A new locus-specific database (LSDB) for mutations in the TGFBR2 gene: UMD-TGFBR2

Area of Science:

• Genetics
• Molecular Biology
• Medical Genetics

Background:

• The TGFBR2 gene is implicated in multiple diseases, including cancers, Marfan syndrome (MFS), Loeys-Dietz syndrome (LDS), and Familial Thoracic Aortic Aneurysms and Dissections (TAAD2).
• Current knowledge indicates that TGFBR2 mutations are not disease-specific, and complex genotype-phenotype relationships emerge only after accumulating multiple mutations.
• Understanding these complex genetic underpinnings is crucial for diagnosing and managing these associated conditions.

Purpose of the Study:

• To establish a locus-specific database for the TGFBR2 gene to facilitate comprehensive mutational analysis.
• To consolidate and organize known TGFBR2 mutations associated with various genetic disorders and cancers.
• To provide a centralized resource for researchers investigating the role of TGFBR2 in disease pathogenesis.

Main Methods:

• Development and implementation of a locus-specific database using Universal Mutation Database (UMD) software.
• Systematic collection and categorization of TGFBR2 mutations from scientific literature and clinical data.
• Online accessibility of the database for public use and data contribution.

Main Results:

• The TGFBR2 mutation database contains 85 entries.
• Specific numbers of mutations are linked to MFS (12), incomplete MFS (6), LDS type I (30), LDS type II (10), and TAAD2 (7).
• Additionally, 20 mutations are associated with various cancers, highlighting the gene's pleiotropic effects.

Conclusions:

• The TGFBR2 mutation database serves as a valuable tool for advancing the understanding of genotype-phenotype correlations in MFS, LDS, TAAD2, and cancers.
• This resource aids in the clinical and research-based mutational analysis of the TGFBR2 gene.
• The database promotes collaborative efforts in studying the complex role of TGFBR2 in human diseases.