Inhibitor of checkpoint kinase 1 (Chk1) that displays selectivity over other protein kinases (IC50 values are 15, 250 and 1000 nM for Chk1, cdc2 and PKC respectively). Abrogates G2 cell cycle arrest caused by γ-irradiation and topoisomerase I inhibition. Potentiates cytotoxicity of DNA-damaging drugs, enhancing the efficacy of some chemotherapeutics.
|Storage||Store at RT|
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.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 393.39. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||2.54 mL||12.71 mL||25.42 mL|
|5 mM||0.51 mL||2.54 mL||5.08 mL|
|10 mM||0.25 mL||1.27 mL||2.54 mL|
|50 mM||0.05 mL||0.25 mL||0.51 mL|
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.
References are publications that support the products' biological activity.
Jackson et al (2000) An indolocarbazole inhibitor of human checkpoint kinase (Chk1) abrogates cell cycle arrest caused by DNA damage. Cancer Res. 60 566 PMID: 10676638
Kawabe (2004) G2 checkpoint abrogators as anticancer drugs. Mol.Cancer Ther. 3 513 PMID: 15078995
Chen et al (2006) Checkpoint kinase 1-mediated phosphorylation of cdc25C and bad proteins are involved in antitumor effects of loratadine-induced G2/M phase cell-cycle arrest and apoptosis. Mol.Carcinogenesis 45 461 PMID:
If you know of a relevant reference for SB 218078, please let us know.
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Keywords: inhibitors inhibits checkpoint kinase 1 Chk1 Chk2 Checkpoint Kinases Control SB218078 Checkpoint Kinases
3 Citations for SB 218078
Citations are publications that use Tocris products. Selected citations for SB 218078 include:
Colin et al (2015) Cellular responses to a prolonged delay in mitosis are determined by a DNA damage response controlled by Bcl-2 family proteins. PLoS One 5 140156 PMID: 25761368
Fard et al (2013) The heterogenic final cell cycle of chicken retinal Lim1 horizontal cells is not regulated by the DNA damage response pathway. Cell Cycle 13 408 PMID: 24247150
Ward et al (2012) Host modulators of H1N1 cytopathogenicity. PLoS One 7 e39284 PMID: 22876275
Do you know of a great paper that uses SB 218078 from Tocris? If so please let us know.
Literature in this Area
Cell Cycle & DNA Damage Repair Poster
In normal cells, each stage of the cell cycle is tightly regulated, however in cancer cells many genes and proteins that are involved in the regulation of the cell cycle are mutated or over expressed. Adapted from the 2015 Cancer Product Guide, Edition 3, this poster summarizes the stages of the cell cycle and DNA repair. It also highlights strategies for enhancing replicative stress in cancer cells to force mitotic catastrophe and cell death.