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Article

Trp521 oxidation affects FtsH2 stability and its role in PSII repair.

The New phytologist - 1 Sept 2026

Zhang Jingzhi, Lee Keun Pyo, Lou Yujie, Liu Yanling, Ling Qihua, Kim Chanhong

Abstract excerpt

Photosynthesis generates reactive oxygen species that damage photosynthetic machinery. Singlet oxygen (1O2) produced at photosystem II (PSII) damages PSII proteins, with D1 as a primary target due to its proximity to the site of 1O2 generation. During PSII repair, D1 is degraded by the FtsH metalloprotease complex, followed by resynthesis and PSII reassembly. Oxidation of a conserved tryptophan residue (Trp14) in...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 42289793
DOI: 10.1111/nph.71356
PMCID: PMC13443278

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026.

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