Nucleic Acid-, Protein and Cell-related Technologies

Fibrosis is the excessive accumulation of extracellular matrix that leads to destruction of the tissue architecture and consequently organ failure. In the developed world, an estimated 45 % of all deaths resulted from severe fibrotic diseases. A wide range of chronic diseases are able to induce fibrosis such as hepatitis, pulmonary disease, scleroderma and cancer. Current therapies for fibrosis are limited and of low efficacy. Further research on fibrosis is required to understand disease progression ...

The development of the cation channel channelrhodopsin-2 (ChR2) from Chlamydomonas reinhardtii by Prof. Ernst Bamberg and his colleagues, and its application to light-induced modulation of neurons paved the way for the field of optogenetics.
Over time the light-gated cation channel channelrhodopsin-2 (ChR2) has become an indispensable tool in neuroscience. Based on the pioneering work on ChR2 new variants have emerged, differing in their spectrum of light absorption, their kinetic ...

The cellular identity of mature cells that are confined in a specialized genetic expression profile can be overcome by introducing just a few genes that encode for so-called reprogramming factors [1]. By means of this intervention, also known as reprogramming, the cells then become pluripotent and represent induced pluripotent stem cells (iPS cells) [1]. Nowadays, numerous new cell culture models have been established based on reprogramming protocols that yield iPS cells. Such cell culture models ...

Precise genome editing demands for homology-directed repair (HDR) by aiming to introduce a new double stranded DNA substituting for a homologous sequence but partially defect one. This substrate dependent reaction does compete with direct non-homologous end joining (NHEJ) of the double strand breaks. NHEJ is error-prone and is therefor mainly used for gene inactivation.
The rate of NHEJ is directly limiting the rate of HDR. For this reason HDR in vitro does occur on a very low level only and ...

A Cas nuclease such as Cas9 can introduce a DNA double strand break in a sequence target that is complementary to a 20-nt spacer sequence of its bound guide RNA (gRNA) when a protospacer adjacent motif (PAM) is present. The gRNA can be provided as duplex of spacer containing CRISPR RNA (crRNA) and trans-activating crRNA (tracrRNA). Or as a single gRNA (sgRNA) where crRNA and tracrRNA are fused by an artificial loop.
Hence a gRNA consists of the target-specific spacer and a constant part typically ...

The LITESEC-T3SS (Light-induced translocation of effectors through sequestration of endogenous components of the T3SS) system represents a novel, fast, specific, and reversible method to control protein secretion into eukaryotic cells, enabling various medicinal and biotechnological applications, such as targeted drug delivery for tumor therapy.

A synthetic virus-like particle, comprising a lipid bilayer, that can be adjusted precisely to mimic biophysical features of various natural pathogens. The lipid bilayer can also be equipped with relevant molecules such as the SARS-CoV-2 spike protein ectodomain.

We present an extremely sensitive, reliable and fast novel Lysine deacetylase (KDAC) assay, which can be performed in a continuous format. This novel KDAC assay is based on Firefly luciferase harboring an acetylation on an essential active site lysine, incorporated by genetic code expansion.

We furthermore offer a bacterial selection system that can help engineer KDACs. The selection system uses a reporter enzyme inactivated by lysine modifications at an essential active site residue, thereby ...

Antiviral therapy against retroviruses and alphaviruses using tRNA^Leu(UUA) overexpression

Plant pathogenic fungi, oomycetes and bacteria have highly diverse lifestyles, infection strategies and morphologies. Therefore, pesticides frequently target basic cellular processes, as these are well characterized and often very similar among plant pathogens. Many pesticides target enzymes that play a role in e.g. nucleic acid synthesis, respiration, cell division and other essential cellular processes. However, the molecular ...

Direct quantification of the absolute amount of multiple proteins in one a SILAC experiment using Protein Epitope Signature Tags (PrESTs) which consist of a short and unique region of the protein of interest as well as purification and solubility tags and are expressed recombinantly in E. coli

SUMOvera enables versatile purification strategies for broad applications in eukaryotic hosts.

Unique multifunctional oligonucleotide for the ultrafast transcriptome-wide identification of RNA-binding protein (RBP) targets.