A KGX transformation of the BioPortal ontology Human Reference Atlas (HRA), produced by KG‑Bioportal. Nodes are ontology classes; edges are the relations between them.
Graph at a glance
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This ontology declares no imports, so its base graph already is its full graph; nothing separate was built.
The graph contains HRA_nodes.tsv and HRA_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.
Biolink categories 5 categories across 190,296 nodes
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 11,463 of 190,296 nodes (6.0%)
6,327 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 422,256 edges
An item carrying more than one category is counted under each, so these counts can add up to more than the total.