GTR Test Accession:
Help
GTR000290814.1
Registered in GTR:
2013-04-23
View version history
GTR000290814.1,
registered in GTR:
2013-04-23
Last annual review date for the lab: 2022-01-21
Past due
LinkOut
At a Glance
Test purpose:
Help
Diagnosis
Conditions (3):
Help
Oculocutaneous albinism type 1;
Oculocutaneous albinism type 1B;
Tyrosinase-negative oculocutaneous albinism
Genes (1):
Help
TYR (11q14.3)
Methods (2):
Help
Molecular Genetics - Deletion/duplication analysis: Multiplex Ligation-dependent Probe Amplification (MLPA); ...
Target population: Help
Not provided
Clinical validity:
Help
Not provided
Clinical utility:
Help
Not provided
Ordering Information
Offered by:
Help
Specimen Source:
Help
- Amniotic fluid
- Cell culture
- Cell-free DNA
- Chorionic villi
- Fibroblasts
- Isolated DNA
- Peripheral (whole) blood
Who can order: Help
- Genetic Counselor
- Health Care Provider
- Licensed Dentist
- Licensed Physician
- Nurse Practitioner
- Physician Assistant
- Public Health Mandate
- Registered Nurse
Lab contact:
Help
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
A completed referral note, or letter stating name, dob, referral reason and the test that are requested. Also an address where to send the report and the invoice.
Order URL
Order URL
Test service:
Help
Clinical Testing/Confirmation of Mutations Identified Previously
Confirmation of research findings
Custom Deletion/Duplication Testing
Custom Sequence Analysis
Confirmation of research findings
Custom Deletion/Duplication Testing
Custom Sequence Analysis
Test additional service:
Help
Custom Prenatal Testing
Custom mutation-specific/Carrier testing
Custom mutation-specific/Carrier testing
Test development:
Help
Test developed by laboratory (no manufacturer test name)
Informed consent required:
Help
Decline to answer
Pre-test genetic counseling required:
Help
Decline to answer
Post-test genetic counseling required:
Help
Decline to answer
Recommended fields not provided:
Test Order Code,
Test strategy
Conditions
Help
Total conditions: 3
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: 2
Method Category
Help
Test method
Help
Instrument
Deletion/duplication analysis
Multiplex Ligation-dependent Probe Amplification (MLPA)
Applied Biosystems 3130XL capillary sequencing instrument
Sequence analysis of the entire coding region
Bi-directional Sanger Sequence Analysis
Applied Biosystems 3130XL capillary sequencing instrument
Clinical Information
Test purpose:
Help
Diagnosis
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS?
Help
Missense and silent changes that are unknown to HGMD database and to SNP databases (SNP137, 1000 genomes)
Missense and silent changes that are unknown to HGMD database and to SNP databases (SNP137, 1000 genomes)
Are family members with defined clinical status recruited to assess significance of VUS without charge?
Help
No.
No.
Will the lab re-contact the ordering physician if variant interpretation changes?
Help
No.
No.
Recommended fields not provided:
Clinical validity,
Clinical utility,
Target population,
Is research allowed on the sample after clinical testing is complete?,
Sample negative report,
Sample positive report
Technical Information
Availability:
Help
Tests performed
Entire test performed in-house
Entire test performed in-house
Analytical Validity:
Help
The bidirectional sequencing of the entire TYR coding region and flanking intron sequences has an analytical sensitivity and specificity of 99%. The MLPA analysis using probes in the TYR gene has an analytical sensitivity ans specificity of 99%.
Proficiency testing (PT):
Is proficiency testing performed for this test?
Help
No
No
VUS:
Software used to interpret novel variations
Help
Variants are analysed using SIFT, polyphen2, Align GVGD and Mutation Taster
Laboratory's policy on reporting novel variations Help
The person who ordered the test will receive a written report by ordinary mail.
Variants are analysed using SIFT, polyphen2, Align GVGD and Mutation Taster
Laboratory's policy on reporting novel variations Help
The person who ordered the test will receive a written report by ordinary mail.
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:
Help
Category:
FDA exercises enforcement discretion
Additional Information
Reviews:
Clinical 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.