The Eukaryotic Promoter Database, EPD: new entry types and links to gene expression data

Area of Science:

• Genomics
• Bioinformatics
• Molecular Biology

Background:

• Eukaryotic promoters are crucial regulatory DNA regions.
• Accurate identification of transcription start sites (TSS) is essential for understanding gene regulation.
• A centralized, annotated database is needed for efficient promoter research.

Purpose of the Study:

• To present the Eukaryotic Promoter Database (EPD) as a comprehensive resource.
• To provide access to annotated eukaryotic Pol II promoter sequences.
• To facilitate comparative sequence analysis and data integration.

Main Methods:

• Curating experimentally determined Pol II promoter sequences.
• Annotating promoter entries with TSS mapping data and cross-references.
• Developing World Wide Web interfaces for data access and analysis.
• Generating updated base frequency matrices for promoter elements.

Main Results:

• EPD offers an annotated, non-redundant collection of eukaryotic Pol II promoters.
• Promoter sequences are linked to nucleotide sequence entries.
• Detailed annotations include TSS data, cross-references to major biological databases (EMBL, SWISS-PROT, TRANSFAC), and literature.
• The database structure supports dynamic extraction of promoter subsets for analysis.
• Web interfaces allow flexible data viewing, selection, extraction, and navigation.

Conclusions:

• EPD is a valuable, dynamic resource for eukaryotic promoter research.
• The database enhances comparative genomics and gene regulation studies.
• Integrated access and analysis tools streamline biological data exploration.