| URI* | 
http://purl.obolibrary.org/obo/cl.owl 
http://purl.obolibrary.org/obo/cl.owl
 | 
| Alternative name | 
Cell type ontology
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 | 
| Bug database | 
https://github.com/obophenotype/cell-ontology/issues 
https://github.com/obophenotype/cell-ontology/issues
 | 
| Contact* | Alex Diehl (addiehl@buffalo.edu) | 
| Object creation date property | 
http://purl.org/dc/elements/1.1/created 
http://purl.org/dc/elements/1.1/created
 | 
| Submission date | October 16, 2025 | 
| Deprecated | 
false
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 | 
| Description* | 
An ontology of cell types.
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 | 
| Documentation | 
https://obophenotype.github.io/cell-ontology/ 
https://obophenotype.github.io/cell-ontology/
 | 
| Endorsed by | |
| Example of resource | 
http://purl.obolibrary.org/obo/CL_0000000
See more...
 | 
| Contributor | |
| Creator | |
| Subject | 
http://aims.fao.org/aos/agrovoc/c_330944
See more...
 
http://aims.fao.org/aos/agrovoc/c_4891
See more...
 
http://aims.fao.org/aos/agrovoc/c_49890
See more...
 
http://aims.fao.org/aos/agrovoc/c_6259
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http://aims.fao.org/aos/agrovoc/c_2091
See more...
 | 
| Formality level | 
http://w3id.org/nkos/nkostype#ontology 
http://w3id.org/nkos/nkostype#ontology
 | 
| License | |
| Representation language* | 
OWL
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 | 
| Syntax | 
http://www.w3.org/ns/formats/RDF_XML 
http://www.w3.org/ns/formats/RDF_XML
 | 
| Prior version | |
| Homepage | 
https://cell-ontology.github.io/ 
https://cell-ontology.github.io/
 | 
| Other identifier | 
http://doi.org/10.5281/zenodo.168254 
http://doi.org/10.5281/zenodo.168254
 | 
| Indexed or included in catalog or repository | 
http://aber-owl.net/ontology/CL 
http://aber-owl.net/ontology/CL
 
http://www.ebi.ac.uk/ols/ontologies/cl 
http://www.ebi.ac.uk/ols/ontologies/cl
 
http://www.obofoundry.org/ontology/cl.html 
http://www.obofoundry.org/ontology/cl.html
 
http://www.ontobee.org/ontology/cl 
http://www.ontobee.org/ontology/cl
 
https://agroportal.lirmm.fr/ 
agroportal.lirmm.fr
 
https://bioportal.bioontology.org/ontologies/CL 
https://bioportal.bioontology.org/ontologies/CL
 
https://biosharing.org/bsg-s000009 
https://biosharing.org/bsg-s000009
 
https://lod-cloud.net/dataset/bioportal-cl 
https://lod-cloud.net/dataset/bioportal-cl
 
https://vest.agrisemantics.org/content/cell-ontology 
https://vest.agrisemantics.org/content/cell-ontology
 | 
| Is format of | 
http://purl.obolibrary.org/obo/cl.obo 
http://purl.obolibrary.org/obo/cl.obo
 | 
| Generic type | 
http://omv.ontoware.org/2005/05/ontology#DomainOntology 
http://omv.ontoware.org/2005/05/ontology#DomainOntology
 | 
| Keywords | 
pathways and networks
See more...
 | 
| Known usage | 
One of the main uses of the CL is to describe samples used in transcriptomic and functional genomics studies, such as FANTOM5, ENCODE and LINCS.
See more...
 | 
| Logo | 
http://obofoundry.org/images/CL-logo.jpg 
http://obofoundry.org/images/CL-logo.jpg
 | 
| Object modification date property | 
http://purl.org/dc/elements/1.1/modified 
http://purl.org/dc/elements/1.1/modified
 | 
| Natural language | |
| Notes | 
See PMID:15693950, PMID:12799354, PMID:20123131, PMID:21208450; Contact Alexander Diehl, addiehl@buffalo.edu, University at Buffalo.
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See PMID:15693950, PMID:12799354, PMID:20123131, PMID:21208450; Contact Alexander Diehl, addiehl@buffalo.edu, university at buffalo.
See more...
 
See PMID:15693950, PMID:12799354, PMID:20123131, PMID:21208450; Contact Alexander Diehl, addiehl[at]buffalo.edu, university at buffalo.
See more...
 | 
| Root of obsolete branch | 
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass 
http://www.geneontology.org/formats/oboInOwl#ObsoleteClass
 | 
| Preferred namespace prefix | 
cl
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 | 
| Preferred namespace URI | 
http://purl.obolibrary.org/obo/CL_ 
http://purl.obolibrary.org/obo/CL_
 | 
| Access URL | 
http://purl.obolibrary.org/obo/cl.owl 
http://purl.obolibrary.org/obo/cl.owl
 | 
| Creation date* | October 16, 2025 | 
| Repository | 
https://github.com/obophenotype/cell-ontology 
https://github.com/obophenotype/cell-ontology
 | 
| Status* | 
production
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 | 
| URI Lookup Endpoint | 
http://agroportal.lirmm.fr/search?ontologies=CL&require_exact_match=true&q= 
search?ontologies=CL&require_exact_match=true&q=
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| Identifier pattern | 
http://purl.obolibrary.org/obo/CL_[0-9]{7}
See more...
 | 
| Created with | 
OWL API
See more...
 | 
| Version information | 
2025-10-16
See more...
 | 
| Version IRI | 
http://purl.obolibrary.org/obo/cl/releases/2025-10-16/cl.owl 
http://purl.obolibrary.org/obo/cl/releases/2025-10-16/cl.owl
 | 
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