geneontology / go-announcements

Announcements related to ontology changes that may impact groups using GO, such as obsoletions, merges, etc.
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Obsoletion notice: Children of GO:0019171 (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity #787

Closed pgaudet closed 1 week ago

pgaudet commented 1 week ago

Dear all,

The proposal has been made to obsolete GO:0047450 (3R)-3-hydroxybutanoyl-[acyl-carrier-protein] hydratase activity >> 1 EXP GO:0008693 (3R)-3-hydroxydecanoyl-[acyl-carrier-protein] dehydratase activity >> 2 EXP GO:0008659 (3R)-3-hydroxymyristoyl-[acyl-carrier-protein] dehydratase activity >> 0 EXP GO:0047451 (3R)-3-hydroxyoctanoyl-[acyl-carrier-protein] dehydratase activity >> 2 EXP GO:0004317 (3R)-3-hydroxypalmitoyl-[acyl-carrier-protein] dehydratase activity >> 0 EXP

& replace by parent GO:0019171 (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity. The reason for obsoletion is that these represent specific substrates of GO:0019171 (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity; the enzyme is not selective for the length of the chain (see comments in https://enzyme.expasy.org/EC/4.2.1.59):

Different forms of the enzyme may have preferences for substrates with different chain length. Despite the differences both forms can catalyze all steps leading to the synthesis of palmitate (C16:0).

Annotations are here: https://github.com/geneontology/go-annotation/issues/5307

Ticket is here: https://github.com/geneontology/go-ontology/issues/28163

Thanks, Pascale