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Thiamine diphosphate (ThDP) dependent carboligases catalyze the formation of carbon‐carbon bonds. These enzymes are prominent biocatalysts for the production of valuable α‐hydroxy carbonyl compounds, which serve as key building blocks in the synthesis of various pharmaceuticals and fine chemicals. Carboligases act in selective manner to afford regio‐ and stereochemically defined products from simple starting materials. This review explores the catalytic prowess of carboligases for synthetic purposes and is aimed at providing a selection tool of enzymes for particular sets of substrates or desired products. The comprehensive overview encompasses structural insights, relationships of the currently known sequence space and practical applications with a focus on recent literature, showcasing carboligases as potent tools for sustainable and efficient synthesis. [ABSTRACT FROM AUTHOR]

This review comprehensively covers the most recent achievements (from 2013) in the successful integration of nanomaterials in the field of glycomics. The first part of the paper addresses the beneficial properties of nanomaterials for the construction of biosensors, bioanalytical devices, and protocols for the detection of various analytes, including viruses and whole cells, together with their key characteristics. The second part of the review focuses on the application of nanomaterials integrated with glycans for various biomedical applications, that is, vaccines against viral and bacterial infections and cancer cells, as therapeutic agents, for in vivo imaging and nuclear magnetic resonance imaging, and for selective drug delivery. The final part of the review describes various ways in which glycan enrichment can be effectively done using nanomaterials, molecularly imprinted polymers with polymer thickness controlled at the nanoscale, with a subsequent analysis of glycans by mass spectrometry. A short section describing an active glycoprofiling by microengines (microrockets) is covered as well. [ABSTRACT FROM AUTHOR]

Enantiomerenreine, chirale Amine sind unentbehrliche Bausteine in bioaktiven Pharmazeutika, und ihre Synthese aus einfachen Startmaterialien ist daher von großem Interesse. Eine der vielversprechendsten Strategien ist die chemisch anspruchsvolle, stereoselektive Synthese chiraler Amine durch eine C‐H‐Aminierung. Hier berichten wir über den Einsatz einer Multienzym‐Kaskade, generiert in einer einzelnen bakteriellen Ganzzelle, die es möglich macht, stereoselektive Aminierungen in Benzylposition mit ee‐Werten von 97.5 % zu katalysieren. Die Kaskade nutzt dabei vier heterolog exprimierte, rekombinante Enzyme, wobei die nötigen Kofaktoren von der Wirtzelle bereitgestellt werden und Isopropylamin als Aminodonor extern zugegeben wird. Diese Kaskade repräsentiert damit das erste Beispiel eines erfolgreichen De‐novo‐Designs eines einzelnen Ganzzellen‐Biokatalysators für die formale stereoselektive C‐H‐Aminierung. Enantiomerenreine, chirale Amine sind unentbehrliche Bausteine in bioaktiven Pharmazeutika, und ihre Synthese aus einfachen Startmaterialien ist daher von großem Interesse. Eine Strategie ist die stereoselektive Synthese chiraler Amine durch C‐H‐Aminierung. Eine Multienzym‐Kaskade, generiert in einer einzelnen bakteriellen Ganzzelle, ermöglicht es, stereoselektive Aminierungen in Benzylposition mit 97.5 % ee zu katalysieren. [ABSTRACT FROM AUTHOR]

Enantiomerically pure chiral amines are ubiquitous chemical building blocks in bioactive pharmaceutical products and their synthesis from simple starting materials is of great interest. One of the most attractive strategies is the stereoselective installation of a chiral amine through C−H amination, which is a challenging chemical transformation. Herein we report the application of a multienzyme cascade, generated in a single bacterial whole-cell system, which is able to catalyze stereoselective benzylic aminations with ee values of 97.5 %. The cascade uses four heterologously expressed recombinant enzymes with cofactors provided by the host cell and isopropyl amine added as the amine donor. The cascade presents the first example of the successful de novo design of a single whole-cell biocatalyst for formal stereoselective C−H amination. [ABSTRACT FROM AUTHOR]

Enantiomerenreine chirale Amine sind allgegenwärtige chemische Bausteine in bioaktiven Pharmazeutika. Eine der interessantesten Strategien für ihre Synthese ist der stereoselektive Aufbau eines chiralen Amins durch formale C‐H‐Aminierung. S. Flitsch et al. berichten in der Zuschrift auf S. 1533 ff. über die Entwicklung und Anwendung einer Multienzym‐Kaskade, die stereoselektive Aminierungen in Benzylposition katalysieren kann, in einer einzelnen bakteriellen Ganzzelle. [ABSTRACT FROM AUTHOR]

The cover page of the article "Whole-Cell Biocatalysts for Stereoselective C-H Amination Reactions," is presented.