GTR Test Accession:
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GTR000557236.1
Registered in GTR:
2017-09-12
View version history
GTR000557236.1,
registered in GTR:
2017-09-12
Last annual review date for the lab: 2023-07-12
Past due
LinkOut
At a Glance
Test purpose:
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Diagnosis;
Risk Assessment
Conditions (1):
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Homocystinuria due to methylene tetrahydrofolate reductase deficiency
Genes (1):
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MTHFR (1p36.22)
Methods (1):
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Molecular Genetics - Targeted variant analysis: Allele-specific primer extension (ASPE)
Target population: Help
Patients with HIperhomocysteinemia
Thrombophilia
Clinical validity:
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Not provided
Clinical utility:
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Not provided
Ordering Information
Offered by:
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Test short name:
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MTHFR Variants
Manufacturer's name:
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TibMolBiol
Specimen Source:
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- Peripheral (whole) blood
Who can order: Help
- Health Care Provider
- Licensed Physician
Test Order Code:
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MTHFR
Contact Policy:
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Pre-test email/phone consultation regarding genetic test results and interpretation is provided to patients/families.
How to Order:
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Test service:
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Clinical Testing/Confirmation of Mutations Identified Previously
Test additional service:
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Custom mutation-specific/Carrier testing
Test development:
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Manufactured (research use only; not FDA-reviewed)
Informed consent required:
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Decline to answer
Pre-test genetic counseling required:
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Decline to answer
Post-test genetic counseling required:
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Decline to answer
Recommended fields not provided:
Lab contact for this test,
Test strategy
Conditions
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Total conditions: 1
Condition/Phenotype | Identifier |
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Test Targets
Genes
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Total genes: 1
Gene | Associated Condition | Germline or Somatic | Allele (Lab-provided) | Variant in NCBI |
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Methodology
Total methods: 1
Method Category
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Test method
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Instrument
Targeted variant analysis
Allele-specific primer extension (ASPE)
Roche LightCycler 480
Clinical Information
Test purpose:
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Diagnosis;
Risk Assessment
Target population:
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Patients with HIperhomocysteinemia
Thrombophilia
Recommended fields not provided:
Clinical validity,
Clinical utility,
What is the protocol for interpreting a variation as a VUS?,
Are family members with defined clinical status recruited to assess significance of VUS without charge?,
Will the lab re-contact the ordering physician if variant interpretation changes?,
Is research allowed on the sample after clinical testing is complete?,
Sample negative report,
Sample positive report
Technical Information
Availability:
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Tests performed
Entire test performed in-house
Entire test performed in-house
Analytical Validity:
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Specificity by sequencing the amplicon
Sensitivity by serial dilutions 250 copies (1.5 ng)
Specificity and sensitivty by sequencing 132 samples from caucasians
Proficiency testing (PT):
Is proficiency testing performed for this test?
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No
No
Recommended fields not provided:
Test Confirmation,
Assay limitations,
Description of internal test validation method,
Citations for Analytical validity,
PT Provider,
Description of PT method,
Major CAP category, CAP category, CAP test list
Regulatory Approval
FDA Review:
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Category:
Not Applicable
Additional Information
Clinical resources:
Molecular resources:
IMPORTANT NOTE:
NIH does not independently verify information submitted to GTR; it relies on submitters to provide information that is accurate and not misleading.
NIH makes no endorsements of tests or laboratories listed in GTR. GTR is not a substitute for medical advice.
Patients and consumers
with specific questions about a genetic test should contact a health care provider or a genetics professional.