Miwa Sugiura

Differential effects of the D1/S264V mutation in Photosystem II with either PsbA1 or PsbA3 on QB, non-heme Iron, and the associated hydrogen-bond network

This study examines how the D1/S264V mutation affects electron transfer and iron states in Photosystem II with different PsbA variants, revealing significant functional differences.

Kinetics of reformation of an S0 state capable of progressing to an S1 state after the O2 release by Photosystem II.

The paper investigates the kinetics of S0 state reformation in PSII after O2 release, finding similar kinetics to the S3TyrZ* to S0TyrZ transition, suggesting no delay for substrate water insertion.

Investigation of electrochromic band-shifts in the Soret region induced by the formation of TyrD*, TyrZ*, and QA*- in Photosystem II

The paper investigates the effects of TyrD*, TyrZ*, and QA*- radical formation on the Soret region absorption spectra in Photosystem II from multiple species and mutants, identifying PD1 as the blue-shifted species and suggesting other pigments may contribute to shifts from TyrD* and TyrZ*.

New insights into the involvement of residue D1/V185 in Photosystem II function in Synechocystis 6803 and Thermosynechococcus vestitus.

This study investigates the effects of D1-V185T and D1-V185N mutations on PSII function in Synechocystis 6803 and Thermosynechococcus vestitus using EPR and optical kinetics, revealing altered proton transfer dynamics and water binding.