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GJB3 Gene Erythrokeratodermia variabilis et progressive NGS Genetic Test

DNA Labs India | ISO 9001:2015 Certified

GJB3 Gene Erythrokeratodermia variabilis et progressive NGS Genetic Test

Short Name: GJB3 EKVP NGS Test

Also known as: EKVP Genetic Test, GJB3 Mutation Analysis, Erythrokeratodermia Variabilis et Progressive Genetic Test

GJB3 Gene Erythrokeratodermia variabilis et progressive 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.

Next-Generation Sequencing (NGS)🏠 Home Collection

🩺 Medically Reviewed By

Overview

To diagnose Erythrokeratodermia variabilis et progressive (EKVP) by identifying pathogenic mutations in the GJB3 gene using next-generation sequencing, aiding in confirmatory diagnosis, genetic counseling, and family planning.

Test Code
4928
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

Provide clinical history and undergo genetic counseling as per pre-test information requirements.

Method: Venipuncture or Saliva Collection

Step 2

Laboratory Analysis

Sample collection via blood draw or saliva collection in a sterile environment.

Step 3

Report Delivery

Sample is labeled, stored appropriately, and sent to the laboratory for NGS analysis.

Timeline: 3 to 4 weeks

Patient Instructions

1
Before the Test:Provide clinical history and undergo genetic counseling as per pre-test information requirements.
2
During the Test:Next-generation sequencing of the GJB3 gene is performed on the collected sample.
3
After the Test:Report is generated, and genetic counseling is provided to discuss results and implications.

About This Test

Who Should Get This Test

To diagnose Erythrokeratodermia variabilis et progressive (EKVP) by identifying pathogenic mutations in the GJB3 gene using next-generation sequencing, aiding in confirmatory diagnosis, genetic counseling, and family planning.

How to Prepare

  • Fasting is not required
  • Avoid contamination of the sample
  • Ensure proper labeling with patient details
  • Follow instructions for FTA card if used

Doctor's Notes

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

"This genetic test is crucial for confirming EKVP diagnosis and guiding family planning, especially for couples with a family history of genetic skin disorders."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Sample VolumeAs required
ContainerEDTA tube or FTA card
Collection MethodVenipuncture or Saliva Collection

Sample Stability

Blood: 24 hours at room temperature
Extracted DNA: Stable for years if stored at -20°C
Sample Rejection Criteria:
  • Hemolyzed or clotted blood sample
  • Insufficient sample volume
  • Improper labeling or documentation

Understanding Your Results

Results indicate the presence or absence of pathogenic mutations in the GJB3 gene, which are associated with Erythrokeratodermia variabilis et progressive.
📊

Positive

Pathogenic mutation detected in GJB3 gene, consistent with EKVP diagnosis. Genetic counseling recommended.

📊

Negative

No pathogenic mutations detected. Clinical correlation advised if symptoms persist.

📊

Variant of Uncertain Significance

A genetic variant was detected but its clinical significance is unknown. Further testing or family studies may be needed.

⚠️ When to Consult a Doctor:

If symptoms persist, worsen, or if there is a family history of EKVP, consult a dermatologist or genetic counselor for further evaluation and management.

Limitations

  • May not detect all possible mutations
  • Requires genetic counseling for interpretation
  • Results should be correlated with clinical findings

Risks & Considerations

  • Minimal physical risk from sample collection
  • Potential psychological impact of genetic results
  • Risk of misinterpretation without professional guidance

Interfering Factors

  • Poor sample quality
  • Contamination
  • Technical errors during sequencing

Compare With Similar Tests

TestGJB3 Gene Erythrokeratodermia variabilis et progressive NGS Genetic TestSkin BiopsySanger Sequencing
ComparisonGJB3 Gene Erythrokeratodermia variabilis et progressive NGS Genetic TestInvasive procedure that shows histological changes like hyperkeratosis but does not identify genetic mutations.Less comprehensive than NGS; may miss novel or multiple mutations in the GJB3 gene.

Frequently Asked Questions

What is Erythrokeratodermia variabilis et progressive (EKVP)?
EKVP is a rare genetic skin disorder characterized by red, scaly patches that can appear on various body parts, caused by mutations in the GJB3 gene.
What causes EKVP?
EKVP is caused by mutations in the GJB3 gene, which encodes the connexin 31 protein important for skin cell communication.
How is EKVP diagnosed?
Diagnosis involves clinical examination, skin biopsy, and genetic testing such as the GJB3 gene NGS test to confirm mutations.
What is the GJB3 gene?
The GJB3 gene provides instructions for making connexin 31, a protein that forms gap junctions in skin cells, essential for skin barrier function.
What does the NGS genetic test involve?
The test uses next-generation sequencing to analyze the GJB3 gene for mutations, requiring a blood or saliva sample.
How accurate is the GJB3 gene test?
NGS technology is highly accurate for detecting known and novel mutations, but results should be interpreted with clinical correlation.
What are the symptoms of EKVP?
Symptoms include red, scaly patches on the skin that may be itchy, painful, and can change in size and shape, often on the face, scalp, and trunk.
Is there a treatment for EKVP?
There is no cure, but management includes moisturizers, topical treatments, and genetic counseling. Early diagnosis helps in symptom control.
How long does it take to get the test results?
Results are typically available within 3 to 4 weeks after sample collection.
What is the cost of the GJB3 gene test?
The test costs INR 20,000 at DNA Labs India, with home sample collection available.
Is home sample collection available for this test?
Yes, DNA Labs India offers free home sample collection for online bookings across many cities in India.
What should I do if my test results are positive?
Consult a dermatologist or genetic counselor for further evaluation, management options, and genetic counseling for family planning.
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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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.

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