Peaksat

Peaksat estimates optimal sequencing depth for peak saturation in ChIP-seq and other sequence-enrichment assays (CUT&RUN, ATAC-seq) by analyzing peak saturation curves to inform experimental design and quality control, and is implemented as an R package.

Key Features:

• R package implementation: Provided as an R package for programmatic analysis of sequencing data.
• Target read depth estimation: Provides estimates of target read depth required for epigenomic experiments by analyzing peak saturation curves.
• Cross-method applicability: Applies peak saturation analysis to ChIP-seq and other sequence-enrichment methods including CUT&RUN and ATAC-seq.
• Per-library optimization guidance: Estimates required reads per library and indicates how many additional reads may be necessary when current data are insufficient.

Scientific Applications:

• ChIP-seq histone modification studies: Establishes distinctive read depth requirements for ChIP-seq of histone modifications across different cell lines.
• Sequence-enrichment assay planning: Informs sequencing strategy and depth decisions for CUT&RUN and ATAC-seq experiments.

Methodology:

Analyzes peak saturation curves derived from ChIP-seq and other sequence-enrichment data and assesses those curves to estimate the sequencing depth required to achieve comprehensive peak detection.