Author

Ranel Maqdisi

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Open access Sep 2026

Photosystem I structural fusion with IsiA enhances light-harvesting capabilities of filamentous cyanobacterium during iron deficiency

SUMMARY During iron stress, cyanobacteria produce iron-stress-inducible protein A (IsiA), which associates with photosystem I (PSI) to support cell growth. In most cyanobacteria, the stress induces formation of large IsiA18-PSI3 complexes. However, some species, including Anabaena sp. PCC 7120, studied in this work, fo...

S. Biswas, D. Niedzwiedzki, Kuo-En Chen et al. · Cell Reports Physical Scienc... · 0 citations

Open access Aug 2026

Antenna photosystem I remodeling in the iron stress–induced complex from Anabaena sp. PCC 7120

The structure and oligomeric states of the photosystem I–iron stress–induced protein A (PSI-IsiA) supercomplex from several species have been investigated using cryo–electron microscopy (cryo-EM) and atomic force microscopy. The cryo-EM structure of the PSI-IsiA complex from cyanobacterium Anabaena sp. PCC 7120 (7120)...

Ranel Maqdisi, D. Niedzwiedzki, Christopher A. Gorski et al. · Science Advances · 0 citations