A. Boussac

Contributions of PD1 and PD2 to the difference spectrum in the Soret region in Photosystem II

The paper investigates the contribution of PD1 and PD2 to the difference spectrum in the Soret region of PSII by analyzing mutants and comparing their spectra to wild-type strains.

Energetics and proton release in Photosystem II from Thermosynechococcus elongatus with a D1 protein encoded by either the psbA2 or psbA3 gene

This paper compares the energetics and proton release kinetics of Photosystem II in Thermosynechococcus elongatus using PsbA2 and PsbA3 D1 proteins, finding differences in PheD1 redox potential and proton release rates.

Absorption changes in Photosystem II in the Soret band region upon the formation of the chlorophyll cation radical +

The paper measures absorption changes in Photosystem II's Soret band region caused by the chlorophyll cation radical [PD1PD2]+, showing a 'W-shaped' signal dependent on TyrD and its H-bonding environment.

Impact of energy limitations on function and resilience in long-wavelength Photosystem II

This study compares the efficiency and resilience of different Photosystem II variants using Chl-a, Chl-d, and Chl-f, showing that Chl-d-PSII is more susceptible to photodamage while Chl-f-PSII is more resilient.

Probing the proton release by Photosystem II in the S1 to S2 high-spin transition

The paper investigates proton release kinetics during the S1 to S2 transition in PSII, finding one proton is released in the S1 to S2HS transition in PSII/Sr at pH 7.0.

Properties of Photosystem II lacking the PsbJ subunit

This paper characterizes a PSII variant lacking PsbJ, showing it has an active Mn4CaO5 cluster but altered electron transfer properties.

A novel Enterococcus faecalis heme transport regulator (FhtR) is a heme sensor in the gastrointestinal tract.

This paper identifies FhtR as a heme sensor in E. faecalis that regulates heme homeostasis by controlling an efflux pump and catalase expression in the gastrointestinal tract.