local-methylation-profile

Analyze local DNA methylation profiles around user-provided genomic regions and plot mean patterns.

12|3|Updated Nov 4, 2025
One-click install
npx skills add https://github.com/BIsnake2001/ChromSkills --skill local-methylation-profile
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: local-methylation-profile
Source: https://github.com/BIsnake2001/ChromSkills/tree/main/22.local-methylation-profile
Command: npx skills add https://github.com/BIsnake2001/ChromSkills --skill local-methylation-profile

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Analyzes local DNA methylation profiles around user-provided genomic regions and visualizes the average methylation pattern around those regions (e.g. TSS, CTCF peaks).

Core Features & Use Cases

  • Always prompt user for which columns in the BED files are methylation fraction/percent. Never decide by yourself.
  • Generate profile: Bin methylation around regions (±flank, fixed bin size), aggregate mean±SE.
  • Visualize: Plot mean profile with ribbon and center line.

Quick Start

Provide methylation.bed and target_regions.bed along with the column indices for methylation fraction and coverage to generate the local methylation profile and its visualization.

Frequently Asked Questions about local-methylation-profile

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I visualize local DNA methylation profiles around transcription start sites?

To visualize local DNA methylation profiles around transcription start sites, provide a methylation BED file and a target regions BED file. The tool bins methylation data around the specified regions and outputs a profile TSV and a plot showing mean and standard error.

What format should methylation and target region files be in for generating a methylation profile plot?

Methylation and target region files should be in BED format for generating a methylation profile plot. You will be prompted to specify the exact column indices for methylation fraction and coverage during the analysis to ensure accurate aggregate visualization.

Can I aggregate average methylation patterns around specific genomic peaks?

Yes, you can aggregate average methylation patterns around specific genomic peaks. By providing target regions like TF peaks or promoters in a BED file, the tool calculates mean methylation with standard error across fixed bins and generates a visualization plot.

Do I need to manually specify methylation fraction columns when analyzing BED files?

Yes, you must manually specify methylation fraction columns when analyzing BED files. The tool always prompts for the exact column indices for methylation fraction or percentage and never decides automatically, ensuring correct data mapping for the aggregate profile.

What outputs are generated from a local methylation profile analysis?

The outputs generated from a local methylation profile analysis include a profile TSV file and a plot image. The plot visualizes the mean methylation pattern with a center line and a ribbon representing standard error across the binned flanking regions.