GTR Test Accession:
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GTR000508892.2
Last updated in GTR:
2013-12-17
View version history
GTR000508892.2,
last updated:
2013-12-17
GTR000508892.1,
registered in GTR:
2013-12-17
Last annual review date for the lab: 2023-12-11
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At a Glance
Test purpose:
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Diagnosis;
Mutation Confirmation;
Screening
Conditions (2):
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Charcot-Marie-Tooth disease type 1E;
Dejerine-Sottas disease
Genes (1):
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PMP22 (17p12)
Methods (1):
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Molecular Genetics - Sequence analysis of the entire coding region: Bi-directional Sanger Sequence Analysis
Target population: Help
Not provided
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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CMT1E PMP22 sequencing
Specimen Source:
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- Isolated DNA
- Paraffin block
- Peripheral (whole) blood
Test Order Code:
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CMT1E PMP22 sequencing
Contact Policy:
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Post-test email/phone consultation regarding genetic test results and interpretation is provided to patients/families.
Pre-test email/phone consultation regarding genetic test results and interpretation is provided to patients/families.
Pre-test email/phone consultation regarding genetic test results and interpretation is provided to patients/families.
How to Order:
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EDTA-blood, DNA, other peripheral whole blood samples (not frozen).
Other specimen after consultation.
Order URL
Other specimen after consultation.
Order URL
Test service:
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Clinical Testing/Confirmation of Mutations Identified Previously
Genetic counseling
Result interpretation
Genetic counseling
Result interpretation
Test additional service:
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Custom mutation-specific/Carrier testing
Test development:
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Test developed by laboratory (no manufacturer test name)
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:
Lab contact for this test,
Test strategy
Conditions
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Total conditions: 2
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 *
Sequence analysis of the entire coding region
Bi-directional Sanger Sequence Analysis
* Instrument: Not provided
Clinical Information
Test purpose:
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Diagnosis;
Mutation Confirmation;
Screening
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS?
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Identified variants are documented in-house and are comprehensively evaluated using mutation databases and literature by scientific and medical directors.
Identified variants are documented in-house and are comprehensively evaluated using mutation databases and literature by scientific and medical directors.
Will the lab re-contact the ordering physician if variant interpretation changes?
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Yes.
Yes.
Recommended fields not provided:
Clinical validity,
Clinical utility,
Target population,
Are family members with defined clinical status recruited to assess significance of VUS without charge?,
Is research allowed on the sample after clinical testing is complete?,
Sample negative report,
Sample positive report
Technical Information
Test Comments:
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Screening for duplications/deletions of PMP22 (see CMT1A/HNPP) and testing for other types of CMT also available.
Availability:
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Tests performed
Entire test performed in-house
Entire test performed in-house
Analytical Validity:
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Analytical sensitivity and specificity >99%.
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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A collection of bioinformatic tools.
Laboratory's policy on reporting novel variations Help
Novel variations are evaluated and reported if suspected relevant.
A collection of bioinformatic tools.
Laboratory's policy on reporting novel variations Help
Novel variations are evaluated and reported if suspected relevant.
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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Not provided
Additional Information
Reviews:
Clinical resources:
Molecular resources:
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.