Evidence map›Paper›PMID 41819263›Full record

ArticleThe Journal of biological chemistry2026

Structural interactions of TLP18.3 and Psb27-H1 to the luminal CP43 and rubredoxin-ENH1 to the stromal side of photosystem II in higher plants.

Haijun Liu, Youngwoo Lee

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Haijun LiuDepartment of Biology, Saint Louis University, St Louis, Missouri, USA. Electronic address: haijun.liu@slu.edu.
Youngwoo LeeDepartment of Biology, Saint Louis University, St Louis, Missouri, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thylakoid lumen protein 18.3 and Psb27 are known proteins on the luminal side of photosystem II (PSII). The structural locations of these two proteins are still absent in the currently available higher plant PSII cryogenic electron microscopy structures. We interrogated the structural locations of these proteins using chemical cross-linking followed by LC-MS/MS analysis. Structural mass spectrometry results then provided chemical restrains to direct structural modeling to determine the collective binding/stabilization of these two proteins to the luminal PSII CP43 protein. Using this pipeline, we also found the structural location of a rubredoxin protein on the stromal side of PSII. Discovery of this redox active iron-sulfur protein in the vicinity of PSII subunit D1/D2 proteins greatly showcases the importance of the redox processes that are potentially involved in PSII assembly or less known steady-state functionality or photoprotection. This structural mass spectrometry platform highlights its powerful applicability in protein complex discovery.

Indexed as

Photosystem II Protein ComplexRubredoxinsModels, MolecularTandem Mass SpectrometryThylakoidsPhotosystem II Protein ComplexRubredoxinscross-linking mass spectrometry (XL-MS)photoprotectionphotosystem II assemblyPsb27Psb32PSII assemblyredox regulationrubredoxinsTLP18.3

Identifiers

PMID41819263
PMCPMC13089150

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.