Publications by Rudolf Griss | EPFL Graph Search

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

Bioluminescent Antibodies for Point-of-Care Diagnostics

Kai Johnsson, Alberto Schena, Rudolf Griss, Qiuliyang Yu, Lin Xue

We introduce a general method to transform antibodies into ratiometric, bioluminescent sensor proteins for the no-wash quantification of analytes. Our approach is based on the genetic fusion of antibody fragments to NanoLuc luciferase and SNAP-tag, the lat ...

Wiley-VCH Verlag GmbH2017

Highly Modular Bioluminescent Sensors for Small Molecules and Proteins

Kai Johnsson, Alberto Schena, Rudolf Griss, Qiuliyang Yu

Obtaining patient-specific information through the quantification of small molecules and proteins in bodily fluids is essential for personalized therapies. Point-of-care (POC) diagnostic devices hold the promise of delivering such benefit to a wide range o ...

Elsevier Academic Press Inc2017

Luciferases with tunable emission wavelengths

Kai Johnsson, Luc Reymond, Olivier Vincent Sallin, Alberto Schena, Rudolf Griss, Qiuliyang Yu, Lin Xue, Julien Hiblot, Nicholas Clarke Hill, Marina Daniela Beatrice Sabbadini

We introduce luciferases whose emission maxima can be tuned to different wavelengths by chemical labeling. These tunable luciferases are generated by inserting the small luciferase NanoLuc into the structures of the self-labeling proteins SNAP-tag or HaloT ...

Wiley-Blackwell2017

Evaluating Cellular Drug Uptake with Fluorescent Sensor Proteins

Rudolf Hovius, Kai Johnsson, Kui Thong Tan, Rudolf Griss, Silvia Scarabelli

We are introducing a new approach to evaluate cellular uptake of drugs and drug candidates into living cells. The approach is based on converting the protein target of a given class of compounds into a fluorescent biosensor. By measuring the binding of dif ...

Amer Chemical Soc2017

Means and methods for bioluminescence resonance energy transfer (bret) analysis in a biological sample

Kai Johnsson, Alberto Schena, Rudolf Griss

The invention relates to the field of in vitro detection methods using luminescence. Provided is a sensor molecule for detecting an analyte of interest in a sample using bioluminescence resonance energy transfer (BRET), the sensor molecule comprising a pro ...

2016

Sensor molecules and uses thereof

Kai Johnsson, Alberto Schena, Rudolf Griss

The invention generally relates to methods, reagents and devices for determining a concentration of an analyte in a sample. Provided is a proteinaceous sensor molecule for detecting an analyte of interest (A), comprising a signal generating moiety tethered ...

2015

Bioluminescent sensor proteins for point-of-care therapeutic drug monitoring

Rudolf Griss

To ensure efficacy but avoid toxicity, many drugs require monitoring of their concentrations in the patient’s blood during therapy. Currently, therapeutic drug monitoring (TDM) is done in diagnostic laboratories that need trained personnel and expensive in ...

EPFL2013

A Semisynthetic Fluorescent Sensor Protein for Glutamate

Kai Johnsson, Luc Reymond, Matthias Albert Brun, Kui Thong Tan, Rudolf Griss

We report the semisynthesis of a fluorescent glutamate sensor protein on cell surfaces. Sensor excitation at 547 nm yields a glutamate-dependent emission spectrum between 550 and 700 nm that can be exploited for ratiometric sensing. On cells, the sensor di ...

2012

NextGen Speaks

Rudolf Griss

American Association for the Advancement of Science2012

The Social Conquest of Earth

Rudolf Griss

American Association for the Advancement of Science2012

Visualizing Biochemical Activities in Living Cells through Chemistry

Kai Johnsson, Luc Reymond, Matthias Albert Brun, Karolina Bojkowska, Birgit Mollwitz, Grazvydas Lukinavicius, Anastasiya Masharina, Alberto Schena, Keitaro Umezawa, Rudolf Griss

The development of molecular probes to visualize cellular processes is an important challenge in chemical biology. One possibility to create such cellular indicators is based on the selective labeling of proteins with synthetic probes in living cells. Over ...

2011

Semisynthesis of fluorescent metabolite sensors on cell surfaces

Horst Vogel, Kai Johnsson, Joachim Piguet, Luc Reymond, Matthias Albert Brun, Kui Thong Tan, Ruud Peters, Rudolf Griss

Progress in understanding signal transduction and metabolic pathways is hampered by a shortage of suitable sensors for tracking metabolites, second messengers, and neurotransmitters in living cells. Here we introduce a class of rationally designed semisynt ...

2011