Golgi lumen

GO:0005796 · Membrane organelle · Subcellular region · Proposed

The volume enclosed by the membranes of any cisterna or subcompartment of the Golgi apparatus, including the cis- and trans-Golgi networks. [GO:0005796]

Synonyms: Golgi apparatus lumen; Golgi complex lumen

Part of: Golgi apparatus (GO:0005794)

Xrefs: uniprot.location:SL-0133 — Golgi apparatus lumen

UniProt location names: UniProt Consortium, CC BY 4.0. Reference label and route sources.

Taxonomic distribution

NCBITaxon:4932 Saccharomyces cerevisiae — COMMON: Saccharomyces cerevisiae Vrg4 is required for GDP-mannose transport across Golgi membranes into the Golgi lumen. [PMID:9395539]

Canonical examples

NCBITaxon:4932 Saccharomyces cerevisiae — Budding yeast whose Vrg4-dependent GDP-mannose transport supplies the Golgi lumen for mannosylation reactions. [PMID:9395539]

Functions

Golgi lumen glycosylation compartment — The Golgi lumen is the bounded volume inside Golgi cisternae and subcompartments where lumen-facing glycosylation reactions access nucleotide-sugar substrates imported across Golgi membranes.
- GO:0005796 GO:0005796 defines the Golgi lumen as the volume enclosed by membranes of Golgi cisternae and subcompartments.
- PMID:9395539 Dean, Zhang and Poster 1997 showed that VRG4 is required for GDP-mannose transport into the Golgi lumen of Saccharomyces cerevisiae.

Mechanism graphs

Golgi lumen topology (FUNCTION)

The Golgi lumen is an intracellular organelle lumen enclosed by Golgi membranes inside Golgi cisternae and Golgi subcompartments.

Subject	Predicate	Object	Evidence
Golgi lumen	is a	intracellular organelle lumen	`GO:0005796` QuickGO places GO:0005796 directly under intracellular organelle lumen. `GO:0070013` GO:0070013 identifies the broader intracellular organelle lumen class.
Golgi lumen	is part of	Golgi apparatus	`GO:0005796` GO defines the Golgi lumen by enclosure within the Golgi apparatus. `GO:0005794` GO:0005794 identifies the Golgi apparatus.
Golgi membrane	bounds	Golgi lumen	`GO:0005796` GO:0005796 defines the Golgi lumen as the volume enclosed by membranes of Golgi cisternae or subcompartments. `GO:0000139` GO:0000139 identifies the lipid bilayer around Golgi apparatus compartments.

Discussions

INTERPRETATION (RESOLVED): Represent Golgi membranes and their nucleotide-sugar transporters as lumen boundaries rather than Golgi lumen components. GO:0005796 denotes the bounded volume enclosed by Golgi membranes, whereas GO:0000139 denotes the enclosing lipid bilayers and Vrg4 is a membrane GDP-mannose transporter.

Evidence

GO:0005796 Gene Ontology cellular-component term for Golgi lumen.
GO:0070013 Gene Ontology cellular-component parent term for intracellular organelle lumen.
GO:0005794 Gene Ontology cellular-component term for the containing Golgi apparatus.
GO:0000139 Gene Ontology cellular-component term for Golgi membranes that bound Golgi cisternae and subcompartments.
uniprot.location:SL-0133 — Golgi apparatus lumen UniProt Subcellular Location entry SL-0133 maps Golgi apparatus lumen to GO:0005796 and lists Golgi complex lumen as an exact synonym.
PMID:9395539 Dean, Zhang and Poster 1997, The VRG4 gene is required for GDP-mannose transport into the lumen of the Golgi in the yeast, Saccharomyces cerevisiae, Journal of Biological Chemistry.

Curation history

2026-09-22T21:22:27Z codex · CREATED_RECORD — Scaffolded by scripts/new_record.py
2026-09-22T21:23:30Z codex · EXPANDED_RECORD — Added intracellular-organelle-lumen parentage, Golgi-apparatus parthood, GO/UniProt exact synonyms, UniProt SL-0133 xref, Saccharomyces scope, a Golgi-lumen glycosylation function, GO/UniProt/PubMed evidence, a nonmechanistic Golgi-lumen topology graph, and a resolved Golgi membrane boundary interpretation.
2026-09-22T21:37:33Z codex · ADDRESSED_PR_REVIEW — Addressed PR #1324 review issues #1325 and #1326 by making the Saccharomyces Golgi-lumen notes Vrg4-specific and removing unused GDPase lumen-domain evidence from the first-pass record.

Source: data/structures/membrane_organelle/golgi_lumen.yaml