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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SDO

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Sleep Domain Ontology

KGXBioPortal ontologyvLast modification: Feb. 11, 2013 Sivaram Arabandi
Visibility: Public

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

Graph at a glance

1,678
Nodes
2,706
Edges
Last modification: Feb. 11, 2013 Sivaram Arabandi
Version
2026-09-14
Transformed

Products & downloads

KGX
KGX nodes & edges
SDO.tar.gz
2K nodes · 3K 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 SDO_nodes.tsv and SDO_edges.tsv. Releases are incremental, so each link points at whichever release most recently rebuilt this ontology.

Biolink categories 5 categories across 1,678 nodes

NamedThing1,017
InformationContentEntity260
PhysicalEntity234
Activity95
Attribute72

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 661 of 1,678 nodes (39.4%)

17is a seed term whose Biolink class is not in doubt
643inherits from a seed term above it in the hierarchy
1takes the category of a term it is mapped to by exact match

Biolink categories 1 category across 2,706 edges

Association2,706

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