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Updated: Apr 16, 2026

In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
Human disease phenotypes associated with mutations in TREX1.
Gillian I Rice1, Mathieu P Rodero, Yanick J Crow
1Manchester Centre for Genomic Medicine, Institute of Human Development Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK.
Mutations in the single exon TREX1 gene, encoding a 314 amino acid protein, lead to complex genotype-phenotype relationships. These genetic variations are linked to serious autoimmune and neurological disorders.
Area of Science:
- Genetics and Molecular Biology
- Immunology
- Neurology
Background:
- The TREX1 gene, a single exon gene, encodes a 314 amino acid protein.
- The genotype-phenotype landscape associated with TREX1 is notably complex.
- Mutations in TREX1 have been implicated in various human diseases.
Purpose of the Study:
- To briefly describe human diseases associated with mutations in the TREX1 gene.
- To highlight the complexity of genotype-phenotype correlations in TREX1-related disorders.
Main Methods:
- Literature review of TREX1 mutations and associated diseases.
- Analysis of genotype-phenotype data for TREX1-related conditions.
Main Results:
- TREX1 mutations are associated with Aicardi-Goutières syndrome.
- Familial chilblain lupus and systemic lupus erythematosus are linked to TREX1 mutations.
- Retinal vasculopathy with cerebral leukodystrophy is also associated with TREX1 gene variations.
Conclusions:
- TREX1 mutations represent a significant genetic factor in a spectrum of complex human diseases.
- Understanding TREX1 genotype-phenotype correlations is crucial for diagnosis and management of these conditions.
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