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Updated: Mar 9, 2026

Isolation and Characterization of Intact Phycobilisome in Cyanobacteria
Published on: November 10, 2021
Functions of chromophore-containing domain in the large linker LCM- polypeptide of phycobilisome
I V Elanskaya1, I A Kononova1, E P Lukashev1
1Faculty of Biology, Moscow State University, Moscow, 119991, Russia.
Abstract:
In the large linker ArcE polypeptide of the phycobilisome (PBS) from the cyanobacterium Synechocystis sp. PCC 6803, the chromophore-containing 26-kDa domain was deleted with consequent disturbance of the main PBS functions. Phycobilisomes in mutant cells staying in contact with photosystem I cannot transfer energy to the photosystem II. Under the bright light conditions, the interaction of PBSs with the photoprotective orange carotenoid protein in the mutant was lost and the implementation of transition states 1 and 2 of the pigment apparatus was significantly reduced.
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