chemical

SNX-482

RTS-500

RTS-500_0.1 mg

SNX-482

Non Antibodies

Proteins

P56854

https://www.uniprot.org/uniprotkb/P56854/entry

Electrophysiology

Lyophilized from filtrated Ammonium acetate solution. May contain acetate as a residual counter ion.

The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.

Centrifuge the vial (10,000 × g for 5 minutes) before adding solvent 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. Gently tap, tilt, and roll the vial to aid dissolution. Avoid vigorous vortexing; light vortexing for up to 3 seconds is acceptable if needed. The product is soluble in pure water at high micromolar concentrations (100 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.

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 soluble in pure water at high micromolar concentrations (100 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.

The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture.

Hysterocrates gigas (Cameroon red baboon tarantula)

Recombinant, E. coli

CACNA1A, CACNA1E, KCND2, KCND3

SNX-482 is a peptidyl toxin originally isolated from venom of the spider Hysterocrates gigas. Native SNX-482 blocks specifically CaV2.3 (α1E, R-type) channels1 in a voltage-dependent manner. The block is reversible only upon application of strong voltage to facilitate unbinding.2 SNX-482 inhibits human CaV2.3 channels stably expressed in a mammalian cell line. An IC50 of 15-30 nM was obtained for block of CaV2.3 channel, using either patch clamp electrophysiology or K+-evoked Ca2+ flux. At low nanomolar concentrations, SNX-482 also blocked a native R-type Ca2+ current in rat neurohypophyseal nerve terminals, but concentrations of 200-500 nM had no effect on R-type Ca2+ currents in several types of rat central neurons.1 SNX-482 was also used to demonstrate the contribution of CaV2.3 channels to transmitter release.3 Recently it was shown that higher concentrations of SNX-482 also block CaV2.1 channels in chromaffin cells.4SNX-482 was found to be the most potent blocker to date for KV4.3 channel with IC50 < 3 nM5.

Alomone Labs

CaV2.3, CaV2.1, KV4.2, KV4.3 channels

A Blocker of CaV2.3 and KV4.3 Channels

A Blocker of CaV2.3 and KV4.3 Channels

4495 Da

ω-Theraphotoxin-Hg1a, ω-TRTX-Hg1a, SNX 482

Disulfide bonds between: Cys7-Cys21, Cys14-Cys26, and Cys20-Cys33

C192H274N52O60S7

10 - 100 nM

SNX-482 blocks R-type (CaV2.3) and P/Q-type (CaV2.1) voltage-gated Ca2+ channels1. It also blocks A-type K+ channels with an IC50 < 3 nM2.

The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.

1-2 Business Days

Israel/IL

≥98% (HPLC)

203460-30-4

Lyophilized

Contact Alomone Labs for technical support and product customization

GVDKAGCRYMFGGCSVNDDCCPRLGCHSLFSYCAWDLTF
SD-OH

Yes

12352202

yes

no

Electrophysiology