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A New COL3A1 Mutation in Ehlers-Danlos Syndrome Vascular Type With Different Phenotypes in the Same Family
Francesca Cortini1,2, Barbara Marinelli1, Silvia Romi1,2
11 Department of Clinical Sciences and Community Health, University of Milan IRCCS Ca' Granda Foundation, Milano, Italy.
Insights
Vascular Ehlers-Danlos syndrome (vEDS) is a severe genetic disorder. A specific COL3A1 gene mutation was identified, confirming incomplete penetrance of vEDS-causing mutations.
Area of Science:
- Genetics
- Molecular Biology
- Medical Science
Background:
- Vascular Ehlers-Danlos syndrome (vEDS) is a rare, severe connective tissue disorder.
- It is primarily caused by mutations in the collagen type III alpha 1 chain (COL3A1) gene.
Abstract:
Vascular Ehlers-Danlos syndrome (vEDS) is a rare and severe connective tissue disorder caused by mutations in the collagen type III alpha I chain ( COL3A1) gene. We describe a pathogenetic heterozygous COL3A1 mutation c.3140 G>A, p. Gly1047Asp, identified using next-generation sequencing, in a 40-year-old Italian female. The genetic test performed on her relatives, which present different clinical phenotypes, confirmed that they carry the same mutation in heterozygous state. This finding confirms that mutations causing vEDS have an incomplete penetrance.
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