GTR Test Accession:
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GTR000576328.7
Last updated in GTR:
2023-12-05
View version history
GTR000576328.7,
last updated:
2023-12-05
GTR000576328.6,
last updated:
2023-01-31
GTR000576328.5,
last updated:
2022-02-06
GTR000576328.4,
last updated:
2021-05-30
GTR000576328.3,
last updated:
2021-02-07
GTR000576328.2,
last updated:
2020-05-03
GTR000576328.1,
registered in GTR:
2020-04-05
Last annual review date for the lab: 2024-01-30
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At a Glance
Methods (3):
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Molecular Genetics - Deletion/duplication analysis: Next-Generation (NGS)/Massively parallel sequencing (MPS); ...
Target population: Help
Patients with a suspected genetic etiology when: the patient exhibits …
Clinical validity:
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Not provided
Clinical utility:
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Not provided
Ordering Information
Offered by:
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Specimen Source:
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- Isolated DNA
- Peripheral (whole) blood
- Saliva
Who can order: Help
- Genetic Counselor
- Health Care Provider
- Licensed Physician
Test Order Code:
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CA001
View other test codes
View other test codes
CPT codes:
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Lab contact:
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Contact Policy:
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Laboratory can only accept contact from health care providers. Patients/families are encouraged to discuss genetic testing options with their health care provider.
How to Order:
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Genomic Unity Whole Genome Analysis can be ordered for the proband. Test orders are initiated at https://www.variantyx.com/resources/provider-resources/order-forms/. Following submission, a clinical coordinator will get in touch to send a blood or saliva sample collection kit if required and facilitate collection of the test requisition and informed consent forms.
Order URL
Order URL
Informed consent required:
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Yes
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:
Test strategy,
Test development
Conditions
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Total conditions: 1
Condition/Phenotype | Identifier |
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Test Targets
Chromosomal regions/Mitochondria
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Total chromosomal regions/mitochondria: 2
Chromosomal region/Mitochondrion | Associated condition |
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Methodology
Total methods: 3
Method Category
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Test method
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Instrument *
Deletion/duplication analysis
Next-Generation (NGS)/Massively parallel sequencing (MPS)
Mutation scanning of select exons
Tandem repeat expansion analysis
Sequence analysis of the entire coding region
Next-Generation (NGS)/Massively parallel sequencing (MPS)
* Instrument: Not provided
Clinical Information
Test purpose:
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Diagnosis
Target population:
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Patients with a suspected genetic etiology when: the patient exhibits a phenotype with significant genetic heterogeneity, or that is suggestive of multiple conditions; the patient exhibits symptoms with an unclear or atypical phenotype; no or multiple targeted testing options are available for the suspected disease, or there are a large …
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Variant Interpretation:
What is the protocol for interpreting a variation as a VUS?
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Variants are categorized as pathogenic, likely pathogenic or a variant of uncertain significance (VUS) utilizing the American College of Medical Genetics and Genomics (ACMG)/Association for Molecular Pathology (AMP) guidelines as published by Richards et al 2015.
Variants are categorized as pathogenic, likely pathogenic or a variant of uncertain significance (VUS) utilizing the American College of Medical Genetics and Genomics (ACMG)/Association for Molecular Pathology (AMP) guidelines as published by Richards et al 2015.
Will the lab re-contact the ordering physician if variant interpretation changes?
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Not provided.
Not provided.
Recommended fields not provided:
Clinical validity,
Clinical utility,
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
Test Procedure:
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The patient's DNA is sequenced using whole genome sequencing conducted on an Illumina platform at 30X mean mappable coverage. The relevant region(s) of DNA are subsequently isolated in-silico for analysis.
Test Confirmation:
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Tandem repeat expansions might be sent out to a third party CLIA/CAP lab for orthogonal confirmation if needed.
Test Comments:
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This test includes repeat expansion analysis of 36 loci: AFF2, AR, ARX, ATN1, ATXN1, ATXN2, ATXN3, ATXN7, ATXN8OS, ATXN10, C9ORF72, CACNA1A, CNBP, CSTB, DIP2B, DMPK, FGF14, FMR1, FOXL2, FXN, GIPC1, GLS, HTT, JPH3, LRP12, NOP56, NOTCH2NLC, PABPN1, PHOX2B, PPP2R2B, RFC1, SOX3, TBP, TCF4, VWA1 and ZIC2 genes.
Availability:
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Tests performed
Entire test performed in-house
Test performance comments
Specimen preparation and clinical grade sequencing is performed by outside CLIA labs. All data processing, analysis, interpretation and report generation is performed in-house.
Entire test performed in-house
Test performance comments
Specimen preparation and clinical grade sequencing is performed by outside CLIA labs. All data processing, analysis, interpretation and report generation is performed in-house.
Analytical Validity:
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The Genomic Unity® Whole Genome Analysis is a whole genome sequence based test designed to identify genetic variants that correlate with the patient's clinical symptoms. This test includes sequence analysis (single nucleotide variants, deletions/insertions, intronic, regulatory and intergenic variants); analysis of copy number variants, duplications/deletions, regions of homozygosity, mobile element …
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Assay limitations:
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The false negative rate for repeat expansions has not been determined.
Proficiency testing (PT):
Is proficiency testing performed for this test?
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Yes
Method used for proficiency testing: Help
Intra-Laboratory
Yes
Method used for proficiency testing: Help
Intra-Laboratory
VUS:
Software used to interpret novel variations
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Proprietary Variantyx Genomic Intelligence platform
Laboratory's policy on reporting novel variations Help
Test results will only be released to the ordering healthcare provider and additional healthcare provider(s) indicated on the test requisition form.
Proprietary Variantyx Genomic Intelligence platform
Laboratory's policy on reporting novel variations Help
Test results will only be released to the ordering healthcare provider and additional healthcare provider(s) indicated on the test requisition form.
Recommended fields not provided:
Citations to support 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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Not provided
Additional Information
Reviews:
Clinical resources:
Practice guidelines:
Consumer 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.