Cat. No. 4210
Alternative Names: FK 520, FR 900520
Chemical Name: (3S,4R,5S,8R,9E,12S,14S,15R,16S,18R
Biological ActivityAnalog of FK 506 (Cat. No. 3631); binds to FK 506-binding protein 12 (FKBP12) in order to inhibit calcineurin phosphatase activity (IC50 = 49 nM) and activation of nuclear factor of activated T cells (NFAT). Displays antifungal and immunosuppressive activities.
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
Certificate of Analysis / Product Datasheet / Safety Data Sheet
Revill et al (2002) Genetically engineered analogs of ascomycin for nerve regeneration. J.Pharmacol.Exp.Ther. 302 1278. PMID: 12183690.
Arndt et al (1999) Secretion of FK506/FK520 and rapamycin by Streptomyces inhibits the growth of competing Saccharomyces cerevisiae and Cryptococcus neoformans. Microbiology 145 1989. PMID: 10463165.
Motamedi et al (1996) Characterization of methyltransferase and hydroxylase genes involved in the biosynthesis of the immunosuppressants FK506 and FK520. J.Bacteriol. 178 5243. PMID: 8752344.
Hatanaka et al (1988) FR-900520 and FR-900523, novel immunosuppressants isolated from a Streptomyces. II. Fermentation, isolation and physicochemical and biological characteristics. J.Antibiot (Tokyo). 41 1593.
If you know of a relevant reference for this product please let us know.
Citations are publications that use Tocris products.
Do you know of a great paper that uses Ascomycin from Tocris? If so please let us know.
View Related Products by Target
View Related Products by Product Action
Keywords: Ascomycin, supplier, FK520, FR900520, Ascomycin, calcineurin, phosphatase, inhibitors, inhibits, analogs, FK, 506, fkbp12, immunosuppressives, antifungals, antibiotics, Tocris Bioscience, Protein Ser/Thr Phosphatases Inhibitor products