Test for SLC26A4-Related Pendred Syndrome
Clinical Genetic Test
Help
offered by
GTR Test Accession: Help GTR000254578.2
CAP
INHERITED DISEASEENDOCRINOLOGYSYNDROMIC DISEASE ... View more
Last updated in GTR: 2012-09-27
Last annual review date for the lab: 2022-10-27 Past due LinkOut
At a Glance
Diagnosis
Pendred syndrome
Genes (1): Help
SLC26A4 (7q22.3)
Molecular Genetics - Deletion/duplication analysis: Multiplex Ligation-dependent Probe Amplification (MLPA); ...
Not provided
Not provided
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Ordering Information
Offered by: Help
Genome Diagnostics Laboratory
View lab's website
Specimen Source: Help
Who can order: Help
  • Health Care Provider
Lab contact: Help
Leslie Steele, MSc, Co-ordinator
leslie.steele@sickkids.ca
416-813-7200 ext 1
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.
Test service: Help
Clinical Testing/Confirmation of Mutations Identified Previously
Test additional service: Help
Custom Prenatal 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:
Conditions Help
Total conditions: 1
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)
Sequence analysis of the entire coding region
Bi-directional Sanger Sequence Analysis
* Instrument: Not provided
Clinical Information
Test purpose: Help
Diagnosis
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS? Help
Novel variations are evaluated using a variety of algorithms including splice site analysis, sequence conservation within species and isoforms and functional estimation (i.e. SIFT, Polyphen, AlignGVGD & Mutation Taster). If the variation cannot be placed into a pathogenic or non-pathogenic state, further studies including evaluation of family members and/or assessing … View more

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
No.
Recommended fields not provided:
Technical Information
Availability: Help
Tests performed
Entire test performed in-house
Analytical Validity: Help
PCR-based sequencing detects 99% of the reported mutations in the SLC26A4 gene. The sensitivity of DNA sequencing is over 99% for the detection of nucleotide base changes, small deletions, insertions and indels in the region analyzed.
Proficiency testing (PT):
Is proficiency testing performed for this test? Help
Yes

Method used for proficiency testing: Help
Formal PT program

PT Provider: Help
American College of Medical Genetics / College of American Pathologists, ACMG/CAP
VUS:
Software used to interpret novel variations Help
SIFT, POLYPHEN2, Align GVGD, Mutation Taster, Splicing Programs

Laboratory's policy on reporting novel variations Help
They are reported as such
Recommended fields not provided:
Regulatory Approval
FDA Review: Help
Category: Not Applicable
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.