0000000000064472

AUTHOR

Rajiv Harimoorthy

showing 2 related works from this author

Ubiquitous Structural Signaling in Bacterial Phytochromes

2015

The phytochrome family of light-switchable proteins has long been studied by biochemical, spectroscopic and crystallographic means, while a direct probe for global conformational signal propagation has been lacking. Using solution X-ray scattering, we find that the photosensory cores of several bacterial phytochromes undergo similar large-scale structural changes upon red-light excitation. The data establish that phytochromes with ordinary and inverted photocycles share a structural signaling mechanism and that a particular conserved histidine, previously proposed to be involved in signal propagation, in fact tunes photoresponse.

0303 health sciencesBacteriaPhytochromeProtein dynamicsta1182BiologyX-ray scattering010402 general chemistryBioinformaticsphytochromes01 natural sciences0104 chemical sciences/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitation03 medical and health sciencesprotein dynamicsBiophysicsGeneral Materials SciencePhytochromePhysical and Theoretical ChemistrySignal transductionSDG 6 - Clean Water and SanitationHistidinesignal transduction030304 developmental biologyJournal of Physical Chemistry Letters
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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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