182515
Arp2/3 Complex Inhibitor I, CK-666
Arp2/3 Complex Inhibitor I, CK-666, CAS 442633-00-3, is a cell-permeable selective inhibitor of actin assembly mediated by actin-related protein Arp2/3 complex (IC50 = 4 uM in human).
Synonym(s):
Arp2/3 Complex Inhibitor I, CK-666, 2-Fluoro-N-(2-(2-Methyl-1H-indol-3-yl)ethyl)benzamide, CK-0944666, Actin Assembly Inhibitor XIII, Actin Assembly Inhibitor XIII, 2-Fluoro-N-(2-(2-Methyl-1H-indol-3-yl)ethyl)benzamide, CK-0944666
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About This Item
Empirical Formula (Hill Notation):
C18H17FN2O
CAS Number:
Molecular Weight:
296.34
MDL number:
UNSPSC Code:
12352200
Recommended Products
Quality Level
Assay
≥95% (HPLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
protect from light
color
off-white
solubility
DMSO: 50 mg/mL
shipped in
ambient
storage temp.
2-8°C
InChI
1S/C18H17FN2O/c1-12-13(14-6-3-5-9-17(14)21-12)10-11-20-18(22)15-7-2-4-8-16(15)19/h2-9,21H,10-11H2,1H3,(H,20,22)
InChI key
UXRKUKRXVWJFER-UHFFFAOYSA-N
General description
A cell-permeable indolyl-fluorobenzamide compound that selectively inhibits actin assembly mediated by actin-related protein Arp2/3 complex of human, bovine, fission yeast S. pombe, and budding yeast S. cerevisiae origin (IC50 = 4, 17, 5, and 12 µM, respectively), without affecting S. pombe formin domain Cdc12(FH2)-mediated or the spontaneous actin polymerization. Shown to inhibit the actin filament "comet tails" formation around intracellular Listeria in infected SKOV3 cells (IC50 = 7 µM) in a reversible manner. Structrual studies indicate that CK-666 targets a pocket formed between subdomain 4 of Arp2 and subdomain 1 of Arp3, preventing Arp2/3 from shifting into an active conformation upon N-WASP-VCA binding. CK-666 and CK-869 (Cat. No. 182516) exhibit different modes of binding, resulting in their different yeast cross-reactivities. CK-689 (Cat. No. 182517) can serve as a negative control.
A cell-permeable indolyl-fluorobenzamide compound that selectively inhibits actin assembly mediated by actin-related protein Arp2/3 complex of human, bovine, fission yeast S. pombe, and budding yeast S. cerevisiae origin (IC50 = 4, 17, 5, and 12 µM, respectively), without affecting S. pombe formin domain Cdc12(FH2)-mediated or the spontaneous actin polymerization. Shown to inhibit the actin filament "comet tails" formation around intracellular Listeria in infected SKOV3 cells (IC50 = 7 µM) in a reversible manner. Structrual studies indicate that CK-666 targets a pocket formed between subdomain 4 of Arp2 and subdomain 1 of Arp3, preventing Arp2/3 from shifting into an active conformation upon N-WASP-VCA binding. CK-666 and CK-869 (Cat. No. 182516) exhibit different modes of binding, resulting in their different yeast cross-reactivities. CK-689 (Cat. No. 182517) can serve as a negative control.
Packaging
Packaged under inert gas
Warning
Toxicity: Regulatory Review (Z)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.
Other Notes
Nolen, B.J., et al. 2009. Nature460, 1031.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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