Event Ontology Release Notes
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Version: 1.70 (28th Apr, 2010)

Event Ontology is an ontology that organizes the concepts and terms of pathway objects such as sub-pathways, biological processes and experimental environments appearing in the cellular pathway (e.g. signal transductions, disease pathways, metabolic pathways, etc.) The concepts in the Event Ontology were manually extracted from scientific articles and text books. Each concept has a link to Gene Ontology if possible.

Changes from version 1.62
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1. add the terms related to IGF signaling pathway, EGF signaling pathway, FGF signaling pathway, insulin signaling pathway, Hedgehog signaling pathway and metabolic pathway.
2. add the location where events take place to the terms for "moleculer interaction".
3. add three new relationship types --regulates, negatively_regulates and positively_regulates.
4. remove the terms for the annotation of events whose biological process is unknown.
5. etc.

More information about Event Ontology
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Tatsuya Kushida, Toshihisa Takagi and Ken Ichiro Fukuda, Event Ontology: A Pathway-Centric Ontology for Biological Processes. Pacific Symposium on Biocomputing 11:152-163(2006). 

Statistics
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All entries 3756
Obsoletes 149 
definition 653

GO IDs 516
KEGG PATHWAY IDs 825
Reactome IDs 110
PSI-MI IDs 70
