0000000000135249

AUTHOR

David Arnlund

showing 2 related works from this author

Visualizing a protein quake with time-resolved X-ray scattering at a free-electron laser

2014

We describe a method to measure ultrafast protein structural changes using time-resolved wide-angle X-ray scattering at an X-ray free-electron laser. We demonstrated this approach using multiphoton excitation of the Blastochloris viridis photosynthetic reaction center, observing an ultrafast global conformational change that arises within picoseconds and precedes the propagation of heat through the protein. This provides direct structural evidence for a 'protein quake': the hypothesis that proteins rapidly dissipate energy through quake-like structural motions. peerReviewed

Photosynthetic reaction centreMaterials scienceProtein ConformationPhysics::OpticsPhycobiliproteinsfrequency vibrational-modesRadiation DosageBiochemistryMolecular physicsArticlelaw.inventionProtein structureX-Ray Diffractionlawddc:570Scattering Small AngleMolecular Biologyta116Quantitative Biology::BiomoleculesScatteringLasersMolecular biophysicsFree-electron laserCell BiologyLaserstructural dynamicsEnergy TransferPicosecondBiophysicsUltrashort pulseBiotechnologyNature methods
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Ultrafast structural changes within a photosynthetic reaction centre

2021

Nature <London> / Physical science 589, 310 - 314 (2021). doi:10.1038/s41586-020-3000-7

0301 basic medicinePhotosynthetic reaction centreChlorophyllModels MolecularklorofylliCytoplasmUbiquinonePhotosynthetic Reaction Center Complex ProteinsElectrons02 engineering and technologyPhotochemistrymedicine.disease_cause530yhteyttäminenbakteeritElectron Transport03 medical and health sciencesElectron transfermedicineMoleculeddc:530BacteriochlorophyllsbioenergetiikkaComputingMilieux_MISCELLANEOUSHyphomicrobiaceaeMultidisciplinaryBinding SitesCrystallography[SDV.BBM.BS]Life Sciences [q-bio]/Biochemistry Molecular Biology/Structural Biology [q-bio.BM]ChemistryBlastochloris viridisLaserskalvot (biologia)PheophytinsBiological membraneVitamin K 2021001 nanoscience & nanotechnologyAcceptor030104 developmental biologyPicosecondFemtosecondsense organsProtons0210 nano-technologyOxidation-Reductionröntgenkristallografia
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