Aclust2.0
Aclust2.0 performs unsupervised regional DNA methylation analysis on Illumina Infinium array data (450K and EPIC) and mouse array datasets using an R-based processing pipeline.
Key Features:
- Unsupervised clustering algorithm: Groups neighboring methylation sites using an unsupervised clustering approach that accounts for the spatial context of methylation patterns.
- Array compatibility: Supports Illumina Infinium 450K and EPIC human arrays and mouse array datasets.
- Five-step R-based pipeline: Implements a five-step processing pipeline in R covering preprocessing, clustering, regional analysis, statistical evaluation, and visualization.
- Regional methylation analysis: Focuses on detection and characterization of regionally coordinated DNA methylation patterns relevant to epigenetic regulation.
Scientific Applications:
- Molecular epidemiology: Identify associations between regional DNA methylation patterns and health outcomes or environmental exposures.
- Mouse model investigations: Characterize regional methylation in mouse arrays to investigate epigenetic mechanisms in disease models.
- Epigenetic regulation and disease research: Detect regionally coordinated methylation modifications associated with gene regulation and disease states.
Methodology:
Data preprocessing (cleaning and normalization), unsupervised clustering of methylation sites, regional analysis of clustered regions, statistical evaluation of cluster significance, and generation of visual outputs and reports.
Topics
Details
- License:
- Not licensed
- Cost:
- Free of charge
- Tool Type:
- library, workflow
- Programming Languages:
- R
- Added:
- 10/5/2022
- Last Updated:
- 11/24/2024
Operations
Publications
Oluwayiose OA, Wu H, Gao F, Baccarelli AA, Sofer T, Pilsner JR. Aclust2.0: a revamped unsupervised R tool for Infinium methylation beadchips data analyses. Bioinformatics. 2022;38(20):4820-4822. doi:10.1093/bioinformatics/btac583. PMID:36028931. PMCID:PMC9563687.
PMID: 36028931
PMCID: PMC9563687
Funding: - National Institutes of Health: P30-ES020957, R01-ES028298
- National Institutes of Health, Bethesda, Maryland: N01-HD-3-3355, N01-HD-3-3356, N01-HD-3-3358