Related Experiment Video
Updated: Jun 11, 2025

Author Spotlight: Characterizing DNA Replication of Pathogenic Repeats to Uncover Mechanisms of Replication Fork Stalling and Expansion
Published on: September 13, 2024
DRED: A Comprehensive Database of Genes Related to Repeat Expansion Diseases
Qingqing Shi1, Min Dai1,2, Yingke Ma1
1Key Laboratory of Genetic Network Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
A new database, DRED, catalogs genes linked to repeat expansion diseases. It includes known disease-related genes and predicts new ones, aiding research and diagnosis of conditions like Huntington's disease.
Area of Science:
- Genetics
- Genomic Medicine
- Bioinformatics
Background:
- Tandem repeat expansions in genes are associated with severe neurological disorders.
- Existing knowledge on repeat expansion disease genes is fragmented across scientific literature.
- Systematic prediction of novel genes implicated in repeat expansion diseases is currently limited.
Purpose of the Study:
- To establish a comprehensive, manually curated database of genes associated with repeat expansion diseases.
- To predict and include genes with the potential to cause diseases through repeat expansion.
- To provide a centralized resource for researchers and clinicians focused on repeat expansion disorders.
Main Methods:
- Manual curation of known repeat expansion disease genes from PubMed and OMIM.
- Computational prediction of potential disease-causing genes based on repeat composition, genetic variations, genomic features, and disease associations.
- Integration of data with external resources like NCBI and ClinVar.
Main Results:
- The Database of genes related to Repeat Expansion Diseases (DRED) includes all 61 known genes associated with repeat expansion diseases.
- DRED identifies 516 additional genes with the potential to cause diseases via repeat expansion.
- The database offers detailed repeat information and links to external genetic variation and clinical databases.
Conclusions:
- DRED serves as a valuable, user-friendly resource for the study of repeat expansion diseases.
- The database facilitates both basic research and clinical diagnosis of genetic disorders caused by repeat expansions.
- DRED will be regularly updated to incorporate newly discovered genes and associated information.
Related Concept Videos
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...
Exon Recombination
Exon shuffling follows “splice frame rules.” Each exon...
Gene Duplication and Divergence
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
Comparing Copy Number Variations and SNPs
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Gene Families
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
Multi-species Conserved Sequences
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...

