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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IOBC

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Interlinking Ontology for Biological Concepts

KGXBioPortal ontologyvversion 1.6.0CC BY-NC 4.0
Visibility: Public

A KGX transformation of the BioPortal ontology Interlinking Ontology for Biological Concepts (IOBC), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them.

Graph at a glance

233,931
Nodes
462,434
Edges
version 1.6.0
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
IOBC.tar.gz
234K nodes · 462K 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 IOBC_nodes.tsv and IOBC_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 2 categories across 233,931 nodes

NamedThing221,148
ChemicalEntity12,783

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 12,783 of 233,931 nodes (5.5%)

12,783inherits from a root class placed by review

12,783 of these nodes inherit a category from 2 root classes reviewed by Claude Fable 5.1 (claude-fable-5-1), in a Claude Code session with the maintainer on 2026-09-10. 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 462,434 edges

Association462,434

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