Cell‐free protein synthesis for the screening of novel azoreductases and their preferred electron donor

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dc.contributor.authorRolf, Jascha
dc.contributor.authorNgo, Anna Christina Reyes
dc.contributor.authorLütz, Stephan
dc.contributor.authorTischler, Dirk
dc.contributor.authorRosenthal, Katrin
dc.date.accessioned2024-02-12T13:20:40Z
dc.date.available2024-02-12T13:20:40Z
dc.date.issued2022-05-20
dc.description.abstractAzoreductases are potent biocatalysts for the cleavage of azo bonds. Various gene sequences coding for potential azoreductases are available in databases, but many of their gene products are still uncharacterized. To avoid the laborious heterologous expression in a host organism, we developed a screening approach involving cell-free protein synthesis (CFPS) combined with a colorimetric activity assay, which allows the parallel screening of putative azoreductases in a short time. First, we evaluated different CFPS systems and optimized the synthesis conditions of a model azoreductase. With the findings obtained, 10 azoreductases, half of them undescribed so far, were screened for their ability to degrade the azo dye methyl red. All novel enzymes catalyzed the degradation of methyl red and can therefore be referred to as azoreductases. In addition, all enzymes degraded the more complex and bulkier azo dye Brilliant Black and four of them also showed the ability to reduce p-benzoquinone. NADH was the preferred electron donor for the most enzymes, although the synthetic nicotinamide co-substrate analogue 1-benzyl-1,4-dihydronicotinamide (BNAH) was also accepted by all active azoreductases. This screening approach allows accelerated identification of potential biocatalysts for various applications.en
dc.identifier.urihttp://hdl.handle.net/2003/42325
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-24162
dc.language.isoende
dc.relation.ispartofseriesChemBioChem;23(15)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de
dc.subjectAzo bondsen
dc.subjectAzo dyesen
dc.subjectBiocatalysisen
dc.subjectCFPSen
dc.subjectEnzyme screeningen
dc.subjectNADHen
dc.subjectNADPHen
dc.subject.ddc660
dc.titleCell‐free protein synthesis for the screening of novel azoreductases and their preferred electron donoren
dc.typeTextde
dc.type.publicationtypeResearchArticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationJ. Rolf, A. C. R. Ngo, S. Lütz, D. Tischler, K. Rosenthal, ChemBioChem 2022, 23, e202200121.de
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/cbic.202200121de

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