Ohdo syndrome, SBBYS variant (SBBYSS) - Say-Barber-Biesecker-Young-Simpson syndrome (SBBYSS; MIM 603736) is a variant of Ohdo syndrome, a disorder characterized by blepharophimosis and mental retardation.  Individuals with SBBYSS have a distinct facial appearance with severe blepharophimosis, ptosis and an immobile, expressionless face.  Other common features include mental retardation, unusually long thumbs and great toes, jointread more

Tests Available

By gene: KAT6B
Next Generation Sequencing
Test Code: 1811
Deletion / Duplication
Test Code: 1812
NGS/Del Dup Comprehensive
Test Code: 1813

Test Details

Technical Information
Disease Groups: 
Neurological and Muscular Disorders
Eye Disorders
CPT Codes: 
81479 x 1
Turnaround Time: 
Typically 2 to 4 weeks from receipt of a sample in the laboratory. All cases involving ongoing pregnancies will be expedited.
Non-Prenatal Specimens: 
  1. Whole blood: purple-top (EDTA) tube, minimum of 3 ml
  2. Genomic DNA: a minimum of 3 µg (at a concentration of at least 30 ng/µl)
  3. Fibroblasts: 2 confluent T-25 flasks
  4. Saliva: only samples collected in Oragene DNA Self-Collection Kit or Oragene Saliva Collection Kit for Young Children are accepted
Prenatal Specimens: 
  1. Cultured cells: 2 confluent T-25 flasks derived from amnio or CVS samples
  2. Genomic DNA: a minimum of 3 µg (at a concentration of at least 30 ng/µl)
Ship all specimen types at room temperature by overnight courier. Do not freeze.

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