Tautomycin

Tautomycin
Names
	IUPAC name [(1R,2R,3R,6S,7S,10R)-10-[(2S,3S,6R,8S,9R)-3,9-Dimethyl-8-[(3S)-3-methyl-4-oxo-pentyl]-1,7-dioxaspiro[5.5]undecan-2-yl]-3,7-dihydroxy-1-isopropyl-2-methoxy-6-methyl-5-oxo-undecyl] (3R)-3-hydroxy-3-(4-methyl-2,5-dioxo-3-furyl)propanoate
Identifiers
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL505512 ;
ChemSpider	389529 ;
ECHA InfoCard	100.149.857
PubChem CID	440646;
	InChI InChI=1S/C41H66O13/c1-21(2)36(51-34(47)20-31(45)35-27(8)39(48)52-40(35)49)38(50-10)32(46)19-30(44)26(7)29(43)13-11-24(5)37-25(6)16-18-41(54-37)17-15-23(4)33(53-41)14-12-22(3)28(9)42/h21-26,29,31-33,36-38,43,45-46H,11-20H2,1-10H3/t22-,23+,24+,25-,26-,29-,31+,32+,33-,36+,37-,38+,41+/m0/s1 Key: RFCWHQNNCOJYTR-IRCAEPKSSA-N ; InChI=1S/C41H66O13/c1-21(2)36(51-34(47)20-31(45)35-27(8)39(48)52-40(35)49)38(50-10)32(46)19-30(44)26(7)29(43)13-11-24(5)37-25(6)16-18-41(54-37)17-15-23(4)33(53-41)14-12-22(3)28(9)42/h21-26,29,31-33,36-38,43,45-46H,11-20H2,1-10H3/t22-,23+,24+,25-,26-,29-,31+,32+,33-,36+,37-,38+,41+/m0/s1; InChI=1S/C41H66O13/c1-21(2)36(51-34(47)20-31(45)35-27(8)39(48)52-40(35)49)38(50-10)32(46)19-30(44)26(7)29(43)13-11-24(5)37-25(6)16-18-41(54-37)17-15-23(4)33(53-41)14-12-22(3)28(9)42/h21-26,29,31-33,36-38,43,45-46H,11-20H2,1-10H3/t22-,23+,24+,25-,26-,29-,31+,32+,33-,36+,37-,38+,41+/m0/s1 Key: RFCWHQNNCOJYTR-IRCAEPKSSA-N;
	SMILES O=C\1OC(=O)/C(=C/1C)[C@H](O)CC(=O)O[C@H](C(C)C)[C@H](OC)[C@H](O)CC(=O)[C@@H](C)[C@@H](O)CC[C@H]([C@@H]3O[C@@]2(O[C@H]([C@H](C)CC2)CC[C@@H](C(=O)C)C)CC[C@@H]3C)C;
Properties
Chemical formula	C41H66O13
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).
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	Infobox references

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.

Pharmacology

It is a very potent inhibitor of the protein phosphatases PP1 and PP2A.[1] 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.

References

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.

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[1] 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.