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==Design of Tri-terpene ID numbers ID番号の設計== | ==Design of Tri-terpene ID numbers ID番号の設計== | ||
Revision as of 11:52, 3 August 2010
Triterpene (C30) Biosynthesis
Triterpenes are formed by joining two FPPs tail-to-tail. The precursor compound of cholesterol (C27) is lanosterol (C30) for animals. For plants, fungi and algae, it is almost cycloartenol with a trace of lanosterol-derived sterols[1].
Phytosterols
Most common phytosterols are campesterol, β-sitosterol, and stigmasterol. Soybean (Glycine max, Fabaceae) is a rich source of phytosterols (about 0.1% of its weight), and is used for semi-synthesis of medicinal steroids [2]. Since dietary phytosterols reduce cholesterol levels, they are used as food additives such as for margarine [3]. Vitamin D is a family of sterol metabolites generated photochemically in our skin by UV irradiation.
Design of Tri-terpene ID numbers ID番号の設計
12-DIGIT
| T | P | 3 | x | y | y | r | h | g | n | c | c |
- x ... species information
| Symbol at x | Kingdom | Phyla | Examples |
|---|---|---|---|
| I | Animalia | Arthropoda (Insects, crabs) | ecdysteroids |
| V | Chordate (Vertebrates) | sex steroids, corticosteroids, anabolic steroids | |
| O | Others | marine steroids | |
| P | Plantae | Phytosterols | lanosterols, cholesterols, brassinolides |
| S | Saponins | saponins | |
| F | Fungi | ergosterols | ergosterols |
| B | Bacteria | bacterial sterols | hopanoids |
- y ... backbone structure (母核構造)
|
|
- r ... number of major rings (環構造数)
Click above categories to see details.
- h ... hydroxylation pattern (水酸基数)
Click above categories to see details.
- g ... glycosylation pattern(糖修飾パターン)
Click above categories to see details.
- n ... number of sugars (修飾糖数)
Click above categories to see details.
- c ... serial number (通し番号)
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