# vitelline envelope

> glycoprotein-based structure that lies outside the plasma membrane and surrounds the egg before fertilization

**Wikidata**: [Q22328101](https://www.wikidata.org/wiki/Q22328101)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Vitelline_membrane)  
**Source**: https://4ort.xyz/entity/vitelline-envelope


## References

1. Gene Ontology release 2019-10-07
2. [Source](http://www.bartleby.com/107/5.html)
3. Uberon
4. UMLS 2023
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)