Pharmaceutical industry

Rhodopsins as an alternative to photosynthesis

For numerous species of living organisms, the climate crisis will lead to environmental conditions that they will not be able to survive. Microalgae could fare differently, as a study by GEOMAR Helmholtz Centre for Ocean Research Kiel, the University of Würzburg and the University of East Anglia (UEA) has now shown. According to the study, the unicellular organisms can adapt to nutrient deficiencies, such as those to be expected in warming seas, with the help of a light-driven proton pump.

When bacteria communicate with fungi

Humans, animals, plants and single-celled organisms use small biomolecules as signaling substances to send messages or trigger reactions. "Microorganisms produce a variety of such substances, and we are just beginning to understand this language," says Axel Brakhage, director of the Leibniz Institute for Natural Product Research and Infection Biology and professor at Friedrich Schiller University Jena. He and his research group have found that representatives of the bacterial genus Streptomyces are particularly capable of communication.

New biocatalyst for medical agents

Do you know the smell of rapeseed fields? If so, then you know what indole smells like. Not only rapeseed produces this characteristic smelling molecule, but many microorganisms use it in their metabolism. In order for the microorganisms to form important compounds from it, they must first activate the indole. This is done by an enzyme called indole monooxygenase. Researchers at the Ruhr-Universität Bochum and the University of Leipzig have now studied the structure and interaction of this enzyme with its substrate and the cofactor required for the reaction.

DFG funding for search for natural substances

Genome mining - the systematic search of genomes - is the focus of an Emmy Noether Fellowship from the German Research Foundation (DFG). Natural product genomicist Eric Helfrich of the LOEWE Center for Translational Biodiversity Genomics is receiving it to use artificial intelligence methods to discover natural products for medicine, food production or agriculture in novel ways. "Peptide Biosynthesis Off the Beaten Path: Machine Learning-based Identification of Unusual Peptide Natural Products" is the name of the project launched in January.

Bacillus subtilis is Microbe of the Year 2023

Microorganisms such as bacteria, fungi and yeasts are the invisible little helpers of the bioeconomy. Thanks to them, biological resources can be tapped, new bio-based products manufactured and production processes made more sustainable. To draw attention to the diversity of microbes and their great potential for application, the members of the Association for General and Applied Microbiology (VAAM) vote for the Microbe of the Year. This year, Bacillus subtilis is in the spotlight.

Biosynthesis for fluorinated drugs

Fluorine is a small atom with a big effect: For decades, the pharmaceutical industry has been using it to improve active medical ingredients. For example, fluorine can improve the binding of an active ingredient to its target molecule, increase the availability of the active ingredient to the body, or change the residence time of the active ingredient in the body. Until now, incorporating fluorine usually required complex chemical syntheses.

Refining active plant ingredients

Medicine has always relied on the healing powers of nature. Plant-based active ingredients are therefore a sought-after raw material for both the pharmaceutical and cosmetics industries. However, their extraction from medicinal plants such as thyme and chamomile is subject to natural fluctuations, so that the active ingredient content varies. In addition, climate change and barren soils further reduce the concentrations of the ingredients, thus lowering the quality of conventionally extracted essential oil.