2024
Cryo-EM structure of a photosystem I variant containing an unusual plastoquinone derivative in its electron transfer chain
Gisriel C, Kurashov V, Iwig D, Russell B, Vinyard D, Brudvig G, Golbeck J, Lakshmi K. Cryo-EM structure of a photosystem I variant containing an unusual plastoquinone derivative in its electron transfer chain. Science Advances 2024, 10: eadp4937. PMID: 39612342, PMCID: PMC11606441, DOI: 10.1126/sciadv.adp4937.Peer-Reviewed Original ResearchMeSH KeywordsCryoelectron MicroscopyElectron TransportModels, MolecularPhotosystem I Protein ComplexPlastoquinoneSynechocystisConceptsCryo-EM structureChemical bond energyElectron transfer chainBond energyPCC 6803Fuel catalystPhotosystem IBinding environmentTransfer chainLow binding affinityI variantsPlastoquinone derivativesBinding affinityCatalystPlastoquinone-9PS ICyanobacteriumBiophysical dataPhotosystemEnergyPhotonsVariantsAffinity
2023
Helical allophycocyanin nanotubes absorb far-red light in a thermophilic cyanobacterium
Gisriel C, Elias E, Shen G, Soulier N, Flesher D, Gunner M, Brudvig G, Croce R, Bryant D. Helical allophycocyanin nanotubes absorb far-red light in a thermophilic cyanobacterium. Science Advances 2023, 9: eadg0251. PMID: 36961897, PMCID: PMC10038336, DOI: 10.1126/sciadv.adg0251.Peer-Reviewed Original ResearchConceptsFar-red lightLight-harvesting proteinsLight-harvesting phycobiliproteinsCryo-electron microscopyStructure-function relationshipsLow-light environmentsAP complexesThermophilic cyanobacteriumLow lightBiological plasticityPhotosystem I.Likely associatesAllophycocyaninParalogsEnhanced abilityCyanobacteriaCyanobacteriumAcclimationSubunitsPhycobiliproteinsProteinResource accessibilityDiversityAssemblesChlorophyll