Phycoerythrobilin

Phycoerythrobilin
Identifiers
CAS Number	18097-67-1 ;
3D model (JSmol)	Interactive image;
ChemSpider	16741434 ;
MeSH	phycoerythrobilin
PubChem CID	6443764;
	InChI InChI=1S/C33H38N4O6/c1-7-20-19(6)32(42)37-27(20)14-25-18(5)23(10-12-31(40)41)29(35-25)15-28-22(9-11-30(38)39)17(4)24(34-28)13-26-16(3)21(8-2)33(43)36-26/h7-8,14-15,19,26,35H,2,9-13H2,1,3-6H3,(H,36,43)(H,37,42)(H,38,39)(H,40,41)/b20-7+,27-14-,28-15-/t19-,26-/m1/s1 Key: IGJXAXFFKKRFKU-NDGVYKEISA-N ;
	SMILES C/C=C/1\[C@H](C(=O)N\C1=C/c2c(c(c([nH]2)/C=C\3/C(=C(C(=N3)C[C@@H]4C(=C(C(=O)N4)C=C)C)C)CCC(=O)O)CCC(=O)O)C)C;
Properties
Chemical formula	C33H38N4O6
Molar mass	586.678 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

Phycoerythrobilin is a red phycobilin, i.e. an open tetrapyrrole chromophore found in cyanobacteria and in the chloroplasts of red algae, glaucophytes and some cryptomonads. Phycoerythrobilin is present in the phycobiliprotein phycoerythrin, of which it is the terminal acceptor of energy. The amount of phycoerythrobilin in phycoerythrins varies a lot, depending on the considered organism. In some Rhodophytes and oceanic cyanobacteria, phycoerythrobilin is also present in the phycocyanin, then termed R-Phycocyanin. Like all phycobilins, phycoerythrobilin is covalently linked to these phycobiliproteins by a thioether bond.

References

Chapman, David J.; Cole, W. J.; Siegelman, Harold W. (1967). "Structure of phycoerythrobilin". Journal of the American Chemical Society. 89 (23): 5976–5977. doi:10.1021/ja00999a058. ISSN 0002-7863.

External links

Chemical Structure of phycoerythrobilin

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