hopane triterpenoid
Also known as hopanes, hopanoids, hopanoid
alt=|thumb|377x377px|Some representative hopanoids: A. Diploptene, also called 22(29)-hopene B. Diplopterol, also called hopan-22-ol, the hydrated cyclomer of diploptene C. Bacteriohopanetetrol (BHT), a common extended hopanoid D. Hopane, the diagenetic product of A and B that results from reducing conditions during deposition and persists in the rock record. The diagenetic product of C would be an extended C35 hopane.Hopanoids are a diverse subclass of triterpenoids with the same hydrocarbon skeleton as the compound hopane. This group of pentacyclic molecules therefore refers to simple hopene
Article
17 sectionsContents
- Biological function
- Biosynthesis
- Squalene synthesis
- Cyclization
- Functionalization
- In paleobiology
- 2-methylhopanoids
- As a biomarker for cyanobacteria
- Proposal
- Dispute
- Other interpretations
- 3-methylhopanoids
- Applications
- Industry
- Agriculture
- Medicine
- References
alt=|thumb|377x377px|Some representative hopanoids: A. Diploptene, also called 22(29)-hopene B. Diplopterol, also called hopan-22-ol, the hydrated cyclomer of diploptene C. Bacteriohopanetetrol (BHT), a common extended hopanoid D. Hopane, the diagenetic product of A and B that results from reducing conditions during deposition and persists in the rock record. The diagenetic product of C would be an extended C35 hopane.Hopanoids are a diverse subclass of triterpenoids with the same hydrocarbon skeleton as the compound hopane. This group of pentacyclic molecules therefore refers to simple hopenes, hopanols and hopanes, but also to extensively functionalized derivatives such as bacteriohopanepolyols (BHPs) and hopanoids covalently attached to lipid A.
The first known hopanoid, hydroxyhopanone, was isolated by two chemists at The National Gallery, London working on the chemistry of dammar gum, a natural resin used as a varnish for paintings. While hopanoids are often assumed to be made only in bacteria, their name actually comes from the abundance of hopanoid compounds in the resin of plants from the genus Hopea. In turn, this genus is named after John Hope, the first Regius Keeper of the Royal Botanic Garden, Edinburgh.