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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PCO

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Population and Community Ontology

KGXBioPortal ontologyv2013-10-03CC0 1.0
Visibility: Public

A KGX transformation of the BioPortal ontology Population and Community Ontology (PCO), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them.

Graph at a glance

558
Nodes
1,052
Edges
2013-10-03
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
PCO.tar.gz
558 nodes · 1K 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 PCO_nodes.tsv and PCO_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 7 categories across 558 nodes

NamedThing371
Attribute53
OrganismTaxon44
PhysicalEntity34
InformationContentEntity30
BiologicalProcessOrActivity17
Activity9

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 187 of 558 nodes (33.5%)

8is a seed term whose Biolink class is not in doubt
179inherits from a seed term above it in the hierarchy

Biolink categories 1 category across 1,052 edges

Association1,052

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