product summary
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company name :
Alomone Labs
product type :
chemical
product name :
QX-314 chloride
catalog :
Q-150
more info or order :
citations: 46
Reference |
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Gunn B, Cunningham L, Cooper M, Corteen N, Seifi M, Swinny J, et al. Dysfunctional astrocytic and synaptic regulation of hypothalamic glutamatergic transmission in a mouse model of early-life adversity: relevance to neurosteroids and programming of the stress response. J Neurosci. 2013;33:19534-54 pubmed publisher
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Vikman K, Rycroft B, Christie M. Switch to Ca2+-permeable AMPA and reduced NR2B NMDA receptor-mediated neurotransmission at dorsal horn nociceptive synapses during inflammatory pain in the rat. J Physiol. 2008;586:515-27 pubmed
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Abrahamsson T, Gustafsson B, Hanse E. Reversible synaptic depression in developing rat CA3 CA1 synapses explained by a novel cycle of AMPA silencing-unsilencing. J Neurophysiol. 2007;98:2604-11 pubmed
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Fujiwara Tsukamoto Y, Isomura Y, Imanishi M, Fukai T, Takada M. Distinct types of ionic modulation of GABA actions in pyramidal cells and interneurons during electrical induction of hippocampal seizure-like network activity. Eur J Neurosci. 2007;25:2713-25 pubmed
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Zhang H, Chen S, Pan H. Regulation of glutamate release from primary afferents and interneurons in the spinal cord by muscarinic receptor subtypes. J Neurophysiol. 2007;97:102-9 pubmed
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Hige T, Fujiyoshi Y, Takahashi T. Neurosteroid pregnenolone sulfate enhances glutamatergic synaptic transmission by facilitating presynaptic calcium currents at the calyx of Held of immature rats. Eur J Neurosci. 2006;24:1955-66 pubmed
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Tu B, Jiao Y, Herzog H, Nadler J. Neuropeptide Y regulates recurrent mossy fiber synaptic transmission less effectively in mice than in rats: Correlation with Y2 receptor plasticity. Neuroscience. 2006;143:1085-94 pubmed
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Boddy G, Willis A, Galante G, Daniel E. Sodium-, chloride-, and mibefradil-sensitive calcium channels in intestinal pacing in wild-type and W/WV mice. Can J Physiol Pharmacol. 2006;84:589-99 pubmed
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Karst H, Berger S, Turiault M, Tronche F, Schutz G, Joels M. Mineralocorticoid receptors are indispensable for nongenomic modulation of hippocampal glutamate transmission by corticosterone. Proc Natl Acad Sci U S A. 2005;102:19204-7 pubmed
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Abrahamsson T, Gustafsson B, Hanse E. Synaptic fatigue at the naive perforant path-dentate granule cell synapse in the rat. J Physiol. 2005;569:737-50 pubmed
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Ishikawa T, Kaneko M, Shin H, Takahashi T. Presynaptic N-type and P/Q-type Ca2+ channels mediating synaptic transmission at the calyx of Held of mice. J Physiol. 2005;568:199-209 pubmed
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Karst H, Joels M. Corticosterone slowly enhances miniature excitatory postsynaptic current amplitude in mice CA1 hippocampal cells. J Neurophysiol. 2005;94:3479-86 pubmed
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Bhaukaurally K, Panatier A, Poulain D, Oliet S. Voltage-gated Ca2+ channel subtypes mediating GABAergic transmission in the rat supraoptic nucleus. Eur J Neurosci. 2005;21:2459-66 pubmed
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Panatier A, Poulain D, Oliet S. Regulation of transmitter release by high-affinity group III mGluRs in the supraoptic nucleus of the rat hypothalamus. Neuropharmacology. 2004;47:333-41 pubmed
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Bailey S, Dhillon A, Woodhall G, Jones R. Lamina-specific differences in GABA(B) autoreceptor-mediated regulation of spontaneous GABA release in rat entorhinal cortex. Neuropharmacology. 2004;46:31-42 pubmed
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Fujiwara Tsukamoto Y, Isomura Y, Nambu A, Takada M. Excitatory GABA input directly drives seizure-like rhythmic synchronization in mature hippocampal CA1 pyramidal cells. Neuroscience. 2003;119:265-75 pubmed
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Azdad K, Piet R, Poulain D, Oliet S. Dopamine D4 receptor-mediated presynaptic inhibition of GABAergic transmission in the rat supraoptic nucleus. J Neurophysiol. 2003;90:559-65 pubmed
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Mori M, Gerber U. Slow feedback inhibition in the CA3 area of the rat hippocampus by synergistic synaptic activation of mGluR1 and mGluR5. J Physiol. 2002;544:793-9 pubmed
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Mannaioni G, Marino M, Valenti O, Traynelis S, Conn P. Metabotropic glutamate receptors 1 and 5 differentially regulate CA1 pyramidal cell function. J Neurosci. 2001;21:5925-34 pubmed
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Lupica C, Bell J, Hoffman A, Watson P. Contribution of the hyperpolarization-activated current (I(h)) to membrane potential and GABA release in hippocampal interneurons. J Neurophysiol. 2001;86:261-8 pubmed
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Zaninetti M, Raggenbass M. Oxytocin receptor agonists enhance inhibitory synaptic transmission in the rat hippocampus by activating interneurons in stratum pyramidale. Eur J Neurosci. 2000;12:3975-84 pubmed
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image
image 1 :

