The functional genomics laboratory: functional validation of genetic variants

Area of Science:

• Human molecular genetics
• Genomics
• Biochemistry

Background:

• Interpreting rare genetic variants of unknown clinical significance poses a major challenge in human molecular genetics.
• Accurate diagnosis is vital for patient care, disease prediction, and genetic counseling.
• Conclusive evidence of variant pathogenicity is essential for clinical decision-making.

Purpose of the Study:

• To introduce the challenges in interpreting variants of unknown clinical significance.
• To provide an overview of functional genomics approaches for assessing gene function and variant consequences.
• To highlight the application of functional genomics in inborn errors of metabolism (IEM).

Main Methods:

• Review of recent advances in genetic screening.
• Overview of functional genomics techniques.
• Case examples of functional genomics studies in mitochondrial disorders and other IEMs.

Main Results:

• Functional genomics provides powerful tools to determine the functional consequences of genetic variants.
• These studies are crucial for classifying variants and establishing pathogenicity.
• Examples demonstrate successful application in understanding IEMs.

Conclusions:

• Functional genomics is indispensable for resolving the clinical significance of genetic variants.
• This approach enhances diagnostic certainty and guides patient management in IEMs.
• Further application of functional genomics will improve genetic diagnostics and counseling.