Identification of gut bacteria reductases that biotransform steroid hormones

Abstract excerpt

Abstract The metabolism of steroid hormones by the gut microbiome is increasingly recognized as a key factor in human health; however, the specific enzymes mediating these transformations remain largely unidentified. In this study, we identify Δ4-3-ketosteroid 5β-reductase, 3β-hydroxysteroid dehydrogenase/Δ5-4 isomerase, and Δ6-3-ketosteroid reductase enzyme families encoded by common human gut bacteria. Through...

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