Weeder

Weeder performs de novo discovery of conserved DNA sequence motifs to identify transcription factor binding sites (TFBS) and characterize regulatory elements controlling gene expression.

Key Features:

• De novo motif discovery: Employs a de novo approach to identify conserved motifs in DNA sequences without relying on pre-existing motif databases.
• Transcription factor binding site identification: Detects TFBS and conserved motifs likely bound by the same transcription factors.
• ChIP-Seq optimization: Optimized for analysis of large Chromatin Immunoprecipitation sequencing (ChIP-Seq) datasets for genome-wide TFBS identification.
• Input flexibility: Accepts promoter sequences from co-expressed or co-regulated genes and genomic regions identified by ChIP-Seq or similar high-throughput experiments.

Scientific Applications:

• Motif characterization: Characterization of sequence motifs that regulate gene expression.
• Transcriptional regulation analysis: Identification of TFBS to elucidate transcriptional control mechanisms.
• Genome-wide TFBS mapping: Analysis of large ChIP-Seq datasets to map TFBS across extensive genomic regions.

Methodology:

Performs de novo motif discovery on input DNA sequences (promoter regions or ChIP-Seq-derived regions), identifying conserved motifs and TFBS without using pre-existing motif databases, with optimizations for large ChIP-Seq datasets.