How does photosystem 2 split water? The structural basis of efficient energy conversion.

Groningen How does photosystem 2 split water ? The structural basis of efficient energy conversion

Photosystem II and terminal respiratory oxidases: molecular machines operating in opposite directions.

In the thylakoid membrane of green plants, cyanobacteria and algae, photosystem II (PSII) uses light energy to split water and generate molecular oxygen. In the opposite process of the biochemical transformation of dioxygen, in heterotrophs, the terminal respiratory oxidases (TRO) are at the end of the respiratory chain in mitochondria and in plasma membrane of many aerobic bacteria reducing di...

Photosystem II: a multisubunit membrane protein that oxidises water.

A structure of photosystem II recently determined by X-ray crystallography at 3.8 A resolution complements structural studies using high-resolution electron microscopy and represents a major step towards understanding how photosynthetic organisms use light energy to oxidise water.

Multiple types of association of photosystem II and its light-harvesting antenna in partially solubilized photosystem II membranes.

Photosystem II is a multisubunit pigment-protein complex embedded in the thylakoid membranes of chloroplasts. It utilizes light for photochemical energy conversion, and is heavily involved in the regulation of the energy flow. We investigated the structural organization of photosystem II and its associated light-harvesting antenna by electron microscopy, multivariate statistical analysis, and c...

A role for PsbZ in the core complex of photosystem II.

Photosynthesis in oxygen-evolving organisms is driven by electron transport through the photochemical reaction centers photosystem I (PSI) and photosystem II (PSII), two large protein complexes located in the chloroplast thylakoid membrane. PSI and PSII each contain an array of light-harvesting antenna pigments that absorb light energy and transfer it to a reaction center core complex, where el...