Find Binding Motifs

Best fit: find binding motifs — an epigenomics goal.

The prompt

Run MACS3 peak calling on ENCODE CTCF ChIP-seq in HepG2 (ENCSR000AHD), then use HOMER de novo motif discovery on the peaks - how does the discovered CTCF motif compare to the JASPAR consensus and which co-factor motifs are enriched, then recommend the top co-factor motif for a ChIP-seq validation experiment to identify liver-specific CTCF collaborating factors?

What each tool contributes

• epigenomics — ATAC-seq and ChIP-seq peak calling and differential analysis via MACS3
• homer find motifs genome — De novo and known motif enrichment in genomic regions

Why these tools pair

MACS3 identifies enriched regions; HOMER discovers binding motifs in those peaks — the standard ChIP-seq analysis pipeline

Data flow

Every tool operates on the same input: bam_file.

Read next

• Which tool? — match a single goal to a tool.
• Workflows — every workflow and recipe.
• How the orchestrator picks tools — the same chain from a plain-language goal.