SCH900776 S-isomer
| CAS号 | 891494-64-7 | 货号 | BCP06478 |
| 中文名 | SCH900776 S-isomer | ||
| 英文名 | SCH900776 S-isomer | ||
| 中文别名 | |||
| 英文别名 | SCH 900776;SCH-900776;MK-8776;MK 8776;MK8776; | ||
| 分子式 | C15H18BrN7 | 分子量 | 376.25 |
| 生物活性 | SCH900776 S-isomer is the S-isomer of SCH900776.SCH 900776 is a less potent inhibitor of Chk2 and CDK2 with IC50 of 1.5 μM and 0.16 μM, respectively. SCH 900776 shows no significant inhibition of cytochrome P450 human liver microsomal isoforms 1A2, 2C9, 2C19, 2D6, and 3A4. SCH 900776 induces a dose-dependent loss of DNA replication capability 24 hours after hydroxyurea exposure. SCH 900776 enhances the γ-H2AX response of hydroxyurea, 5-fluoruracil, and cytarabine. In combination with an antimetabolite, SCH 900776 induces accumulation of γ-H2AX within 2 hours, indicative of replication fork collapse and double stranded DNA breaks. Additionally, SCH 900776 suppresses accumulation of the Chk1 pS296 autophosphorylation in a dose-dependent manner. Exposure of proliferating WS1 cells to SCH 900776 is associated with rapid, dose-dependent accumulation of Chk1 pS345, indicating that cycling populations of normal cells induce Chk1 pS345 following exposure to SCH 900776 as part of a futile cycle, perhaps driven by AT-family kinases and DNA-PK | ||
| 信号通路 | Cell Cycle/DNA Damage | ||
| 靶 点 | Checkpoint | ||
结构式
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