Jian‐Ren Shen
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View article: Structural insights into the divergent evolution of a photosystem I supercomplex in <i>Euglena gracilis</i>
Structural insights into the divergent evolution of a photosystem I supercomplex in <i>Euglena gracilis</i> Open
Photosystem I (PSI) forms supercomplexes with light-harvesting complexes (LHCs) to perform oxygenic photosynthesis. Here, we report a 2.82-angstrom cryo–electron microscopy structure of the PSI-LHCI supercomplex from Euglena gracilis , a e…
View article: Electronic Structure of the S <sub>1</sub> State Manganese Cluster in Photosystem II Investigated Using Q-Band Selective Hole-Burning
Electronic Structure of the S <sub>1</sub> State Manganese Cluster in Photosystem II Investigated Using Q-Band Selective Hole-Burning Open
View article: Structural insights into a citrate transporter that mediates aluminum tolerance in barley
Structural insights into a citrate transporter that mediates aluminum tolerance in barley Open
HvAACT1 is a major aluminum (Al)-tolerance gene in barley, encoding a citrate transporter that belongs to the multidrug and toxic compound extrusion (MATE) family. This transporter facilitates citrate secretion from the roots, thereby deto…
View article: Excitonic network organization enables efficient energy transfer in diatom photosystem I
Excitonic network organization enables efficient energy transfer in diatom photosystem I Open
View article: The role of protonation processes in the gradual formation of the light-adapted charge-separated state of photosystem II
The role of protonation processes in the gradual formation of the light-adapted charge-separated state of photosystem II Open
Earlier, we discovered that to reach the maximum chlorophyll- a (Chl- a ) fluorescence level of photosystem II (PSII) in diuron-treated samples, and thus PSII L , the light-adapted charge-separated state, multiple excitations with sufficie…
View article: Purification and pigment analysis of diadinoxanthin-binding PSI-LHCI supercomplexes from<i>Euglena gracilis</i>strain Z
Purification and pigment analysis of diadinoxanthin-binding PSI-LHCI supercomplexes from<i>Euglena gracilis</i>strain Z Open
Euglena gracilis , a phototrophic flagellate, possesses light-harvesting complexes (LHCs) with a pigment composition distinct from that of land plants and green algae, despite notable similarities in LHC polypeptide sequences to green alga…
View article: Purification and pigment analysis of diadinoxanthin-binding PSI-LHCI supercomplexes from Euglena gracilis strain Z
Purification and pigment analysis of diadinoxanthin-binding PSI-LHCI supercomplexes from Euglena gracilis strain Z Open
Euglena gracilis exhibits a unique pigment profile distinct from land plants and green algae. In this study, we purified photosystem I supercomplexes containing light-harvesting complexes (PSI-LHCI) from E. gracilis strain Z …
View article: Structure of a photosystem I supercomplex from <i>Galdieria sulphuraria</i> close to an ancestral red alga
Structure of a photosystem I supercomplex from <i>Galdieria sulphuraria</i> close to an ancestral red alga Open
Red algae exhibit unique photosynthetic adaptations, characterized by photosystem I (PSI) supercomplexes containing light-harvesting complexes (LHCs), forming PSI-LHCI supercomplexes. In this study, we solved the PSI-LHCI structure of Gald…
View article: Structure of a photosystem II-FCPII supercomplex from a haptophyte reveals a distinct antenna organization
Structure of a photosystem II-FCPII supercomplex from a haptophyte reveals a distinct antenna organization Open
Haptophytes are unicellular algae that produce 30 to 50% of biomass in oceans. Among haptophytes, a subset named coccolithophores is characterized by calcified scales. Despite the importance of coccolithophores in global carbon fixation an…
View article: Cryo‐EM Analysis of a Tri‐Heme Cytochrome‐Associated RC‐LH1 Complex from the Marine Photoheterotrophic Bacterium <i>Dinoroseobacter Shibae</i>
Cryo‐EM Analysis of a Tri‐Heme Cytochrome‐Associated RC‐LH1 Complex from the Marine Photoheterotrophic Bacterium <i>Dinoroseobacter Shibae</i> Open
The reaction center‐light harvesting 1 (RC‐LH1) complex converts solar energy into electrical energy, driving the initiation of photosynthesis. The authors present a cryo‐electron microscopy structure of the RC‐LH1 isolated from a marine p…
View article: Structural study of the chlorophyll between Lhca8 and PsaJ in an Antarctica green algal photosystem I-LHCI supercomplex revealed by its atomic structure
Structural study of the chlorophyll between Lhca8 and PsaJ in an Antarctica green algal photosystem I-LHCI supercomplex revealed by its atomic structure Open
Coccomyxa subellipsoidea is an oleaginous, non-motile unicellular green microalga isolated from Antarctica, and is an attractive candidate for CO2 fixation and biomass production. C. subellipsoidea is the first polar green alga …
View article: Excitonic Network Organization Enables Efficient Energy Transfer in Diatom Photosystem I–FCPI Complexes
Excitonic Network Organization Enables Efficient Energy Transfer in Diatom Photosystem I–FCPI Complexes Open
View article: Cryo-EM Structure of PSI-LHCI from a Red alga Cyanidium caldarium
Cryo-EM Structure of PSI-LHCI from a Red alga Cyanidium caldarium Open
View article: Structural dynamics of photosynthetic water-oxidation studied by X-ray free electron lasers
Structural dynamics of photosynthetic water-oxidation studied by X-ray free electron lasers Open
View article: Collective motions in the primary coordination sphere: a critical functional framework for catalytic activity of the oxygen-evolving complex of photosystem II
Collective motions in the primary coordination sphere: a critical functional framework for catalytic activity of the oxygen-evolving complex of photosystem II Open
Coordinated movements of primary-sphere side chains surrounding PSII's Mn 4 CaO 6 cluster function as a dynamic control framework, modulating the catalytic energy demands of the S 3 state.
