Pathway and biological interpretation

LION/web

Web-based lipid ontology enrichment tool that connects lipid lists or rankings to chemical, biophysical, cellular and functional lipid properties.

Platform-independentLipidomicsWeb applicationFree web service

Overview

LION/web interprets lipidomics through enrichment of lipid ontology terms. These terms cover chemical and biophysical properties and biological associations, rather than only metabolic pathways. The service operates downstream of lipid identification and quantification.

What can this tool do?

Pathway enrichment

Common uses

  • Identify lipid properties enriched among changed species.
  • Interpret ranked quantitative lipidomics results.

Scientific fit

Primary function

Pathway and biological interpretation

Analysis types

Lipidomics

Data compatibility

Inputs

Compound list or annotations, Feature or peak table, Statistical results

Outputs

Statistical results, Human-readable report

Input formats

CSV or TSV, Lipid lists or rankings, depending on analysis mode

Output formats

Ontology enrichment results and interactive reports

Scope and considerations

Designed for

  • Ontology-based interpretation of annotated lipidomics data.

Not designed for

  • Raw MS processing or proving pathway activity from enrichment alone.

Important requirements

  • Recognized lipid names and correctly formatted input for the chosen mode.
  • The quantitative CSV mode requires condition and sample identifiers.

Considerations

  • Check which lipid names match the ontology before interpreting results.
  • The selected background, rankings and identification confidence affect enrichment.

Access and documentation

Free hosted service without an account requirement. The FAQ excludes confidential or proprietary uploads; review the current terms before submitting data.

Evidence and review

Official service documentation and dedicated tool citation reviewed on 2026-09-11. Included for downstream MS lipidomics interpretation. No user dataset was uploaded or enrichment analysis run.

Core publications

Resource papers, direct updates and tool-specific methods. Selection policy.

  1. Molenaar MR, Jeucken A, Wassenaar TA, et al. LION/web: a web-based ontology enrichment tool for lipidomic data analysis. GigaScience 8, giz061 (2019). doi:10.1093/gigascience/giz061

Related tools

Entry history

Changes to this catalogue entry, not the tool's software release history. Acceptance and editorial review are separate.

  1. 2026-09-11 · First committed entry

    Add lipid ontology and pathway interpretation tools

    View change · Entry at this revision

Full GitHub history