FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

endoplasmic reticulum lumen

ID (Ontology)

GO:0005788 (Gene Ontology)

Definition

The volume enclosed by the membranes of the endoplasmic reticulum.[ ISBN:0198547684 ]

Also Known As

"cisternal lumen" ; "endoplasmic reticulum cisterna" ; "ER cisterna" (for all, see Synonyms field below)

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

Results list data from multiple species. Choose a record type above to open its HitList.

Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_CELLULAR_COMPONENT

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Alleles	Gene Groups	Genes	Constructs
endoplasmic reticulum lumen (all annotations which use CV term, excluding "NOT" statements)	--			--
endoplasmic reticulum lumen \| decreased number \| larval stage		--	--
endoplasmic reticulum lumen \| increased number \| larval stage		--	--	--
endoplasmic reticulum lumen \| larval stage		--	--
is_active_in \| endoplasmic reticulum lumen	--	--		--
located_in \| endoplasmic reticulum lumen	--	--		--

Spanning Tree (Parents/Children)

cytoplasm
 |__endoplasmic reticulum_________________
endomembrane system                       |
 |__endoplasmic reticulum_________________|
intracellular organelle                   |
 |__intracellular organelle lumen_________|
intracellular membrane-bounded organelle  |
 |__endoplasmic reticulum_________________|
organelle lumen                           |
 |__intracellular organelle lumen_________|
                                          endoplasmic reticulum lumen  24 rec.
                                           |__cortical endoplasmic reticulum lumen
                                           |__luminal surveillance complex
                                           |__mannosyl-oligosaccharide 1,2-alpha-mannosidase complex
                                           |__perinuclear endoplasmic reticulum lumen
                                           |__rough endoplasmic reticulum lumen
                                           |__sarcoplasmic reticulum lumen
                                           |   |__longitudinal sarcoplasmic reticulum lumen
                                           |   |__terminal cisterna lumen
                                           |__smooth endoplasmic reticulum lumen

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	intracellular organelle lumen
Part of	endoplasmic reticulum
Synonyms & Secondary IDs
Synonyms
	"cisternal lumen" EXACT "endoplasmic reticulum cisterna" EXACT "ER cisterna" EXACT "ER lumen" EXACT
Secondary IDs

External Crossreferences & Linkouts