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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HO

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Histological Ontology

KGXBioPortal ontologyv1.1
Visibility: Public

A KGX transformation of the BioPortal ontology Histological Ontology (HO), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them. The base graph is the ontology on its own, imports stripped; the full graph, where built, has the import closure merged in.

Base graph at a glance

60
Nodes
40
Edges
1.1
Version
2026-09-14
Transformed

Products & downloads

Base
KGX base graph (imports stripped)
HO.tar.gz
60 nodes · 40 edges
Full
KGX full graph (imports merged in)
HO_full.tar.gz
270 nodes · 311 edges

The base graph contains HO_nodes.tsv and HO_edges.tsv. The full graph contains HO_full_nodes.tsv and HO_full_edges.tsv: this ontology plus the 2 it imports (and their imports in turn), merged by ROBOT. Use it when the imported terms matter; the base graph merges more cleanly with other graphs. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Imports 2

What this ontology pulls in through owl:imports. An import that is itself a BioPortal ontology links to its page here; a module of one links to the ontology it belongs to; anything else links out, or is named by its namespace when it is not a web address. The base graph leaves all of these out; the full graph, where built, has them merged in.

Biolink categories 1 category across 60 nodes

NamedThing60

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

Biolink categories 1 category across 40 edges

Association40

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