motif-analysislisted

# Motif Analysis of ENCODE Peak Data ## When to Use - User wants to discover transcription factor binding motifs in ChIP-seq or ATAC-seq peaks - User asks about "motif enrichment", "HOMER", "MEME", or "de novo motif discovery" - User needs to validate ChIP-seq targets by checking if the expected motif is enriched - User wants to find co-binding partners or co-factor motifs in peak regions - Example queries: "find motifs in my CTCF peaks", "run HOMER on ATAC-seq peaks", "what TFs co-bind with p300 in liver?" Help the user perform de novo and known motif enrichment analysis on ENCODE ChIP-seq and ATAC-seq peaks. Motif analysis serves two critical purposes: (1) validating that ChIP-seq experiments pulled down the expected transcription factor, and (2) discovering co-regulatory partners that co-bind with the target factor. This skill covers the two major tool suites -- HOMER and MEME Suite -- from input preparation through result interpretation. ## Literature Foundation | Reference | Journal | Key Contribution | DOI | Citations | |-----------|---------|-----------------|-----|-----------| | Heinz et al. (2010) | Molecular Cell | HOMER: Simple combinations of lineage-determining TFs prime cis-regulatory elements; introduced findMotifsGenome.pl for ChIP-seq motif analysis | [10.1016/j.molcel.2010.05.004](https://doi.org/10.1016/j.molcel.2010.05.004) | ~6,000 | | Bailey et al. (2009) | Nucleic Acids Research | MEME Suite: comprehensive tools for motif discovery (MEME), enrichme