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Bio Viromics

bio-viromics

Detect, classify, and QC viral contigs.

SKILL.md

Full skill instructions

Bio Viromics

When to use

  • Detect, classify, and QC viral contigs.

Prerequisites

  • Tools installed via pixi (see pixi.toml).
  • Reference DB root: /​media/​shared-expansion/​db/ (wsu; override per machine branch).
  • Input contigs are available.

Inputs

  • contigs.fasta

Outputs

  • results/​bio-viromics/​viral_contigs.fasta
  • results/​bio-viromics/​checkv_results/
  • results/​bio-viromics/​vcontact3_results/
  • results/​bio-viromics/​viral_taxonomy.tsv
  • results/​bio-viromics/​genome_clusters.tsv
  • results/​bio-viromics/​viromics_report.md
  • results/​bio-viromics/​logs/

Steps

  1. Run virus detection (geNomad).
  2. Run CheckV for completeness/​contamination.
  3. Assign taxonomy and cluster genomes (vConTACT3 for hierarchical classification and gene-sharing network analysis).

QC gates

  • CheckV quality thresholds meet project standards.
  • Contamination flags are below thresholds.
  • On failure: retry with alternative parameters; if still failing, record in report and exit non-zero.

Validation

  • Verify contigs.fasta is non-empty.
  • Verify viral reference DBs exist under the reference root.

Tools

  • genomad v1.11.2
  • checkv v1.0.3
  • vcontact3 v3.0.1
  • gvclass v1.2.0 (internal build tag)

Paper summaries (2023-2025)

  • summaries/ (include example use cases and tool settings used)

Tool documentation

  • geNomad - Viral sequence identification and classification
  • CheckV - Viral genome quality assessment
  • vConTACT3 - Viral taxonomy and clustering via gene-sharing networks
  • GVClass - Giant virus classification

References

  • See ../​bio-skills-references.md

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