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geneontology / go-ontology

Source ontology files for the Gene Ontology
http://geneontology.org/page/download-ontology
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Parentage of chromatin vs nucleolar chromatin #26175

Closed hattrill closed 1 week ago

hattrill commented 9 months ago

nucleolar chromatin GO:0030874 is classed as part_of chromatin GO:0000785

but should be an is_a

Screenshot 2023-09-26 at 16 38 32

Also chromatin is_a protein-DNA complex

whereas nucleolar chromatin is_a cellular anatomical entity

Not sure which one is correct, I think I would lean to chromatin being a cellular anatomical entity as it is not a discrete unit.

pgaudet commented 9 months ago

I think I would lean to chromatin being a cellular anatomical entity as it is not a discrete unit.

Anyone has a strong feeling about this? That affects whether we can annotate occurs_in, or not

ValWood commented 9 months ago

I assume we can only use occurs_at with cellular anotomical entities? I would say "cellular anotomical entitiy" rather than protein DNA complex (which actually sounds quite strange)

hattrill commented 9 months ago

Looks like it. With the transcription guidelines, I believe the rules say to annotate as occurs in chromatin.