Anterior segment defects
Clinical Genetic Test
offered by
GTR Test Accession: Help GTR000531470.2
Last updated in GTR: 2016-07-13
Last annual review date for the lab: 2022-01-21 Past due LinkOut
At a Glance
Anterior segment dysgenesis 1; Aniridia 1; Anterior segment anomalies with or without cataract; ...
B3GLCT (13q12.3), COL4A1 (13q34), CYP1B1 (2p22.2), EYA1 (8q13.3), FOXC1 (6p25.3), ...
Molecular Genetics - Deletion/duplication analysis: Multiplex Ligation-dependent Probe Amplification (MLPA); ...
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Ordering Information
Offered by: Help
Department of Clinical Genetics
View lab's website
Specimen Source: Help
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 a 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
Test service: Help
Clinical Testing/Confirmation of Mutations Identified Previously
Confirmation of research findings
Custom Deletion/Duplication Testing
Custom Sequence Analysis
Test additional service: Help
Custom mutation-specific/Carrier testing
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: 12
Condition/Phenotype Identifier
Test Targets
Genes Help
Total genes: 13
Gene Associated Condition Germline or Somatic Allele (Lab-provided) Variant in NCBI
Total methods: 2
Method Category Help
Test method Help
Deletion/duplication analysis
Multiplex Ligation-dependent Probe Amplification (MLPA)
Applied Biosystems 3130XL
Sequence analysis of the entire coding region
Next-Generation (NGS)/Massively parallel sequencing (MPS)
Illumina MiSeq
Clinical Information
Test purpose: Help
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS? Help
We follow the guidelines by Richards eta l. 2015 ACMG, Genet Med

Are family members with defined clinical status recruited to assess significance of VUS without charge? Help

Will the lab re-contact the ordering physician if variant interpretation changes? Help
Recommended fields not provided:
Technical Information
Availability: Help
Tests performed
Entire test performed in-house
Analytical Validity: Help
NGS sensitivity is >95%
Proficiency testing (PT):
Is proficiency testing performed for this test? Help
Software used to interpret novel variations Help
Variants are analysed using SIFT, polyphen2, Align GVGD and MutationTaster for predictions. If possible we perform segregation analysis.

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:
Regulatory Approval
FDA Review: Help
Not provided
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.