5beta-Pregnane-3,20-dione
(5beta)-pregnane-3,20-dione, also known as 3,20-pregnanedione or 5beta-dihydroprogesterone, belongs to gluco/mineralocorticoids, progestogins and derivatives class of compounds. Those are steroids with a structure based on a hydroxylated prostane moiety. Thus, (5beta)-pregnane-3,20-dione is considered to be a steroid lipid molecule (5beta)-pregnane-3,20-dione is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). (5beta)-pregnane-3,20-dione can be found in a number of food items such as opium poppy, walnut, rowal, and italian sweet red pepper, which makes (5beta)-pregnane-3,20-dione a potential biomarker for the consumption of these food products.
| ID | EC Number | Name |
|---|---|---|
| KEGG:R02215 | 1.3.99.6 | 5beta-pregnane-3,20-dione:(acceptor) delta4-oxidoreductase |
| KEGG:R02219 | 1.3.1.3 | 3-oxo-5beta-steroid:NADP+ delta4-oxidoreductase; |
| KEGG:R04845 | 1.1.1.50 | 3alpha-hydroxy-5beta-pregnane-20-one:NAD+ oxidoreductase (B-specific) |
| KEGG:R04846 | 1.1.1.50 | 3alpha-hydroxy-5beta-pregnane-20-one:NADP+ oxidoreductase (B-specific) |
| KEGG:R06166 | 1.1.1.277 | 3beta-hydroxy-5beta-steroid:NADP+ 3-oxidoreductase |
| Rhea:RHEA:22945 | 1.1.1.277 | 3β-hydroxy-5β-pregnane-20-one + NADP+ => 5β-pregnan-3,20-dione + NADPH + H+ |
| Rhea:RHEA:22946 | 1.1.1.277 | 5β-pregnan-3,20-dione + NADPH + H+ => 3β-hydroxy-5β-pregnane-20-one + NADP+ |
| Rhea:RHEA:22947 | 1.1.1.277 | 3β-hydroxy-5β-pregnane-20-one + NADP+ <=> 5β-pregnan-3,20-dione + NADPH + H+ |
| Rhea:RHEA:42169 | 20α-hydroxy-5β-pregnan-3-one + NADP+ => 5β-pregnan-3,20-dione + NADPH + H+ | |
| Rhea:RHEA:42170 | 5β-pregnan-3,20-dione + NADPH + H+ => 20α-hydroxy-5β-pregnan-3-one + NADP+ | |
| Rhea:RHEA:42171 | 20α-hydroxy-5β-pregnan-3-one + NADP+ <=> 5β-pregnan-3,20-dione + NADPH + H+ | |
| Rhea:RHEA:46661 | progesterone + NADPH + H+ => 5β-pregnan-3,20-dione + NADP+ | |
| Rhea:RHEA:46662 | 5β-pregnan-3,20-dione + NADP+ => progesterone + NADPH + H+ | |
| Rhea:RHEA:46663 | progesterone + NADPH + H+ <=> 5β-pregnan-3,20-dione + NADP+ | |
| Rhea:RHEA:69017 | 3α-hydroxy-5β-pregnan-20-one + NADP+ => 5β-pregnan-3,20-dione + NADPH + H+ | |
| Rhea:RHEA:69018 | 5β-pregnan-3,20-dione + NADPH + H+ => 3α-hydroxy-5β-pregnan-20-one + NADP+ | |
| Rhea:RHEA:69019 | 3α-hydroxy-5β-pregnan-20-one + NADP+ <=> 5β-pregnan-3,20-dione + NADPH + H+ |