(-)-Xestospongin C

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Cat.No. 1280 - (-)-Xestospongin C | C28H50N2O2 | CAS No. 88903-69-9
Description: Reported inhibitor of IP3-dependent Ca2+ release
Alternative Names: XeC
Chemical Name: (1R,4aR,11R,12aS,13S,16aS,23R,24aS)-Eicosahydro-5H,17H-1,23:11,13-diethano-2H,14H-[1,11]dioxacycloeicosino[2,3-b:12,13-b']dipyridine
Citations (6)

Biological Activity

Reported inhibitor of IP3-dependent Ca2+ release. Inhibits bradykinin-induced Ca2+ release in PC12 cells and attenuates PHP-induced IL-2 production in Jurkat T cells. Exhibits no effect on ryanodine receptor-mediated Ca2+ release in PC12 cells. Does not interact with the IP3 binding site. Recently shown to be an ineffective antagonist of IP3-evoked Ca2+ release in IP3 receptor expressing DT40 cells. Cell permeable.

Technical Data

M. Wt 446.71
Formula C28H50N2O2
Storage Desiccate at -20°C
CAS Number 88903-69-9
PubChem ID 9846431
Smiles [H][C@]12[C@@H](CCCCCC[C@@H]3CCN(CCC[C@H]4CCCCCC5)[C@@]4([H])O3)CCCN1CC[C@@H]5O2

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.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 0.89 2
ethanol 0.89 2

Preparing Stock Solutions

The following data is based on the product molecular weight 446.71. 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.

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Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.24 mL 11.19 mL 22.39 mL
5 mM 0.45 mL 2.24 mL 4.48 mL
10 mM 0.22 mL 1.12 mL 2.24 mL
50 mM 0.04 mL 0.22 mL 0.45 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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References are publications that support the products' biological activity.

Gafni et al (1997) Xestospongins: potent membrane permeable blockers of the inositol 1,4,5-trisphosphate receptor. Neuron 19 723 PMID: 9331361

Ozaki et al (2002) Inhibitory mechanism of xestospongin-C on contraction and ion channels in the intestinal smooth muscle. Br.J.Pharmacol. 137 1207 PMID: 12466229

Dadsetan et al (2008) Store-operated Ca2+ influx causes Ca2+ release from the intracellular Ca2+ channels that is required for T cell activation. J.Biol.Chem. 283 12512 PMID: 18316371

Saleem et al (2014) Interactions of antagonists with subtypes of inositol 1,4,5-trisphosphate (IP3) receptor. Br.J.Pharmacol. 171 3298 PMID: 24628114

If you know of a relevant reference for (-)-Xestospongin C, please let us know.

Keywords: inhibitors inhibits IP3-mediated Ca2+ release blocks endoplasmic-reticulum pump calcium channels XeC XeC General Calcium Signaling Agents

6 Citations for (-)-Xestospongin C

Citations are publications that use Tocris products. Selected citations for (-)-Xestospongin C include:

Tabatadze et al (2015) Sex Differences in Molecular Signaling at Inhibitory Synapses in the Hippocampus. J Neurosci 35 11252 PMID: 26269634

Azab et al (2015) Binding of αherpesvirus Glycoprotein H to Surface α4β1-Integrins Activates Calcium-Signaling Pathways and Induces Phosphatidylserine Exposure on the Plasma Membrane. Endocrinology 6 PMID: 26489864

Oh et al (2015) Heterosynaptic structural plasticity on local dendritic segments of hippocampal CA1 neurons. FASEB J 10 162 PMID: 25558061

Glanowska and Moenter (2015) Differential regulation of GnRH secretion in the preoptic area (POA) and the median eminence (ME) in male mice. Cell Rep 156 231 PMID: 25314270

Nordman and Kabbani (2014) Microtubule dynamics at the growth cone are mediated by α7 nicotinic receptor activation of a Gαq and IP3 receptor pathway. J Neurosci 28 2995 PMID: 24687992

Xu et al (2011) The human immunodeficiency virus coat protein gp120 promotes forward trafficking and surface clustering of NMDA receptors in membrane microdomains. Am J Physiol Renal Physiol 31 17074 PMID: 22114277

Do you know of a great paper that uses (-)-Xestospongin C from Tocris? If so please let us know.

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