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| Names | |
|---|---|
| Preferred IUPAC name (84R)-65,75-Dimethyl-84,85-dihydro-1(2,4),2,3,4,5,6,7(4,2)-heptakis([1,3]oxazolo)-8(2,4)-[1,3]thiazolocyclooctaphane | |
| Identifiers | |
| 3D model (JSmol) | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| KEGG | |
|  PubChem CID | |
|  CompTox Dashboard (EPA) | |
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| Properties | |
| C26H14N8O7S | |
| Molar mass | 582.51 g·mol−1 | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Telomestatin is a macrocyclic chemical compound that acts by inhibiting the telomerase activity of in vitro cancer cells. [1] It was first isolated from the bacteria Streptomyces anulatus . [1] Telomestatin induces the formation of basket-type G-quadruplex (G4) structures from hybrid-type G-quadruplexes in the telomeric region. Upon formation of G4 structure there will be a decrease in the activity of the telomerase, which is involved in the replication of the telomeres and as a result the cell dies due to Hayflick type senescence.[ citation needed ]