8b4n
From Proteopedia
X-ray structure of phycoerythrin from Porphyridium cruentum
Structural highlights
FunctionPHEA_PORPP Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Publication Abstract from PubMedHere, an unprecedented biorefinery approach has been designed to recover high-added value bioproducts starting from the culture ofPorphyridium cruentum. This unicellular marine red alga can secrete and accumulate high-value compounds that can find applications in a wide variety of industrial fields. 300 +/- 67 mg/L of exopolysaccharides were obtained from cell culture medium; phycoerythrin was efficiently extracted (40% of total extract) and isolated by single chromatography, with a purity grade that allowed the crystal structure determination at 1.60 A; a twofold increase in beta-carotene yield was obtained from the residual biomass; the final residual biomass was found to be enriched in saturated fatty acids. Thus, for the first time, a complete exploitation ofP. cruentumculture was set up. Inside out Porphyridium cruentum: Beyond the Conventional Biorefinery Concept.,Liberti D, Imbimbo P, Giustino E, D'Elia L, Ferraro G, Casillo A, Illiano A, Pinto G, Di Meo MC, Alvarez-Rivera G, Corsaro MM, Amoresano A, Zarrelli A, Ibanez E, Merlino A, Monti DM ACS Sustain Chem Eng. 2023 Jan 9;11(1):381-389. doi: , 10.1021/acssuschemeng.2c05869. Epub 2022 Nov 29. PMID:36643001[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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