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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GEXO

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Gene Expression Ontology

KGXBioPortal ontologyv2015
Visibility: Public

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

Graph at a glance

166,291
Nodes
175,296
Edges
2015
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
GEXO.tar.gz
166K nodes · 175K 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 GEXO_nodes.tsv and GEXO_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 6 categories across 166,291 nodes

NamedThing88,263
Activity59,345
BiologicalProcessOrActivity11,060
Attribute3,939
CellularComponent2,394
MacromolecularComplex1,666

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 78,028 of 166,291 nodes (46.9%)

4is a seed term whose Biolink class is not in doubt
14,740inherits from a seed term above it in the hierarchy
63,284inherits from a root class placed by review

63,284 of these nodes inherit a category from 3 root classes reviewed by Claude (model version not recorded), in a Claude Code session with the maintainer; shipped in on 2026-08-26. Not yet confirmed by a maintainer. These root classes were placed by reading them and their subclasses in the published graph, with the assistance of an AI agent. The reading, the evidence, and the refusals are recorded in reviewed_roots.yaml. See how categories are assigned.

Biolink categories 1 category across 175,296 edges

Association175,296

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