Eukaryote-specific assembly factor DEAP2 mediates an early step of photosystem II assembly in Arabidopsis.

ABSTRACT: The initial step of oxygenic photosynthesis is the thermodynamically challenging extraction of electrons from water and the release of molecular oxygen. This light-driven process, which is the basis for most life on Earth, is catalyzed by photosystem II (PSII) within the thylakoid membrane of photosynthetic organisms. The biogenesis of PSII requires a controlled step-wise assembly process of which the early steps are considered to be highly conserved between plants and their cyanobacterial progenitors. This assembly process involves auxiliary proteins, which are likewise conserved. In the present work, we used Arabidopsis (Arabidopsis thaliana) as a model to show that in plants, a eukaryote-exclusive assembly factor facilitates the early assembly step, during which the intrinsic antenna pr

SUBMITTER: Keller JM 

PROVIDER: S-EPMC10602607 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature