Researchers from Konstanz and Zurich have deciphered a biochemical mechanism that ensures that newly formed proteins are processed correctly when they leave the cell's own protein factories. This solves a decade-old puzzle in protein sorting.

Dr. Stefan Schiller and Dr. Matthias Huber from the University of Freiburg’s livMatS Cluster of Excellence have succeeded in developing a muscle solely on the basis of natural proteins. The autonomous contractions of the material, which the researchers presented in the journal Advanced Intelligent Systems, can be controlled with the help of pH and temperature changes.

To ensure that protein production in our cells runs smoothly, the protein complex NAC slows down the rate of protein synthesis right at the start. An international research team with significant involvement of Konstanz biologists has now discovered what underlies this previously unknown function of NAC.

DZNE researchers discover link between the protein medin and Alzheimer's disease. The protein medin is deposited in the blood vessels of the brains of Alzheimer's patients along with the protein amyloid-β. DZNE Researchers have discovered this so-called co-aggregation. They have now published their observation in the renowned journal Nature.

A team of researchers from HITS and MPIP have developed a model that learns how to generate proteins whose structures are highly flexible, even with patterns that are uncommon in natural proteins. Their work, presented at the International Conference on Machine Learning (ICML), marks a step towards the goal of designing new proteins for applications in biotechnology, therapeutics and environmental research.

The targeted engineering of artificial proteins with unique properties – that is possible with the assistance of a novel method developed by a research team of Heidelberg University. It centers around a new AI model. This allows for forecasting how two proteins have to be fitted together at the molecular level from individual parts – subunits – in order to engineer a functional, adjustable new protein.

Research teams from the Universities of Konstanz and Potsdam are analyzing how proteins work together to enable our cells to both stick and move. The marker protein paxillin is at the centre of their interest.

The Damietta Server broadens the accessibility to protein design research and its applications in various biotechnological and biomedical fields. Researchers at the Max Planck Institute for Biology Tübingen, the University of Tübingen, and the University Hospital Tübingen have developed a web-based toolkit to accelerate and simplify protein design without needing powerful computers or extensive protein design expertise on the user’s end.

A protein with contradictory properties: Despite its large negative surface charge, it has a strong tendency to take up electrons, which are also negatively charged. The researchers discovered positively charged calcium ions inside the protein very near the electrons, counteracting their charge. They see this as a natural way of handling opposing electrical charges and allowing the protein to optimally fulfill its biological function.

Designing protein binders from scratch has long been a daunting challenge within the field of computational biology. Researchers have now developed an innovative, training-free pipeline that uses the fundamental principle of shape complementarity to design site-specific protein binders, which are then optimised to fit precisely onto chosen target sites. The researchers tested this on proteins linked to cancer.

Why 3,000 bars are needed to take a comprehensive look at a protein: Konstanz researchers Frederic Berner and Michael Kovermann present a new high-pressure spectroscopy method to unravel the properties of proteins' native structures.

Proteins have characteristic amino acid sequences, the analysis of which is fundamental for research and medicine. These can be decoded; however, so-called protein sequencing is expensive and time-consuming. A large-scale research project led by Prof. Dr. Jan Behrends from the Institute of Physiology at the University of Freiburg now aims to establish a new technology for protein sequencing using nanopores, which will be rapid and cost-effective.

Known as the power plant of the cell, mitochondria are essential to human metabolism. Human mitochondria consist of 1,300 different proteins and two fatty biomembranes. The vast majority of mitochondrial proteins are produced with a cleavable transport signal and have to be actively transported into the mitochondria.

The protein SNAP-tag is a powerful tool for labeling proteins with synthetic fluorophores for bioimaging. Scientists at the Max Planck Institute for Medical Research in Heidelberg have engineered a much improved version named SNAP-tag2 as well as optimized substrates for faster labeling in live cells.

Trenzyme GmbH - 20/05/2020

The SARS-CoV spike protein and its receptor

The SARS-CoV-2 coronavirus uses a spike protein to bind to the ACE2 receptor on the cell surfaces of lung tissue. Additional cofactors are needed to allow the virus genome to penetrate human cells and multiply. Knowing these relationships can help understand the course of the infection and develop counterstrategies. To this end, the Constance-based company Trenzyme has produced a recombinant spike protein to support coronavirus research.

Freiburg-Prague research collaboration achieves scientific breakthrough in understanding cell division. The international research collaboration has uncovered a new mechanism of the crosstalk between microtubules and actin cytoskeleton during cell division and revealed unique characteristics of the previously unexplored protein FAM110A.

Microorganisms produce nutrients in bioreactors - 12/03/2025

CO2 and H2 as starting materials for proteins and vitamins

Agricultural land needed to sustain the world's growing population is becoming increasingly scarce. To help address this challenge, researchers from the Environmental Biotechnology Group at the University of Tübingen have developed an innovative and sustainable power-to-vitamin technology. This breakthrough enables protein- and vitamin-rich foods to be produced with the help of microorganisms in a bioreactor using carbon dioxide and…

Konstanz researchers discover the function of a previously unexplored protein: In three characteristic steps, "C12orf29" links the ends of RNA strands. Proteins that perform this kind of RNA ligation were previously unknown in humans. The results of the study suggest that it is important for RNA repair during cellular stress.

A specific variant of the surface protein VSG of African trypanosomes, the causative agents of sleeping sickness, is associated with resistance to the important drug Suramin. Scientists at the German Cancer Research Center have now been able to find a possible explanation for the formation of resistance based on the crystal structure of this protein variant.

Cancer cells often grow in environments that are low in nutrients, and they cope with this challenge by switching their metabolism to using proteins as alternative "food". Building on genetic screens, an international team of scientists could identify the protein LYSET as part of a pathway that allows cancer cells to make this switch. Their findings are now published in the journal Science.

Genetic alterations that promote the development and spread of tumors are difficult to identify. This is especially true for mutations in the non-protein-coding regions of the genome, which include all important regulatory sequences. Scientists at the German Cancer Research Center have now published an algorithm that detects cancer drivers in both the protein-coding and non-coding regions of the genome.

Elastin as artificial muscle material - 02/03/2022

Artificial muscle from proteins for diverse future applications

As far as diversity and complexity are concerned, proteins are nature's smallest marvels. Biotechnologists have already used natural proteins as a basis for the development, bespoke design and production of artificial systems. This is what the livMatS cluster of excellence at the University of Freiburg has been doing. Researchers in the cluster have successfully produced an artificial muscle from elastin that functions autonomously.

Alzheimer's, Parkinson's and other neurodegenerative diseases are associated with inflammatory processes in the brain. German researchers have succeeded in identifying a group of proteins in the liquor that could provide information about such inflammatory processes. As so-called biomarkers, the proteins could help to better understand disease processes in the future and to test the effect of potential drugs against brain inflammation.

A molecular mechanism that contributes to the progression of Alzheimer’s disease has been discovered by a research team of Heidelberg University. The team, using an Alzheimer’s mouse model, demonstrated that a neurotoxic protein-protein complex is responsible for nerve cells in the brain dying off and the resulting cognitive decline. This finding opens up new perspectives for the development of effective treatments.

An important enzyme helps the body produce selenium proteins – this discovery could open up new strategies for treating cancer in children. This has been published by scientists from the University of Würzburg, the University Sao Paolo, the German Cancer Research Center (DKFZ) and the Heidelberg Stem Cell Institute HI-STEM*.