# phycobilins

> open chain tetrapyrroles

**Wikidata**: [Q412631](https://www.wikidata.org/wiki/Q412631)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Phycobilin)  
**Source**: https://4ort.xyz/entity/phycobilins


## References

1. Freebase Data Dumps. 2013
2. UMLS 2023