0000000001296275

AUTHOR

Kristina Gundlach

showing 2 related works from this author

Filling the “green gap” of the major light-harvesting chlorophyll a/b complex by covalent attachment of Rhodamine Red

2009

AbstractThe major light-harvesting chlorophyll a/b complex (LHCII) greatly enhances the efficiency of photosynthesis in green plants. Recombinant LHCII can be assembled in vitro from its denatured, bacterially expressed apoprotein and plant pigments. This makes it an interesting candidate for biomimetic light-harvesting in photovoltaic applications. Due to its almost 20 pigments bound per apoprotein, LHCII absorbs efficiently in the blue and red spectral domains of visible light but less efficiently in the green domain, the so-called “green gap” in its absorption spectrum. Here we present a hybrid complex of recombinant LHCII with organic dyes that add to LHCII absorption in the green spect…

ChlorophyllLHCIIProtein FoldingFRET (Förster resonance energy transfer)Chlorophyll aAbsorption spectroscopyBiophysicsPhotosynthesisPhotochemistryBiochemistryRhodamineLight-harvesting complexchemistry.chemical_compoundPhotosynthesisFluorescent DyesRhodaminesChlorophyll Afood and beveragesSite-specific labelingCell BiologyMaleimide dyeB vitaminsSolar spectrumchemistryChlorophyllVisible spectrumBiochimica et Biophysica Acta (BBA) - Bioenergetics
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Site-specific incorporation of perylene into an N-terminally modified light-harvesting complex II.

2010

Employing the utility of the native chemical ligation, site-specific attachment of an ultrastable perylene dye to a derivative of the major light-harvesting complex (LHCII) was demonstrated. Biochemical analysis of the conjugate indicated that the structure and function of LHCII remain largely unaffected by the N-terminal modification.

Molecular Sequence DataLight-Harvesting Protein Complexes010402 general chemistryPhotochemistry01 natural sciencesBiochemistry03 medical and health scienceschemistry.chemical_compoundPhysical and Theoretical ChemistryFLUORESCENCEPROTEIN LIGATIONPerylene030304 developmental biologyFluorescent DyesPlant Proteins0303 health sciencesSTABILITYOrganic ChemistryMICROSCOPYPlantsNative chemical ligationFluorescenceLIVE CELLS0104 chemical sciencesStructure and functionchemistryBiophysicsSMALL-MOLECULE PROBESCYSTEINEPeryleneDerivative (chemistry)DYESCysteineConjugateLight harvesting complex IIOrganicbiomolecular chemistry
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