Macromolecular conformational changes in photosystem II: interaction between structure and function.

ABSTRACT: Conformational changes play an important role in the functioning of proteins and their complexes. This is also true for the pigment-protein super-complex of photosystem II (PSII). The data testify about the pH-induced macromolecular conformational changes in the water-oxidizing complex (WOC) on the donor side of PSII, the interaction between the spatial structure of WOC proteins and the distribution of cytochrome b559 redox-forms, and the electron transfer efficiency between Q_A and Q_B on the acceptor side of PSII. Changes in the protein environment near Q_A and Q_B can be observed after the removal of the bicarbonate ion associated with non-heme Fe or after the addition of herbicides binding to the Q_B site, which results in the su

SUBMITTER: Terentyev VV 

PROVIDER: S-EPMC9481831 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature