Pseudopterosin biosynthesis-pathway elucidation, ...
|Title||Pseudopterosin biosynthesis-pathway elucidation, enzymology, and a proposed production method for anti-inflammatory metabolites from Pseudopterogorgia elisabethae|
|Author(s)||A. C. Kohl, A. Ata, Russell G. Kerr|
|Journal||Journal of Industrial Microbiology & Biotechnology|
|Abstract||The pseudopterosins are a family of diterpene pentosides isolated from the marine octocoral, Pseudopterogorgia elisabethae. These compounds possess non-steroidal anti-inflammatory and analgesic properties which have been shown to be greater than the industry standard, indomethacin. In our investigations, we are interested in examining the biosynthesis and enzymology of these compounds for the development of a biotechnological production method. We have isolated the pseudopterosin diterpene cyclase product, elisabethatriene, using a radioactivity-guided isolation. This has provided us with an assay to isolate the diterpene cyclase enzyme. The amino acid sequence of the purified diterpene cyclase will facilitate cloning and expression of the gene in a suitable host. In addition, we have identified over 25 novel diterpenes from one of our collections of P. elisabethae. Several of these compounds appear to be involved in pseudopterosin biosynthesis and are presently being evaluated as potential intermediates. These compounds have also been evaluated for anti-inflammatory activity and some possess greater activity than that of the pseudopterosins. We therefore propose a production method utilizing a combination of recombinant enzyme technology and synthetic methods/biocatalysis in order to produce one or more anti-inflammatory metabolites in P. elisabethae.|
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