View article: Correction: Collective motions in the primary coordination sphere: a critical functional framework for catalytic activity of the oxygen-evolving complex of photosystem II
Correction: Collective motions in the primary coordination sphere: a critical functional framework for catalytic activity of the oxygen-evolving complex of photosystem II Open
Correction for ‘Collective motions in the primary coordination sphere: a critical functional framework for catalytic activity of the oxygen-evolving complex of photosystem II’ by Hiroshi Isobe et al. , Chem. Sci. , 2025, https://doi.org/10…
View article: Conformational Flexibility of D1-Glu189: A Crucial Determinant in Substrate Water Selection, Positioning, and Stabilization within the Oxygen-Evolving Complex of Photosystem II
Conformational Flexibility of D1-Glu189: A Crucial Determinant in Substrate Water Selection, Positioning, and Stabilization within the Oxygen-Evolving Complex of Photosystem II Open
Photosynthetic water oxidation is a vital process responsible for producing dioxygen and supplying the energy necessary to sustain life on Earth. This fundamental reaction is catalyzed by the oxygen-evolving complex (OEC) of photosystem II…
View article: PSI-LHCI supercomplex binding with Lhcas from C. subellipsoidea
PSI-LHCI supercomplex binding with Lhcas from C. subellipsoidea Open
View article: Biochemical evidence for the diversity of LHCI proteins in PSI-LHCI from the red alga<i>Galdieria sulphuraria</i>NIES-3638
Biochemical evidence for the diversity of LHCI proteins in PSI-LHCI from the red alga<i>Galdieria sulphuraria</i>NIES-3638 Open
Red algae are photosynthetic eukaryotes whose light-harvesting complexes (LHCs) associate with photosystem I (PSI). In this study, we examined characteristics of PSI-LHCI, PSI, and LHCI isolated from the red alga Galdieria sulphuraria NIES…
View article: PSI-LHCI of the red alga Galdieria sulphuraria NIES-3638
PSI-LHCI of the red alga Galdieria sulphuraria NIES-3638 Open
View article: Author response: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
Author response: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex Open
View article: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex Open
Photosynthetic organisms exhibit remarkable diversity in their light-harvesting complexes (LHCs). LHCs are associated with photosystem I (PSI), forming a PSI-LHCI supercomplex. The number of LHCI subunits, along with their protein sequence…
View article: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex Open
Photosynthetic organisms exhibit remarkable diversity in their light-harvesting complexes (LHCs). LHCs are associated with photosystem I (PSI), forming a PSI-LHCI supercomplex. The number of LHCI subunits, along with their protein sequence…
View article: Author response: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
Author response: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex Open
View article: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex Open
Photosynthetic organisms display considerable diversity in light-harvesting complexes (LHCs). LHCs are attached to photosystem I (PSI), contributing to the formation of the PSI-LHCI supercomplex. The number of LHCIs and their protein and p…
View article: Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex Open
Photosynthetic organisms exhibit remarkable diversity in their light-harvesting complexes (LHCs). LHCs are associated with photosystem I (PSI), forming a PSI-LHCI supercomplex. The number of LHCI subunits, along with their protein sequence…
View article: Structural and spectroscopic insights into fucoxanthin chlorophyll a/c-binding proteins of diatoms in diverse oligomeric states
Structural and spectroscopic insights into fucoxanthin chlorophyll a/c-binding proteins of diatoms in diverse oligomeric states Open
View article: PSI-FCPI of the diatom Thalassiosira pseudonana CCMP1335
PSI-FCPI of the diatom Thalassiosira pseudonana CCMP1335 Open
View article: Structures of PSI-FCPI from<i>Thalassiosira pseudonana</i>in high light provide convergent evolution and light-adaptive strategies in diatom FCPIs
Structures of PSI-FCPI from<i>Thalassiosira pseudonana</i>in high light provide convergent evolution and light-adaptive strategies in diatom FCPIs Open
Diatoms achieve great survival success in the fluctuating oceanic environment, rely on fucoxanthin chlorophyll a / c -binding proteins (FCPs) to complete light harvesting and quenching, which provide about 20% primary productivity on earth…
View article: Structure and distinct supramolecular organization of a PSII-ACPII dimer from a cryptophyte alga Chroomonas placoidea
Structure and distinct supramolecular organization of a PSII-ACPII dimer from a cryptophyte alga Chroomonas placoidea Open
Cryptophyte algae are an evolutionarily distinct and ecologically important group of photosynthetic unicellular eukaryotes. Photosystem II (PSII) of cryptophyte algae associates with alloxanthin chlorophyll a/c -binding proteins (ACPs) to …