# Mass Spectrometry Ontology (MS)

> A structured controlled vocabulary for the annotation of experiments concerned with proteomics...

- Page: https://library.schematica.io/model/8470a18424e04f4e886fe32410af0028
- Model type: Ontology
- License: CC BY 4.0
- Access type: Free
- Access method: Download
- Model size: Mid
- Formats: OBO
- Domains: Healthcare
- External link: https://bioportal.bioontology.org/ontologies/MS
- Contact: Gerhard Mayer (gerhard.mayer@rub.de)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | MS |
| Description | A structured controlled vocabulary for the annotation of experiments concerned with proteomics mass spectrometry. Developed by the HUPO Proteomics Standards Initiative (PSI). |
| Format | OBO |
| Categories | Protein, Experimental Conditions |
| Groups | OBO Foundry, Proteomics Standards Initiative |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 3,642 |
| Individuals | 0 |
| Properties | 12 |
| Max Depth | 7 |
| Max Child Count | 181 |
| Average Child Count | 7 |
| Classes With One Child | 101 |
| Classes With More Than 25 Children | 21 |
| Classes With No Definition | 38 |

## Projects using MS

- [ISA software suite](https://bioportal.bioontology.org/projects/ISS)
- [Maggot](https://bioportal.bioontology.org/projects/Maggot)
- [MeRy-B](https://bioportal.bioontology.org/projects/MeRy-B)
- [Reporting MS-based Proteomics and Metabolomics Results](https://bioportal.bioontology.org/projects/mzTab)
- [Reporting Identifications in MS-based Proteomics Experiments](https://bioportal.bioontology.org/projects/mzIdentML)

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Source: https://library.schematica.io/model/8470a18424e04f4e886fe32410af0028