Phycocyanobilin

Phycocyanobilin

Identifiers
PubChem	5288007
Properties
Chemical formula	C33H40N4O6
Molar mass	588.69 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Phycocyanobilin is a blue phycobilin, i.e., a tetrapyrrole chromophore found in cyanobacteria and in the chloroplasts of red algae, glaucophytes, and some cryptomonads. Phycocyanobilin is present only in the phycobiliproteins allophycocyanin and phycocyanin, of which it is the terminal acceptor of energy. It is covalently linked to these phycobiliproteins by a thioether bond.

References

• Cole, W. J.; Chapman, David J.; Siegelman, Harold W. (1967). "Structure of phycocyanobilin". Journal of the American Chemical Society 89 (14): 3643–3645. doi:10.1021/ja00990a055. ISSN 0002-7863.