Notes: Component of the ESCRT-I complex, involved in autophagosome closure
PN references (titles):
A helical assembly of human ESCRT-I scaffolds reverse-topology membrane scission | Nature Structural & Molecular Biology
PN-node mapping records (path + ancestors):
[type] Autophagy-Lysosome Pathway|Autophagosome closure maturation and lysosome fusion|Sealing of autophagophore membrane|ESCRT-I complex component
status=mapped scope=ok_for_propagation_to_go GO=[GO:0000813 ESCRT I complex]
rationale: This leaf is restricted to ESCRT-I components used in autophagophore sealing. The shared GO assertion is ESCRT I complex membership.
[group] Autophagy-Lysosome Pathway|Autophagosome closure maturation and lysosome fusion|Sealing of autophagophore membrane
status=mapped scope=ok_for_propagation_to_go GO=[GO:0000045 autophagosome assembly]
rationale: This group captures autophagophore closure/sealing, a late step in autophagosome assembly. Autophagosome assembly is the safer process target than autophagosome-lysosome fusion.
[class] Autophagy-Lysosome Pathway|Autophagosome closure maturation and lysosome fusion
status=context_only scope=too_broad_to_propagate GO=[GO:0016236 macroautophagy]
rationale: This class is a late macroautophagy context, but the subtree mixes docking, fusion, localization, membrane-composition, and unknown late-stage roles. The class-level relation is useful for display while propagation is restricted to narrower mechanism nodes.
[branch] Autophagy-Lysosome Pathway
status=no_mapping scope= GO=[]
rationale: Reviewed as the top-level PN branch. It is a project taxonomy umbrella rather than a direct GO assertion; all propagation must come from manually curated child nodes.
PN row 2: Ubiquitin Proteasome System | Ubiquitin and UBL binding | trafficking | ESCRT-I complex | UBA (UBAP1)
UniProt: Q9NZ09
In branches: ALP, UPS
Signature domains: IPR049467, IPR015940
Auxiliary domains: (none)
PN-node mapping records (path + ancestors):
[subtype] Ubiquitin Proteasome System|Ubiquitin and UBL binding|trafficking|ESCRT-I complex|UBA (UBAP1)
status=no_mapping scope= GO=[]
rationale: Reviewed manually as a UPS source node. No single GO term is appropriate for direct propagation from this PN label without narrower context or gene-level evidence.
[type] Ubiquitin Proteasome System|Ubiquitin and UBL binding|trafficking|ESCRT-I complex
status=no_mapping scope= GO=[]
rationale: Reviewed as a UPS taxonomy container. Its descendants mix catalytic roles, complex membership, binding domains, regulators, adaptors, and substrate-context labels, so a single propagating GO assertion would overstate the shared biology.
[group] Ubiquitin Proteasome System|Ubiquitin and UBL binding|trafficking
status=no_mapping scope= GO=[]
rationale: Reviewed as a UPS taxonomy container. Its descendants mix catalytic roles, complex membership, binding domains, regulators, adaptors, and substrate-context labels, so a single propagating GO assertion would overstate the shared biology.
[class] Ubiquitin Proteasome System|Ubiquitin and UBL binding
status=context_only scope=too_broad_to_propagate GO=[GO:0140036 ubiquitin-modified protein reader activity]
rationale: This class records ubiquitin/UBL-reader context, but the subtree mixes ubiquitin, SUMO, UBL-domain, domain-architecture, catalytic, signaling, trafficking, and nucleic-acid process buckets. It is useful context, not a safe direct propagation.
[branch] Ubiquitin Proteasome System
status=no_mapping scope= GO=[]
rationale: Reviewed as the top-level UPS branch. It is a project taxonomy umbrella rather than a direct GO assertion; UPS propagation must come from manually curated child nodes.
Projected GO annotations (2)
GO:0000045 autophagosome assembly | scope=ok_for_propagation_to_go | goa_status=new_to_goa | from=Autophagy-Lysosome Pathway|Autophagosome closure maturation and lysosome fusion|Sealing of autophagophore membrane
GO:0000813 ESCRT I complex | scope=ok_for_propagation_to_go | goa_status=already_in_goa_exact | from=Autophagy-Lysosome Pathway|Autophagosome closure maturation and lysosome fusion|Sealing of autophagophore membrane|ESCRT-I complex component