The biogenesis and maintenance of PSII: recent advances and current challenges

J Komenda, R Sobotka, PJ Nixon - The Plant Cell, 2024‏ - academic.oup.com
The growth of plants, algae and cyanobacteria relies on the catalytic activity of the oxygen-
evolving photosystem two (PSII) complex which uses solar energy to extract electrons from …

[HTML][HTML] Stabilization of Photosystem II by the PsbT protein impacts photodamage, repair and biogenesis

RD Fagerlund, JA Forsman, S Biswas, I Vass… - … et Biophysica Acta (BBA …, 2020‏ - Elsevier
Abstract Photosystem II (PS II) catalyzes the light-driven process of water splitting in
oxygenic photosynthesis. Four core membrane-spanning proteins, including D1 that binds …

Lys264 of the D2 Protein Performs a Dual Role in Photosystem II Modifying Assembly and Electron Transfer through the Quinone–Iron Acceptor Complex

EP Khaing, JJ Eaton-Rye - Biochemistry, 2023‏ - ACS Publications
Bicarbonate (HCO3–) binding regulates electron flow between the primary (QA) and
secondary (QB) plastoquinone electron acceptors of Photosystem II (PS II). Lys264 of the D2 …

The D1:Ser268 residue of Photosystem II contributes to an alternative pathway for QB protonation in the absence of bound bicarbonate

JA Forsman, JJ Eaton‐Rye - FEBS letters, 2020‏ - Wiley Online Library
Photosystem II catalyses the splitting of water and the reduction in plastoquinone in
thylakoid membranes of all oxygenic photosynthetic organisms. The final step in quinol …

Tyr244 of the D2 protein is required for correct assembly and operation of the quinone-iron-bicarbonate acceptor complex of Photosystem II

EP Khaing, V Zhong, S Kodru, I Vass… - Biochemistry, 2022‏ - ACS Publications
Two plastoquinone electron acceptors, QA and QB, are present in Photosystem II (PS II) with
their binding sites formed by the D2 and D1 proteins, respectively. A hexacoordinate non …

Properties of Photosystem II lacking the PsbJ subunit

A Boussac, J Sellés, M Hamon, M Sugiura - Photosynthesis Research, 2022‏ - Springer
Photosystem II (PSII), the oxygen-evolving enzyme, consists of 17 trans-membrane and 3
extrinsic membrane proteins. Other subunits bind to PSII during assembly, like Psb27 …

[HTML][HTML] PsbX maintains efficient electron transport in Photosystem II and reduces susceptibility to high light in Synechocystis sp. PCC 6803

S Biswas, JJ Eaton-Rye - Biochimica et Biophysica Acta (BBA) …, 2022‏ - Elsevier
PsbX is a 4.1 kDa intrinsic Photosystem II (PS II) protein, found together with the low-
molecular-weight proteins, PsbY and PsbJ, in proximity to cytochrome b 559. The function of …

The PsbJ protein is required for photosystem II activity in centers lacking the PsbO and PsbV lumenal subunits

P Choo, JA Forsman, L Hui, EP Khaing… - Photosynthesis …, 2022‏ - Springer
Abstract Photosystem II (PS II) of oxygenic photosynthesis is found in the thylakoid
membranes of plastids and cyanobacteria. The mature PS II complex comprises a central …

[HTML][HTML] Arg24 and 26 of the D2 protein are important for photosystem II assembly and plastoquinol exchange in Synechocystis sp. PCC 6803

S Biswas, EP Khaing, V Zhong, JJ Eaton-Rye - Biochimica et Biophysica …, 2024‏ - Elsevier
Abstract Photosystem II (PS II) assembly is a stepwise process involving preassembly
complexes or modules focused around four core PS II proteins. The current model of PS II …

Indirect interactions involving the PsbM or PsbT subunits and the PsbO, PsbU and PsbV proteins stabilize assembly and activity of Photosystem II in Synechocystis sp …

F Arshad, JJ Eaton-Rye - Photosynthesis research, 2024‏ - Springer
The low-molecular-weight PsbM and PsbT proteins of Photosystem II (PS II) are both located
at the monomer-monomer interface of the mature PS II dimer. Since the extrinsic proteins are …