(-)-Blebbistatin
Catalog No.S7099
Molecular Weight(MW): 292.33
(-)-Blebbistatin is a cell-permeable inhibitor for non muscle myosin II ATPase with IC50 of ~2 μM in cell-free assays, does not inhibit myosin light chain kinase, inhibits contraction of the cleavage furrow without disrupting mitosis or contractile ring assembly.
2 Customer Reviews
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(C) MyoIIA inhibition by blebbistatin treatment in vivo impairs leukemia cell extravasation into the brain. One hour before B-ALL cell transfer, C57BL/6 CD45.1+ recipient mice were treated with vehicle or blebbistatin (2.5 mg/kg). Twenty-four hours after B-ALL cell transfer, the recipient mice were intravenously injected with CD19-APC antibodies and then euthanized 4 min later.
J Leukoc Biol, 2016, 143-53. (-)-Blebbistatin purchased from Selleck.
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b Densitometric quantification and representative immunoblot of TCL and CM from RASMC preincubated with blebbistatin (1.25-10 μmol/l) for 1 h before exposure to 20 μg/ml ox-LDL for 24 h. Results are presented as mean ± SEM of 3 independent experiments performed in triplicate. * p < 0.05 compared with ox-LDL alone.
J Vasc Res, 2016, 53(3-4):206-215. (-)-Blebbistatin purchased from Selleck.
Purity & Quality Control
Choose Selective ATPase Inhibitors
Biological Activity
| Description | (-)-Blebbistatin is a cell-permeable inhibitor for non muscle myosin II ATPase with IC50 of ~2 μM in cell-free assays, does not inhibit myosin light chain kinase, inhibits contraction of the cleavage furrow without disrupting mitosis or contractile ring assembly. | ||
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| Targets |
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| In vitro |
Blebbistatin, inhibits cytokinesis, alters the smooth movement of fish keratocytes and inhibits the spontaneous blebbing of a cell line lacking filamin. Blebbistatin is shown to inhibit the enzymatic activities of HMM fragments of nonmuscle myosin IIA, nonmuscle myosin IIB and of rabbit skeletal muscle myosin S1, but not smooth muscle myosin[1] Blebbistatin rapidly and reversibly inhibits Mg-ATPase activity and in vitro motility of non-muscle myosin IIA and IIB for several species, while poorly inhibiting smooth muscle myosin (IC50 = 80 μM). Blebbistatin potently inhibits Dictyostelium myosin II, but poorly inhibits Acanthamoeba myosin II. Blebbistatin does not inhibit representative myosin superfamily members from classes I, V, and X. [2] Blebbistatin does not compete with nucleotide binding to the skeletal muscle myosin subfragment-1. The inhibitor preferentially binds to the ATPase intermediate with ADP and phosphate bound at the active site, and it slows down phosphate release. Blebbistatin interferes neither with binding of myosin to actin nor with ATP-induced actomyosin dissociation. Instead, it blocks the myosin heads in a products complex with low actin affinity. [3] |
Protocol
Solubility (25°C)
| In vitro | DMSO | 58 mg/mL (198.4 mM) |
|---|---|---|
| Water | Insoluble | |
| Ethanol | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 2% DMSO+40% PEG 300+5% Tween 80+ddH2O For best results, use promptly after mixing. |
5mg/mL |
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Information
| Molecular Weight | 292.33 |
|---|---|
| Formula | C18H16N2O2 |
| CAS No. | 856925-71-8 |
| Storage | powder |
| in solvent | |
| Synonyms | N/A |
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Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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