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Identification and expression of the 11b-steroid hydroxylase from Cochliobolus lunatus in Corynebacterium glutamicum

AuthorsFelpeto-Santero, Carmen; Galán, Beatriz ; Luengo, José M.; Fernández-Cañón, José Manuel; Del Cerro, Carlos ; Medrano, Francisco Javier; García, José Luis
Issue Date14-Jun-2019
PublisherJohn Wiley & Sons
CitationMicrob Biotechnol 12(5): 856–868 (2019)
AbstractHydroxylation of steroids has acquired special relevance for the pharmaceutical industries. Particularly, the 11β-hydroxylation of steroids is a reaction of biotechnological importance currently carried out at industrial scale by the fungus Cochliobolus lunatus. In this work, we have identified the genes encoding the cytochrome CYP103168 and the reductase CPR64795 of C. lunatus responsible for the 11β-hydroxylase activity in this fungus, which is the key step for the preparative synthesis of cortisol in industry. A recombinant Corynebacterium glutamicum strain harbouring a plasmid expressing both genes forming a synthetic bacterial operon was able to 11β-hydroxylate several steroids as substrates. This is a new example to show that the industrial strain C. glutamicum can be used as a suitable chassis to perform steroid biotransformation expressing eukaryotic cytochromes.
Publisher version (URL)https://doi.org/10.1111/1751-7915.13428
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