A protease-mediated mechanism regulates the cytochrome c6/plastocyanin switch in Synechocystis sp. PCC 6803 [Plant Biology]

After the Great Oxidation Event (GOE), iron availability was greatly decreased, and photosynthetic organisms evolved several alternative proteins and mechanisms. One of these proteins, plastocyanin, is a type I blue-copper protein that can replace cytochrome c6 as a soluble electron carrier between cytochrome b6f and photosystem I. In most cyanobacteria,...

Source: Proceedings of the National Academy of Sciences - January 25, 2021 Category: Science Authors: Raquel Garcia–Canas, Joaquin Giner–Lamia, Francisco J. Florencio, Luis Lopez–Maury Tags: Plant Biology Biological Sciences Source Type: research