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G Protein coupled receptors (GPCRs) constitute an abundant family of membrane proteins which play a central role in cellular signaling and are important targets for modern medicine. Despite intensive research, central questions of the molecular mechanism o ...
Conformational changes of channel activation: Five enhanced green fluorescent protein (EGFP) mols. (green cylinders) were integrated into the intracellular part of the homopentameric ionotropic 5-HT3 receptor. This allowed the detection of extracellular bi ...
G protein-coupled receptors (GPCR) constitute by far the largest family of transmembrane cell-surface proteins involved in signal transduction and are the most important targets for the development of novel therapeutic compounds. Many processes mediated by ...
Duocarmycins are a potent class of antitumor agents. Their activity arises by their covalent binding to adenine nucleobases of DNA. We use classical mol. dynamics and hybrid (QM/MM) Car-Parrinello mol. dynamics simulations to study non-covalent and covalen ...
The lack of angiogenesis in ischemic tissues is a major health problem and many studies aim to explore strategies to locally increase blood perfusion. Our approach is to use covalently modified fibrin-based hydrogels as a matrix that induces endothelial ce ...
Notch genes encode evolutionarily conserved large, single transmembrane receptors, which regulate many cell fate decisions and differentiation processes during fetal and postnatal life. Multiple Notch receptors and ligands are expressed in both developing ...
The subject of this thesis is the study of the structure and function of the human muscle nicotinic acetylcholine receptor (nAChR), which is a typical member of the large class of ligand-gated ion channels. Appropriate techniques, like site-directed mutage ...
Understanding cellular signaling mediated by cell surface receptors is key to modern biomedical research and drug development. The discovery of a growing no. of potential mol. targets and therapeutic compds. requires downscaling and accelerated functional ...
With the reversible sequential (ReSeq) binding assay, we present a novel approach for the ultrasensitive profiling of receptor function in single living cells. This assay is based on the repetitive application of fluorescent ligands that have fast assocn.- ...
Transcriptional activity relies on coregulators that modify the chromatin structure and serve as bridging factors between transcription factors and the basal transcription machinery. Using the DE domain of human peroxisome proliferator-activated receptor g ...