21-Hydroxypregnane 21-O-malonylation, a crucial step in cardenolide biosynthesis, can be achieved by substrate-promiscuous BAHD-type phenolic glucoside malonyltransferases from Arabidopsis thaliana and homolog proteins from Digitalis lanata (2021) Tropper M, Höhn S, Wolf LS, Fritsch J, Kastner-Detter N, Rieck C, Munkert J, et al. Journal article, Original article PRISEs (progesterone 5β-reductase and/or iridoid synthase-like 1,4-enone reductases): Catalytic and substrate promiscuity allows for realization of multiple pathways in plant metabolism. (2018) Schmidt K, Petersen J, Munkert J, Egerer-Sieber C, Hornig M, Muller Y, Kreis W Journal article Identification of odorants in frankincense (Boswellia sacra Flueck.) by aroma extract dilution analysis and two-dimensional gas chromatography-mass spectrometry/olfactometry. (2015) Niebler J, Büttner A Journal article Identification of potent odorants in frankincense (Boswellia sacra) by aroma extract dilution analysis and two-dimensional gas chromatography-olfactometry (2015) Niebler J, Büttner A Journal article A young root-specific gene (ArMY2) from horseradish encoding a MYR II myrosinase with kinetic perference for the root-specific glucosinolate gluconasturtiin (2014) Loebers A, Müller-Uri F, Kreis W Journal article, Original article Purification of Δ(5)-3-ketosteroid isomerase from Digitalis lanata (2014) Meitinger N, Geiger D, Augusto TW, Maia de Pádua R, Kreis W Journal article, Original article Identification and stress-induced expression of three 3β-hydroxysteroid dehydrogenases from Erysimum crepidifolium Rchb. and their putative role in cardenolide biosynthesis (2014) Munkert J, Ernst M, Müller-Uri F, Kreis W Journal article, Original article Vein Patterning 1-encoded progesterone 5beta-reductase: Activity-guided improvement of catalytic efficiency (2012) Bauer P, Rudolph K, Müller-Uri F, Kreis W Journal article, Original article Progesterone 5β-reductase of Erysimum crepidifolium: cDNA cloning, expression in Escherichia coli, and reduction of enones with the recombinant protein (2011) Bauer P, Müller-Uri F, Kreis W, Burda E, Munkert J Journal article, Original article Highly conserved progesterone 5β-reductase (P5βR) genes, from 5β-cardenolide-free and 5β-cardenolide-producing angiosperms. (2010) Bauer P, Munkert J, Brydziun M, Burda E, Müller-Uri F, Gröger H, Muller Y, Kreis W Journal article, Original article