# nuclear envelope

> double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space)

**Wikidata**: [Q14865821](https://www.wikidata.org/wiki/Q14865821)  
**Source**: https://4ort.xyz/entity/nuclear-envelope


## References

1. Gene Ontology release 2019-10-07
2. UMLS 2023
3. Great Norwegian Encyclopedia