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PCBD1 Gene Hyperphenylalaninemia, BH4 deficient, type D NGS Genetic Test

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PCBD1 Gene Hyperphenylalaninemia, BH4 deficient, type D NGS Genetic Test

Short Name: PCBD1 Gene Test

Also known as: BH4 Deficiency Type D, PCBD1 Deficiency, Hyperphenylalaninemia due to PTPS deficiency

PCBD1 Gene Hyperphenylalaninemia, BH4 deficient, type D NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses NGS Technology 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 TestAll Ages🏠 Home Collection

🩺 Medically Reviewed By

Overview

The purpose of this test is to detect mutations in the PCBD1 gene to diagnose BH4 deficient hyperphenylalaninemia type D, enabling early intervention and management to prevent neurological complications.

Test Code
4706
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
NGS Technology
Step 1

Sample Collection

Clinical history of the patient and a genetic counseling session to draw a pedigree chart of family members affected with Hyperphenylalaninemia, BH4 deficient, type D are required before sample collection.

Method: Venipuncture or FTA Card

Step 2

Laboratory Analysis

Your sample is analyzed using NGS Technology in our laboratory.

Step 3

Report Delivery

A certified pathologist reviews and signs your report. You receive it as a secure PDF via email and WhatsApp.

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:Sample collection via blood draw or FTA card.
3
After the Test:Results are available online; follow-up with a geneticist is advised for positive results.

About This Test

Who Should Get This Test

The purpose of this test is to detect mutations in the PCBD1 gene to diagnose BH4 deficient hyperphenylalaninemia type D, enabling early intervention and management to prevent neurological complications.

How to Prepare

  • Blood sample: Collect in EDTA tube
  • Extracted DNA: Provide in sterile container
  • FTA Card: Use one drop of blood as per instructions

Doctor's Notes

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

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Collection MethodVenipuncture or FTA Card
Sample Rejection Criteria:
  • Hemolyzed samples
  • Insufficient sample volume
  • Improperly labeled samples

Understanding Your Results

Results indicate the presence or absence of mutations in the PCBD1 gene. A positive result confirms diagnosis, while a negative result may require further testing if clinical suspicion remains high.
📊

Positive for pathogenic mutation

Confirms diagnosis of PCBD1 Gene Hyperphenylalaninemia, BH4 deficient, type D. Consult a geneticist for management.

📊

Negative for pathogenic mutation

No mutations detected in PCBD1 gene. Consider other causes of hyperphenylalaninemia.

📊

Variant of unknown significance

Genetic variant found but clinical significance unclear. Genetic counseling recommended.

⚠️ When to Consult a Doctor:

Consult a doctor if symptoms such as developmental delays, seizures, or behavioral issues are present, or if there is a family history of hyperphenylalaninemia.

Limitations

  • Test may not detect all genetic variants
  • Results require clinical correlation
  • Limited to PCBD1 gene analysis

Risks & Considerations

  • Minimal physical risk from blood draw
  • Potential psychological impact of genetic results

Frequently Asked Questions

What is PCBD1 Gene Hyperphenylalaninemia?
It is a rare genetic disorder caused by mutations in the PCBD1 gene, leading to deficiency of the enzyme PTPS and BH4, resulting in accumulation of phenylalanine.
What are the symptoms of BH4 deficient type D?
Symptoms include delayed development, intellectual disability, muscle stiffness, tremors, seizures, abnormal movements, behavioral problems, hyperactivity, and skin rashes.
How is the test performed?
The test uses Next-Generation Sequencing (NGS) to analyze the PCBD1 gene for mutations from a blood or DNA sample.
What is the cost of the test?
The test costs INR 20000 at DNA Labs India, with free home sample collection available.
Is home sample collection available?
Yes, free home sample collection is offered for online bookings across India.
How long does it take to get results?
Results are typically available within 3 to 4 weeks after sample receipt.
What does a positive result mean?
A positive result confirms mutations in the PCBD1 gene, indicating BH4 deficient hyperphenylalaninemia type D. Consult a geneticist for management.
Can this test be done for newborns?
Yes, the test can be performed on individuals of all ages, including newborns, especially if there is a family history or symptoms.
Is genetic counseling required?
Genetic counseling is recommended before and after testing to understand implications and draw a family pedigree chart.
What is the accuracy of the NGS test?
The NGS test has a sensitivity of over 99% for detecting mutations in the PCBD1 gene.
Are there any risks associated with the test?
Risks are minimal, primarily related to blood draw, but there may be psychological impacts from genetic results.
How can I book the test?
You can book the test online through the DNA Labs India website or contact their customer service for assistance.
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.

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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