---
id: "cell_ontology_id"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["science"]
langs: ["common"]
quality: 85
url: "http://registry.apicrafter.io/datatype/cell_ontology_id"
---

# Cell Ontology (CL) term ID (`cell_ontology_id`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Identifier of a cell type in the Cell Ontology, a structured vocabulary of cell types from prokaryotes to mammals, plants and fungi. It is CL: and seven digits; OBO PURLs and Wikidata write CL_ instead.

- Personal data (PII): no
- Categories: Scientific (science)
- Countries: global
- Languages: Common to most languages (common)
- Classification: categorical

## Detection

Regular expression (Python `re`):

```
^CL[:_]\d{7}$
```

## Examples

- `CL:0000236` — B cell
- `CL:0000062` — osteoblast; Bioregistry example
- `CL_0000236` — B cell, underscore form
- `CL:236` (invalid example) — Not padded to seven digits

## Mappings

- bioregistry: `cl`
- wikidata: `P7963`

## Sources

- doc: <https://obophenotype.github.io/cell-ontology/>
- other: <https://bioregistry.io/registry/cl>
- wikidata: <https://www.wikidata.org/wiki/Property:P7963>

## Quality

Score 85/100. Missing: translation, detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/cell_ontology_id.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/science/cell_ontology_id.yaml>