3β-Hydroxysteroid dehydrogenase/Δ5-4 isomerase (3β-HSD) is an enzyme that catalyzes the biosynthesis of the steroid progesterone from pregnenolone, 17α-hydroxyprogesterone from 17α-hydroxypregnenolone, and androstenedione from dehydroepiandrosterone (DHEA) in the adrenal gland. It is the only enzyme in the adrenal pathway of corticosteroid synthesis that is not a member of the cytochrome P450 family. It is also present in other steroid-producing tissues, including the ovary, testis and placenta. In humans, there are two 3β-HSD isozymes encoded by the HSD3B1 and HSD3B2 genes.
Stemarene is a diterpene hydrocarbon can be produced biosynthetically through enzyme extracts from rice.
Acetoacetyl CoA is the precursor of HMG-CoA in the mevalonate pathway, which is essential for cholesterol biosynthesis. It also takes a similar role in the ketone bodies synthesis (ketogenesis) pathway of the liver. In the ketone bodies digestion pathway, it is no longer associated with having HMG-CoA as a product or as a reactant.
In enzymology, a 3beta-hydroxy-5beta-steroid dehydrogenase (EC 1.1.1.277) is an enzyme that catalyzes the chemical reaction
Glycogen synthase kinase-3 beta, (GSK-3 beta), is an enzyme that in humans is encoded by the GSK3B gene. In mice, the enzyme is encoded by the Gsk3b gene. Abnormal regulation and expression of GSK-3 beta is associated with an increased susceptibility towards bipolar disorder.
In enzymology, an ent-copalyl diphosphate synthase is an enzyme that catalyzes the chemical reaction:
The enzyme amorpha-4,11-diene synthase (ADS) catalyzes the chemical reaction
Momilactone B is an allelopathic agent produced from the roots of rice. It has been shown to be produced in high concentrations by the roots of rice seedlings. The production of momilactone B has also been induced in response to infection by blast fungus or irradiated with UV light. More recently it has been shown to be a potential chemotherapeutic agent against human colon cancer.
Methylsterol monooxygenase (EC 1.14.13.72, methylsterol hydroxylase, 4-methylsterol oxidase, 4,4-dimethyl-5alpha-cholest-7-en-3beta-ol,hydrogen-donor:oxygen oxidoreductase (hydroxylating)) is an enzyme with systematic name 4,4-dimethyl-5alpha-cholest-7-en-3beta-ol,NAD(P)H:oxygen oxidoreductase (hydroxylating). This enzyme catalyses the following chemical reaction
9beta-pimara-7,15-diene oxidase (EC 1.14.13.144, CYP99A3) is an enzyme with systematic name 9beta-pimara-7,15-diene,NADPH:oxygen 19-oxidoreductase. This enzyme catalyses the following chemical reaction
Nitric-oxide synthase (NAD(P)H-dependent) (EC 1.14.14.47, nitric oxide synthetase, NO synthase) is an enzyme with systematic name L-arginine,NAD(P)H:oxygen oxidoreductase (nitric-oxide-forming). This enzyme catalyses the following chemical reaction
ent-Cassa-12,15-diene synthase is an enzyme with systematic name ent-copalyl-diphosphate diphosphate-lyase (ent-cassa-12,15-diene-forming). This enzyme catalyses the following chemical reaction
ent-Sandaracopimaradiene synthase is an enzyme with systematic name ent-copalyl-diphosphate diphosphate-lyase [ent-sandaracopimara-8(14),15-diene-forming]. This enzyme catalyses the following chemical reaction
ent-Pimara-8(14),15-diene synthase is an enzyme with systematic name ent-copalyl-diphosphate diphosphate-lyase [ent-pimara-8(14),15-diene-forming]. This enzyme catalyses the following chemical reaction
ent-Pimara-9(11),15-diene synthase is an enzyme with systematic name ent-copalyl-diphosphate diphosphate-lyase . This enzyme catalyses the following chemical reaction
Stemar-13-ene synthase is an enzyme with systematic name 9α-copalyl-diphosphate diphosphate-lyase (stemar-13-ene-forming). This enzyme catalyses the following chemical reaction
syn-Pimara-7,15-diene synthase is an enzyme with systematic name 9α-copalyl-diphosphate diphosphate-lyase (9β-pimara-7,15-diene-forming). This enzyme catalyses the following chemical reaction
Isopimara-7,15-diene synthase is an enzyme with systematic name (+)-copalyl diphosphate-lyase (isopimara-7,15-diene-forming). This enzyme catalyses the following chemical reaction
Syn-copalyl-diphosphate synthase is an enzyme with systematic name 9alpha-copalyl-diphosphate lyase (decyclizing). This enzyme catalyses the following chemical reaction
18-Hydroxy-11-deoxycorticosterone is an endogenous steroid and a mineralocorticoid. It is a hydroxylated metabolite of 11-deoxycorticosterone.
