Classification Term: 1563
Prenylquinones (ontology term: CHEMONTID:0002802)
Quinones with a structure characterized by the quinone ring substituted by an prenyl side-chain." []
found 6 associated metabolites at category metabolite taxonomy ontology rank level.
Ancestor: Quinone and hydroquinone lipids
Child Taxonomies: Polyprenylbenzoquinones, Ubiquinones
Plastoquinone
Plastoquinone is a member of the class of compounds known as prenylquinones. Prenylquinones are quinones with a structure characterized by the quinone ring substituted by an prenyl side-chain. Plastoquinone is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Plastoquinone can be found in barley, which makes plastoquinone a potential biomarker for the consumption of this food product. Plastoquinone (PQ) is an isoprenoid quinone molecule involved in the electron transport chain in the light-dependent reactions of photosynthesis. The most common form of plastoquinone, known as PQ-A or PQ-9, is a 2,3-dimethyl-1,4-benzoquinone molecule with a side chain of nine isoprenyl units. There are other forms of plastoquinone, such as ones with shorter side chains like PQ-3 (which has 3 isoprenyl side units instead of 9) as well as analogs such as PQ-B, PQ-C, and PQ-D, which differ in their side chains. The benzoquinone and isoprenyl units are both nonpolar, anchoring the molecule within the inner section of a lipid bilayer, where the hydrophobic tails are usually found .
2-Polyprenyl-3-methyl-6-methoxy-1,4-benzoquinone
This compound belongs to the family of Sesquiterpenes. These are terpenes with three consecutive isoprene units.
2-Polyprenyl-6-methoxy-1,4-benzoquinone
This compound belongs to the family of Prenylquinones. These are quinones whose structure is charaterized by the quinone ring substitued by an prenyl side-chain.
4,4'-Dihydroxy-5,5'-diisopropyl-2,2'-dimethyl-3,6-biphenyldione
4,4-Dihydroxy-5,5-diisopropyl-2,2-dimethyl-3,6-biphenyldione is found in herbs and spices. 4,4-Dihydroxy-5,5-diisopropyl-2,2-dimethyl-3,6-biphenyldione is a constituent of the leaves of thyme Thymus vulgaris. Shows antioxidant activity. Constituent of the leaves of thyme Thymus vulgaris. Shows antioxidant activity. 4,4-Dihydroxy-5,5-diisopropyl-2,2-dimethyl-3,6-biphenyldione is found in herbs and spices.
Enokipodin D
Enokipodin D is found in mushrooms. Enokipodin D is a constituent of Flammulina velutipes (velvet shank). Constituent of Flammulina velutipes (velvet shank). Enokipodin D is found in mushrooms.