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effective_genome_sizes

Effective genome size refers to the length of the "mappable" genome - regions that can be uniquely mapped by sequencing reads. This metric is crucial for proper normalization in many deepTools commands.

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What it does and how to use it

A skill that teaches Claude Code to do scientific tasks well. It is packaged knowledge the model uses whenever it is relevant.

  1. Install the skill (command above).
  2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
  3. No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/effective-genome-sizes && curl -fsSL https://doutorai.pt/data/lib/skills__effective-genome-sizes.md -o .claude/skills/effective-genome-sizes/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

# Effective Genome Sizes

## Definition

Effective genome size refers to the length of the "mappable" genome - regions that can be uniquely mapped by sequencing reads. This metric is crucial for proper normalization in many deepTools commands.

## Why It Matters

- Required for RPGC normalization (`--normalizeUsing RPGC`)
- Affects accuracy of coverage calculations
- Must match your data processing approach (filtered vs unfiltered reads)

## Calculation Methods

1. **Non-N bases**: Count of non-N nucleotides in genome sequence
2. **Unique mappability**: Regions of specific size that can be uni

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