Molecular networking and chemical similarity

MolNetInvert

Create metadata-based molecular networks from GNPS networks or feature tables to explore how metabolites are distributed across sample groups.

LC-MSUntargeted metabolomicsDesktop graphical interfaceOpen source

Overview

MolNetInvert is a desktop GUI implementing Metadata-Based Molecular Networks (MBMN). It reorganizes processed metabolomics data around selected sample metadata and can simplify network views by collapsing clusters. Metadata connections describe sample-group associations; they are distinct from MS/MS similarity or ion-identity evidence.

What can this tool do?

Network visualization

Common uses

  • Compare metabolite distributions across biological conditions or sample groups.
  • Reorganize dense networks and singleton features around metadata.

Scientific fit

Primary function

Molecular networking and chemical similarity

Other functions

Visualization and reporting

Analysis types

Untargeted metabolomics

Data compatibility

Inputs

Feature or peak table, Sample metadata

Outputs

Human-readable report

Input formats

CSV or TSV, Other, GNPS GraphML with metadata; optional metadata preference TXT

Output formats

Other, XGMML network for visualization in Cytoscape

Scope and considerations

Designed for

  • Downstream exploration of processed MS metabolomics networks and feature tables.

Not designed for

  • Raw-file preprocessing or confirming compound identities from metadata connections.

Important requirements

  • GNPS GraphML with appropriate metadata, or a CSV feature table and tab-delimited sample-to-group metadata in the documented format.

Considerations

  • Missing or inconsistent sample metadata changes the resulting grouping.
  • Collapsing or filtering nodes can hide detail; retain the original network and record settings.
  • Input modes and compatibility were checked in v1.2 source; software execution was not tested.

Access and documentation

Repository includes an MIT license, Python source and a Windows executable (v1.2). Consult the user guide for setup and input conventions.

License: MIT

Evidence and review

Metadata checked against the official repository, user guide and tool preprint. Software execution was not tested.

Core publications

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

  1. Preprint · not peer reviewed Christiansen JV, Jarmusch SA, Vertot M, Andersen AJC. MolNetInvert: A Tool for Creating Metadata Based Molecular Networks and Their Applications in Large Microbial Datasets. ChemRxiv (2024), version 1. Preprint. doi:10.26434/chemrxiv-2024-q4dpr

    Direct tool preprint, not a peer-reviewed journal article; no separate peer-reviewed version was verified during this review.

Related tools

Entry history

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

  1. 2026-09-15 · Entry update

    Clarify MolNetInvert source-checking provenance

    View change · Entry at this revision
  2. 2026-09-12 · First committed entry

    Add MolNetInvert metadata-networking tool

    View change · Entry at this revision

Full GitHub history