CNGA3 single gene sequencing
GTR Test Accession: Help GTR000552936.2
OPHTHALMOLOGYPSYCHIATRICNERVOUS SYSTEM ... View more
Last updated in GTR: 2021-01-15
Last annual review date for the lab: 2024-01-22 LinkOut
At a Glance
Diagnosis; Mutation Confirmation
Achromatopsia; Cone-rod dystrophy
Genes (1): Help
CNGA3 (2q11.2)
Molecular Genetics - Sequence analysis of select exons: Bi-directional Sanger Sequence Analysis; ...
Not provided
Not provided
Not provided
Ordering Information
Offered by: Help
Specimen Source: Help
Who can order: Help
  • Genetic Counselor
  • Health Care Provider
  • Licensed Physician
CPT codes: Help
**AMA CPT codes notice
Contact Policy: Help
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: Help
Blood: (1) 3-5ml in EDTA (lavender top tube); for patients under 1 year of age, we accept 1-2ml (minimum). Blood is our preferred specimen type to receive for testing. Blood Specimens should be received within 72 hours of collection if possible – maximum five days. Store specimen at ambient room …
View more
Order URL
Test service: Help
Clinical Testing/Confirmation of Mutations Identified Previously
Test additional service: Help
Custom mutation-specific/Carrier testing
Test development: Help
Test developed by laboratory but exempt from FDA oversight (eg. NYS CLEP approved, offered within a hospital or clinic)
Informed consent required: Help
Yes
Pre-test genetic counseling required: Help
Decline to answer
Post-test genetic counseling required: Help
Decline to answer
Recommended fields not provided:
Conditions Help
Total conditions: 2
Condition/Phenotype Identifier
Test Targets
Genes Help
Total genes: 1
Gene Associated Condition Germline or Somatic Allele (Lab-provided) Variant in NCBI
Methodology
Total methods: 4
Method Category Help
Test method Help
Instrument *
Sequence analysis of select exons
Bi-directional Sanger Sequence Analysis
Sequence analysis of the entire coding region
Bi-directional Sanger Sequence Analysis
Sequence analysis of the entire coding region
Next-Generation (NGS)/Massively parallel sequencing (MPS)
Targeted variant analysis
Bi-directional Sanger Sequence Analysis
* Instrument: Not provided
Clinical Information
Test purpose: Help
Diagnosis; Mutation Confirmation
Variant Interpretation:
Are family members with defined clinical status recruited to assess significance of VUS without charge? Help
Yes.

Will the lab re-contact the ordering physician if variant interpretation changes? Help
Yes.
Recommended fields not provided:
Technical Information
Availability: Help
Tests performed
Interpretation performed in-house
Report generated in-house
Specimen preparation performed in-house
Wet lab work performed both in-house and at an outside lab

Test performance comments
Sanger sequencing is performed at an outside lab
Analytical Validity: Help
More than 40 samples with known results were retested with the panel. The results are 100% repeatable.
Proficiency testing (PT):
Is proficiency testing performed for this test? Help
No
Recommended fields not provided:
Regulatory Approval
FDA Review: Help
Category: FDA exercises enforcement discretion
Additional Information

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.