GTR Test Accession:
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GTR000515076.4
CAP
Last updated in GTR: 2020-08-11
View version history
GTR000515076.4, last updated: 2020-08-11
GTR000515076.3, last updated: 2019-07-30
GTR000515076.2, last updated: 2019-07-25
GTR000515076.1, last updated: 2017-09-18
Last annual review date for the lab: 2023-07-18
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At a Glance
Test purpose:
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Screening;
Pre-symptomatic;
Diagnosis; ...
Conditions (1):
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Transitory neonatal diabetes mellitus
Genes (2):
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HYMAI (6q24.2), PLAGL1 (6q24.2)
Methods (1):
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Molecular Genetics - Methylation analysis: Multiplex Ligation-dependent Probe Amplification (MLPA)
Target population: Help
Not provided
Clinical validity:
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The most common cause of transient neonatal diabetes is overexpression …
Clinical utility:
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Not provided
Ordering Information
Offered by:
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Specimen Source:
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- Cell culture
- Fibroblasts
- Saliva
- Buccal swab
- Cord blood
- Fetal blood
- Fresh tissue
- Product of conception (POC)
- Peripheral (whole) blood
- Chorionic villi
- Amniocytes
- Frozen tissue
- Amniotic fluid
- View specimen requirements
Who can order: Help
- Licensed Physician
- Nurse Practitioner
- Physician Assistant
- Health Care Provider
- Genetic Counselor
- Registered Nurse
CPT codes:
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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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•All samples should be shipped via overnight delivery at room temperature.
•No weekend or holiday deliveries.
•Label each specimen with the patient’s name, date of birth and date sample collected.
•Send specimens with complete requisition and consent form, otherwise, specimen processing may be delayed.
Order URL
•No weekend or holiday deliveries.
•Label each specimen with the patient’s name, date of birth and date sample collected.
•Send specimens with complete requisition and consent form, otherwise, specimen processing may be delayed.
Order URL
Test service:
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Confirmation of research findings
Clinical Testing/Confirmation of Mutations Identified Previously
Clinical Testing/Confirmation of Mutations Identified Previously
Test additional service:
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Custom mutation-specific/Carrier testing
Custom Prenatal Testing
Custom Prenatal Testing
Informed consent required:
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No
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 Order Code,
Lab contact for this test,
Test strategy,
Test development
Conditions
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Total conditions: 1
Condition/Phenotype | Identifier |
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Test Targets
Genes
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Total genes: 2
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 *
Methylation analysis
Multiplex Ligation-dependent Probe Amplification (MLPA)
* Instrument: Not provided
Clinical Information
Test purpose:
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Screening;
Pre-symptomatic;
Diagnosis;
Mutation Confirmation;
Monitoring
Clinical validity:
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The most common cause of transient neonatal diabetes is overexpression of imprinted genes PLAGL1 and HYMAI at 6q24, due to either paternal uniparental disomy of chromosome 6 (UPD6), duplication of 6q24 on the paternally inherited allele, or hypomethylation of the maternally inherited allele. 6q24 Methylation-Specific MLPA can detect copy number …
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View citations (1)
- Transient neonatal diabetes, a disorder of imprinting. Temple IK, et al. J Med Genet. 2002;39(12):872-5. doi:10.1136/jmg.39.12.872. PMID: 12471198.
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS?
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Variants are identified and evaluated using a custom collection of bioinformatic tools and comprehensively interpreted by our team of directors and genetic counselors.
Variants are identified and evaluated using a custom collection of bioinformatic tools and comprehensively interpreted by our team of directors and genetic counselors.
Are family members with defined clinical status recruited to assess significance of VUS without charge?
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Decline to answer.
Decline to answer.
Will the lab re-contact the ordering physician if variant interpretation changes?
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Yes.
Yes.
Research:
Is research allowed on the sample after clinical testing is complete?
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http://dnatesting.uchicago.edu/research-consent-form
http://dnatesting.uchicago.edu/research-consent-form
Recommended fields not provided:
Clinical utility,
Target population,
Sample negative report,
Sample positive report
Technical Information
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 99-100% Accuracy 100% Precision 100%
Proficiency testing (PT):
Is proficiency testing performed for this test?
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Yes
Method used for proficiency testing: Help
Formal PT program
PT Provider: Help
American College of Medical Genetics / College of American Pathologists, ACMG/CAP
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:
Laboratory's policy on reporting novel variations
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All novel and/or potentially pathogenic variants are confirmed by Sanger sequencing
All novel and/or potentially pathogenic variants are confirmed by Sanger sequencing
Recommended fields not provided:
Test Confirmation,
Assay limitations,
Description of internal test validation method,
Citations for Analytical validity,
Description of PT method,
Major CAP category, CAP category, CAP test list
Regulatory Approval
FDA Review:
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Category:
Not Applicable
Additional Information
Reviews:
Clinical resources:
Consumer resources:
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Patients and consumers
with specific questions about a genetic test should contact a health care provider or a genetics professional.