Prototype KG‑aware adaptation of the BioPortal interface. Graph pages generated from live KG‑Registry metadata; tool links go to the live BioPortal.
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PCL

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Provisional Cell Ontology

KGXBioPortal ontologyv2025-07-07CC BY 4.0
Visibility: Public

A KGX transformation of the BioPortal ontology Provisional Cell Ontology (PCL), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them.

Graph at a glance

54,685
Nodes
134,749
Edges
2025-07-07
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
PCL.tar.gz
55K nodes · 135K edges
Base graph is the full graph

This ontology declares no imports, so its base graph already is its full graph; nothing separate was built.

The graph contains PCL_nodes.tsv and PCL_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 18 categories across 54,685 nodes

NamedThing32,353
Cell8,729
BiologicalProcessOrActivity5,067
Gene4,768
AnatomicalEntity2,443
MolecularEntity526
Protein262
CellularComponent225
Attribute114
ChemicalEntity74
OrganismTaxon59
MacromolecularComplex39
LifeStage11
InformationContentEntity6
NucleicAcidEntity4
PhysicalEntity2
Polypeptide2
Activity1

An item carrying more than one category is counted under each, so these counts can add up to more than the total.

How they were assigned 22,332 of 54,685 nodes (40.8%)

20is a seed term whose Biolink class is not in doubt
22,312inherits from a seed term above it in the hierarchy

Biolink categories 1 category across 134,749 edges

Association134,749

An item carrying more than one category is counted under each, so these counts can add up to more than the total.