3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||766.966 g·mol−1|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Tautomycin is a chemical that occurs naturally in shellfish and is produced by the bacterium Streptomyces spiroverticillatus. It is a polyketide-based structure characterized by a three hydroxyl groups, two ketones, a dialkylmaleic anhydride, an ester linkage (connecting anhydride unit to polyketide chain), a spiroketal and one methyl ether among others.
It is a very potent inhibitor of the protein phosphatases PP1 and PP2A. Tautomycin demonstrates a slight preference for PP1 inhibition relative to PP2A inhibition. Tautomycin is closely related to another anhydride containing polyketide PP inhibitor called tautomycetin which, in addition to being useful as a lead for cancer drug discovery, also is a very potent immunosuppressor. The mechanism of immunosuppression by Tautomycetin differs from that of more classical immunosuppressors such as rapamycin and tacrolimus.
- Suganuma, Masami; Okabe, Sachiko; Sueoka, Eisaburo; Nishiwaki, Rie; Komori, Atsumasa; Uda, Naoto; Isono, Kiyoshi; Fujiki, Hirota (1995). "Tautomycin: An inhibitor of protein phosphatases 1 and 2A but not a tumor promoter on mouse skin and in rat glandular stomach". Journal of Cancer Research and Clinical Oncology. 121 (9–10): 621–627. doi:10.1007/bf01197780. PMID 7559747. S2CID 739519.