Clinical Genome and Ancestry Report (CGAR)

Clinical Genome and Ancestry Report (CGAR) prioritizes and organizes clinically implicated genetic variants from genome sequencing to support interpretation using genotype-derived ancestral composition and matched-population allele frequencies.


Key Features:

  • Organization into seven clinical categories: Organizes variants into seven distinct categories aligned with established clinical workflows.
  • Reported Disease-Associated Variants: Identifies variants previously documented as linked to specific diseases.
  • Rare- and High-Impact Variants in Putative Disease-Associated Genes: Detects rare, potentially high-impact variants within genes suspected of disease association.
  • Secondary Findings (ACMG): Flags findings recommended for return by the American College of Medical Genetics and Genomics (ACMG).
  • Actionable Pharmacogenomic Variants: Highlights variants with known implications for drug response and pharmacogenomic actionability.
  • Focused Reports for Candidate Genes: Generates detailed reports centered on user-specified candidate genes.
  • De Novo Variant Candidates for Trio Analysis: Identifies candidate de novo mutations present in an offspring and absent in parents.
  • Germline and Somatic Variants for Cancer: Identifies germline and somatic variants implicated in cancer risk, diagnosis, treatment, and prognosis.
  • Integration with genotype-derived ancestral composition: Integrates genotype-derived ancestry and highlights allele frequencies from matched populations to inform population-specific interpretation.
  • External database linkage: Provides comprehensive external links to variant-centric and phenotype databases for further exploration and validation.

Scientific Applications:

  • Clinical variant prioritization: Prioritizes variants from genome sequencing for clinical interpretation and reporting.
  • Variant discovery in candidate genes: Supports detection of rare and high-impact variants in putative disease-associated genes for research and diagnosis.
  • ACMG secondary findings reporting: Identifies and flags secondary findings recommended by ACMG for clinical disclosure.
  • Pharmacogenomic-guided therapy: Enables identification of actionable pharmacogenomic variants to inform drug-response considerations.
  • Trio-based de novo mutation analysis: Facilitates identification of de novo variant candidates in trio analyses for genetic disorder diagnosis.
  • Cancer genomics interpretation: Assesses germline and somatic variants relevant to cancer risk assessment, diagnosis, treatment selection, and prognosis.
  • Ancestry-aware allele frequency interpretation: Uses genotype-derived ancestry and matched-population allele frequencies to contextualize variant prevalence across populations.

Methodology:

Organizes variants into seven clinical categories, identifies rare/high-impact and de novo candidates, integrates genotype-derived ancestral composition to highlight matched-population allele frequencies, flags ACMG secondary findings and cancer-relevant germline/somatic variants, highlights actionable pharmacogenomic variants, generates focused candidate-gene reports, and links variants to external variant-centric and phenotype databases.

Topics

Details

Added:
1/14/2020
Last Updated:
11/24/2024

Operations

Publications

Lee I, Negron JA, Hernandez‐Ferrer C, Alvarez WJ, Mandl KD, Kong SW. The Clinical Genome and Ancestry Report: An interactive web application for prioritizing clinically implicated variants from genome sequencing data with ancestry composition. Human Mutation. 2019;41(2):387-396. doi:10.1002/humu.23942. PMID:31691385. PMCID:PMC7180092.

PMID: 31691385
PMCID: PMC7180092
Funding: - Foundation for the National Institutes of Health: R01MH107205, R24OD024622, U01HG007530, U01TR002623

Documentation

Downloads

Links