Alomone Labs QX-314 chloride inhibits native NaV1.5 currents expressed inXenopusoocytes. - Dose-response ofQX-314 chloride(#Q-150) inhibition on inward Na+currents. Using two electrode voltage clamps membrane potential was held at -100 mV and currents were elicited by 25 ms depolarization to -20 mV delivered every 5 sec. Left: Dose-response curve for one experiment. Right: Traces before (red) and during bath application of different concentrations of QX-314 chloride.
image 2 :

product information
CAT :
Q-150
SKU :
Q-150_1 g
Product Name :
QX-314 chloride
Group Type :
Non Antibodies
Product Type :
S. Molecules
Shipping and storage :
Shipped at room temperature. Product as supplied can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C
Product Page - Scientific background :
This local anesthetic is a blocker of voltage-dependent Na+ channels. QX-314 blocks all NaV channels once exposed to the intracellular face of the channel protein. However, this compound can penetrate the cell interior once applied outside the cell. Via certain types of NaV channels, it can permeate and exert blocking activity via TTX-sensitive channels.1 Intracellular recordings from inferior olivary neurons in brain stem slice preparations demonstrated that Na+-dependent action potentials were completely blocked for approximately five minutes after impalement with a microelectrode containing 50 mM QX-314, whereas the low-threshold Ca2+ spike was still generated.2 QX-314 is widely used to block NaV channels and used as a tool in neurophysiological recordings.2-5
Supplier :
Alomone Labs
Target :
Various NaV Na+ channels
Long Description :
QX-314 chloride (#Q-150) is a highly pure, synthetic, and biologically active compound.
Short Description :
A Local Anesthetic Blocker of NaV Channels
MW :
298.85
Synonyms :
Lidocaine N-ethyl chloride
Source :
Synthetic
Molecular formula :
C16H27N2OCl.
Effective Concentration :
1-50 mM.
Activity :
QX-314 chloride is an intracellular blocker of NaV channels1-4.
Reconstitution and Solubility :
Centrifuge the vial before adding solvent (10,000 x g for 5 minutes) to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Tap the vial to aid in dissolving the lyophilized product. Tilt and gently roll the liquid over the walls of the vial. Avoid vigorous vortexing. Light vortexing for up to 3 seconds is acceptable if needed. The product is lyophilized in 0.5 ml conical vial. The product is soluble in pure water to high-micromolar concentrations (5 µM - 1 mM). For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in double distilled water (ddH2O) at a concentration between 100-1000x of the final working concentration. Divide the stock solution into small aliquots and store at -20°C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. Centrifuge all product preparations before use. It is recommended to prepare fresh solutions in working buffers just before use. Avoid multiple freeze-thaw cycles to maintain biological activity. Avoid exposure to light.
Solubility :
Water. Centrifuge all product preparations before use (10000 x g 5 min).
Storage of solutions :
Up to two weeks at 4°C or six months at -20°C. Protect from light. Hygroscopic.
Lead Time :
1-2 Business Days
Country of origin :
Israel/IL
Applications key :
Application key: FC- Flow cytometry, IFC- Indirect flow cytometry, IHC- Immunohistochemistry,LCI- Live cell imaging, Calcium imaging assay,Cell survival assay, Electrophysiology, Neurite outgrowth assay.
Purity :
>99% (HPLC)
CAS No :
########
Form :
Lyophilized Powder
Comment :
Contact Alomone Labs for technical support and product customization
UNSPSC :
41116134
Bioassay Tested :
Yes
Cited Application :
Electrophysiology
Chemical Name :
N-(2,6-Dimethylphenylcarbamoylmethyl) triethylammonium chloride.
more info or order :
company information

Alomone Labs
Jerusalem BioPark (JBP), Hadassah Ein Kerem
P.O. Box 4287
Jerusalem 9104201
P.O. Box 4287
Jerusalem 9104201
info@alomone.com
http://www.alomone.com972 2 531 8002
headquarters: Israel
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