# nuclear speck

> discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy

**Wikidata**: [Q14819271](https://www.wikidata.org/wiki/Q14819271)  
**Source**: https://4ort.xyz/entity/nuclear-speck


## References

1. Gene Ontology release 2019-10-07
2. Foundational Model of Anatomy
3. UMLS 2023