proChIPdb: a chromatin immunoprecipitation database for prokaryotic organisms

Area of Science:

• Microbiology
• Genomics
• Bioinformatics

Background:

• Prokaryotic gene expression is primarily regulated by transcription factors (TFs) that bind to DNA.
• Chromatin immunoprecipitation (ChIP) coupled with DNA sequencing (ChIP-seq) identifies TF binding sites, crucial for understanding gene regulation.
• Publicly available ChIP-seq data for prokaryotes is fragmented, hindering comprehensive analysis and reuse.

Purpose of the Study:

• To create a centralized, accessible repository for prokaryotic ChIP-seq and ChIP-exo data.
• To facilitate the discovery and understanding of transcriptional regulatory networks in prokaryotes.
• To promote data dissemination and reuse for prokaryotic genomics research.

Main Methods:

• Development of proChIPdb (prochipdb.org), an interactive web database.
• Collection and curation of public ChIP-seq/-exo data from various prokaryotic organisms.
• Implementation of dashboards with genome viewers, binding site information, and motif enrichment plots.

Main Results:

• proChIPdb provides curated TF binding sites and associated data for diverse prokaryotes, including key TFs in Escherichia coli.
• The database offers interactive tools for data visualization, exploration, and download.
• Users can search for specific TFs or target genes and access external resources for further biological context.

Conclusions:

• proChIPdb addresses the unmet need for a unified platform for prokaryotic TF binding data.
• The database supports regulon discovery and enhances the understanding of prokaryotic gene regulation.
• Future expansion will broaden coverage across the prokaryotic domain, supporting broader genomic research.