthenic syndrome associated with acetylcholine receptor deficiency NGS Genetic Test

Frequently Asked Questions

What is the MUSK gene myasthenic syndrome?
MUSK gene myasthenic syndrome is a rare genetic disorder caused by mutations in the MUSK gene. This gene provides instructions for making a protein critical for the formation and maintenance of the neuromuscular junction. Mutations lead to improper nerve-muscle signalling, resulting in muscle weakness.
How is the MUSK gene NGS genetic test performed?
The test uses next-generation sequencing technology to analyze the MUSK gene for disease-causing variants. A blood sample, extracted DNA, or a drop of blood on FTA card is required. The DNA is sequenced and analyzed for mutations.
What is the cost of the MUSK gene NGS test?
The cost is INR 20,000 at DNA Labs India. The price includes free home sample collection in most major cities across India.
What sample type is required for this test?
The sample can be whole blood, extracted DNA, or a single drop of blood on an FTA card. Blood is typically drawn in an EDTA tube.
Is fasting required before this test?
No, fasting is not required. You can eat and drink normally before providing a sample.
How long does it take to receive the report?
Reports are usually delivered within 3 to 4 weeks after the sample is received at the laboratory.
Will my insurance cover this genetic test?
Coverage depends on your individual insurance policy. We recommend checking with your provider. Some government schemes like PMJAY, CGHS, ECHS, and ESIC may or may not cover it; you can confirm with your plan.
Does this test detect all genetic causes of myasthenic syndrome?
No. This test specifically analyzes the MUSK gene. There are other genes that can cause congenital myasthenic syndromes. A comprehensive multi-gene panel may be recommended if the clinical suspicion is high but no MUSK mutation is found.
What do the test results mean?
If a pathogenic variant is detected, it confirms the diagnosis. If no pathogenic variant is found, it does not rule out MUSK-related syndrome, as some variants may not be detected by NGS. A variant of uncertain significance may require further family studies.
Is genetic counseling available before the test?
Genetic counseling is strongly recommended prior to testing to understand the benefits, limitations, and implications of genetic testing. DNA Labs India provides guidance through qualified genetic counselors.
Can I get the raw data files (FASTQ, VCF) with my report?
Yes, DNA Labs India is transparent and provides raw data files such as FASTQ and VCF along with the clinical report. This allows independent verification of the results if needed.
Where is this test available?
This test is available across India, including metropolitan cities like Mumbai, Delhi, Bangalore, Hyderabad, Chennai, Kolkata, and many other locations. Free home sample collection is offered for online bookings in these areas.
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.

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✓ 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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