Notification Text

CNGnome®

What is CNGnome®?

CNGnome® is a low-pass whole genome sequencing assay (8x coverage) designed for the reliable detection of copy number variants (CNVs). With increased resolution compared to traditional karyotyping and microarray analysis, it offers a more precise and comprehensive view of genomic changes.

Key Features of CNGnome®
  • High-Resolution CNV Detection
    Accurately identifies copy number changes larger than 25 kb across the entire genome.
  • Uniparental Disomy Detection
    Reliable identification of whole chromosome uniparental disomy (UPD) events.
  • Greater Accuracy & Precision
    Unlike microarrays, CNGnome is not restricted by probe spacing or density, ensuring improved accuracy in defining CNVs.
  • Whole-Genome Coverage
    Provides uniform coverage across the genome, overcoming the limitations of permanent probe selection and placement in array-based methods.
Clinical Applications

CNGnome® may be considered for:

  • Patients with developmental delays, intellectual disability, or congenital anomalies
  • Evaluation of recurrent pregnancy loss or infertility
  • Confirmation of suspected chromosomal abnormalities not detected by standard tests
  • Comprehensive follow-up after negative karyotype or microarray results
Why Choose CNGnome®?
  • More sensitive than traditional karyotyping
  • More precise than microarrays
  • Provides a genome-wide, unbiased assessment of copy number changes
Specimen Requirements
Clinical usageCNV analysis utilizing low pass genome sequencing assay (8x). Increased resolution over traditional karyotype and microarray analysis.
• Reliable detection of copy number changes larger than 25kb throughout the entire genome
• Reliable detection of whole chromosome uniparental disomy
• Better accuracy and precision in defining CNVs as the assay is not limited by probe spacing and density
• Coverage across the genome as opposed to limitations incurred by permanent probe selection and placement

The specimen will be tested by our qualified referral lab
Type of sampleFor fetus:
• 20ml Amniotic Fluid (Sterile 15mL conical tubes)
• 10 – 15pcs Chorionic Villus Sample (CVS) (Sterile 15mL conical tubes with Normal Saline)
• 30mg Tissue of Product of Conception (POC) (Sterile 50ml conical tube with Normal Saline)
• 1ml Fetal Blood (EDTA Tube)
IMPORTANT:
• For fetus sample, 3ml Maternal Blood (EDTA Tube) is compulsory to rule out maternal cell contamination

For newborn baby:
• Dried Blood Spots: 5 spots (DBS card)
• 1ml Blood (EDTA Tube)

For individual:
• Dried Blood Spots: 5 spots (DBS card)
• 3ml Blood (EDTA Tube)
• Buccal Swab (2 swab samples in Sterile Container, WITHOUT Gel)
NOTE: DBS card will ONLY be provided upon request
Patient requirement– Gestation age CVS: 10 – 12 weeks
– Gestation age for Amniotic Fluid: ≥15 weeks
– No fasting required

IMPORTANT:
• Please sign the International Informed Consent form

NOTE: Patient’s clinical presentation is an essential part of fully interpreting genetic test results. Kindly include any applicable medical records or clinical notes with the sample at the time of test submission.
Storage & transportationSterile Tube / EDTA Tube – Please store at 4°C if to be kept overnight
Buccal Swab / DBS card – Please store at room temperature
Turnaround Time (TAT)18 working days