0000000000307165

AUTHOR

Stefan W. Hell

showing 2 related works from this author

Dysregulated Expression of Neuregulin-1 by Cortical Pyramidal Neurons Disrupts Synaptic Plasticity

2014

Summary Neuregulin-1 ( NRG1 ) gene variants are associated with increased genetic risk for schizophrenia. It is unclear whether risk haplotypes cause elevated or decreased expression of NRG1 in the brains of schizophrenia patients, given that both findings have been reported from autopsy studies. To study NRG1 functions in vivo, we generated mouse mutants with reduced and elevated NRG1 levels and analyzed the impact on cortical functions. Loss of NRG1 from cortical projection neurons resulted in increased inhibitory neurotransmission, reduced synaptic plasticity, and hypoactivity. Neuronal overexpression of cysteine-rich domain (CRD)-NRG1, the major brain isoform, caused unbalanced excitato…

MaleDendritic SpinesNeuregulin-1Nonsynaptic plasticityGene ExpressionMice TransgenicNeurotransmissionInhibitory postsynaptic potentialSynaptic TransmissionGeneral Biochemistry Genetics and Molecular BiologyCell MovementInterneuronsConditioning Psychologicalmental disordersAnimalsNeuregulin 1lcsh:QH301-705.5CA1 Region HippocampalNeuronal PlasticitybiologyPyramidal CellsAnatomyFearCortex (botany)Synaptic fatiguelcsh:Biology (General)Synaptic plasticitybiology.proteinExcitatory postsynaptic potentialFemaleNerve NetNeuroscience
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Inside a Shell—Organometallic Catalysis Inside Encapsulin Nanoreactors

2021

Abstract Compartmentalization of chemical reactions inside cells are a fundamental requirement for life. Encapsulins are self‐assembling protein‐based nanocompartments from the prokaryotic repertoire that present a highly attractive platform for intracellular compartmentalization of chemical reactions by design. Using single‐molecule Förster resonance energy transfer and 3D‐MINFLUX analysis, we analyze fluorescently labeled encapsulins on a single‐molecule basis. Furthermore, by equipping these capsules with a synthetic ruthenium catalyst via covalent attachment to a non‐native host protein, we are able to perform in vitro catalysis and go on to show that engineered encapsulins can be used …

Mycobacterium smegmatisHomogeneous catalysisNanotechnologyNanoreactor010402 general chemistrysingle-molecule FRET01 natural sciences7. Clean energyCatalysisCatalysis03 medical and health sciencesBacterial ProteinsFluorescence Resonance Energy TransferOrganometallic CompoundsParticle SizeResearch Articles030304 developmental biology0303 health sciencesChemistryencapsulinsGeneral Medicineself-assemblyGeneral ChemistrySingle-molecule FRETCompartmentalization (psychology)Bioorthogonal Chemistryhomogeneous catalysisNanostructures0104 chemical sciencesFörster resonance energy transferMicroscopy FluorescenceCovalent bondSelf-assemblyMINFLUXResearch ArticleAngewandte Chemie International Edition
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