Kai Johnsson

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (125)

A biosensor for measuring NAD(+) levels at the point of care

Johan Auwerx, Kai Johnsson, Luc Patiny, Elena Katsyuba, Qiuliyang Yu, Lin Xue

The cellular level of nicotinamide adenine dinucleotide (NAD(+)), through its different functions, affects cellular metabolism and signalling(1-3). A decrease in the NAD(+) content has been associated with various pathologies and physiological aging(4,5), ...

NATURE PUBLISHING GROUP2019

Photoactivation of silicon rhodamines via a light-induced protonation

Kai Johnsson, Luc Reymond, Michelle Susanne Frei

Photoactivatable fluorophores are important for single-particle tracking and super-resolution microscopy. Here we present a photoactivatable fluorophore that forms a bright silicon rhodamine derivative through a light-dependent protonation. In contrast to ...

Nature Research2019

Semisynthetic biosensors for mapping cellular concentrations of nicotinamide adenine dinucleotides

Kai Johnsson, Olivier Vincent Sallin, Luc Reymond

2018

A New Fluorogenic Small-Molecule Labeling Tool for Surface Diffusion Analysis and Advanced Fluorescence Imaging of beta-site Amyloid Precursor Protein-Cleaving Enzyme 1 Based on Silicone Rhodamine: SiR-BACE1

Kai Johnsson, Johannes Broichhagen

2018

Control of mechanical pain hypersensitivity in mice through ligand-targeted photoablation of TrkB-positive sensory neurons

Kai Johnsson, Luc Reymond, Sebastian Lechner

Nature Research2018

A Chemogenetic Approach for the Optical Monitoring of Voltage in Neurons

Rudolf Hovius, Kai Johnsson, Luc Reymond, Howard Riezman, Efthymia Prifti

Wiley-VCH Verlag GmbH2018

The metabolite BH4 controls T cell proliferation in autoimmunity and cancer

Kai Johnsson, Jairo Alexander Lozano Moreno, Yann Mathieu Pierson

Genetic regulators and environmental stimuli modulate T cell activation in autoimmunity and cancer. The enzyme co-factor tetrahydrobiopterin (BH4) is involved in the production of monoamine neurotransmitters, the generation of nitric oxide, and pain(1,2). ...

NATURE PUBLISHING GROUP2018

Semisynthetic sensor proteins enable metabolic assays at the point of care

Kai Johnsson, Rudolf Griss, Qiuliyang Yu, Lin Xue, Julien Hiblot

Monitoring metabolites at the point of care could improve the diagnosis and management of numerous diseases. Yet for most metabolites, such assays are not available. We introduce semisynthetic, light-emitting sensor proteins for use in paper-based metaboli ...

American Association for the Advancement of Science2018

Sensors, methods and kits for detecting nadph based on resonance energy transfer

Kai Johnsson, Qiuliyang Yu

The invention relates to the detection of the cofactor reduced nicotinamide adenine dinucleotide phosphate (NADPH). Provided is a sensor molecule for the resonance energy transfer (RET)-based detection of NADPH, the sensor comprising a segment A connected ...

2018

SNAP-Tagged Nanobodies Enable Reversible Optical Control of a G Protein-Coupled Receptor via a Remotely Tethered Photoswitchable Ligand

Kai Johnsson, Johannes Broichhagen, Helen Rebecca Ostlund Farrants

G protein-coupled receptors (GPCRs) mediate the transduction of extracellular signals into complex intracellular responses. Despite their ubiquitous roles in physiological processes and as drug targets for a wide range of disorders, the precise mechanisms ...

AMER CHEMICAL SOC2018

Page 4 sur 13