FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term omegasome ID (Ontology) GO:1990462 (Gene Ontology)
Definition Omega-shaped (as in the Greek capital letter) intracellular membrane-bounded organelle enriched in phosphatidylinositol 3-phosphate and dynamically connected to the endoplasmic reticulum. Omegasomes are the first step of the formation of autophagosomes via the phagophore assembly sites.[ PubMed:18725538 PubMed:24591649 ]
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Data ClassFieldDirect annotations
Genes (FBgn)GO_CELLULAR_COMPONENT
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 Alleles Genes Constructs
 omegasome (all annotations which use CV term, excluding "NOT" statements)       --
      --
     located_in | omegasome       --
      --
     omegasome | adult stage | decreased number
      --
     omegasome | adult stage | increased number
      --
     omegasome | early third instar larval stage
      --
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membrane-bounded organelle
 |__intracellular membrane-bounded organelle__
intracellular organelle                       |
 |__intracellular membrane-bounded organelle__|
cellular anatomical structure                 |
 |__endomembrane system_______________________|
                                              omegasome  2 rec.
                                               |__omegasome membrane 1 rec.
                                                   |__extrinsic component of omegasome membrane 1 rec.
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Is a intracellular membrane-bounded organelle
Part of endomembrane system
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