Comparison

Kurtoxin European Partner

Item no. ALO-STK-800-25ug
Manufacturer Alomone
CASRN 820959-57-7
Amount 25 ug
Quantity options 0.1 mg 0.5 mg 25 ug 50 ug
Category
Type Molecules
Format Lyophilized
Specific against other
Purity ≥98% (HPLC)
Formula Lyophilized from double distilled water (ddH2O). May contain TFA as a residual counter ion.
Sequence KIDGYPVDYWNCKRICWYNNKYCNDLCKGLKADSGYCWGWTLSCYCQGLPDNARIKRSGRCRA-OH
ECLASS 10.1 32169090
ECLASS 11.0 32169090
UNSPSC 12000000
Shipping Condition Room temperature
Available
Manufacturer - Type
Non Antibodies
Manufacturer - Applications
Electrophysiology
Manufacturer - Category
Proteins
Manufacturer - Targets
CaV3.1, CaV3.2 channels
Country of Origin
Israel
Shipping Temperature
The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture.
Storage Conditions
Storage as Solution: 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. - Storage before Reconstitution: The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture. - Storage after Reconstitution: 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.
Molecular Weight
7386.5 Da
Manufacturer - Format
Lyophilized
Short description
A Selective and Potent Blocker of CaV3.1 and CaV3.2 Channels
Description
Ktx - A Selective and Potent Blocker of CaV3.1 and CaV3.2 Channels
Reconstitution
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.
Specificity

A Selective and Potent Blocker of CaV3.1 and CaV3.2 Channels

PH
7, 4
UNSPSC
12352202
Origin
Parabuthus transvaalicus (South African fattail scorpion)
Modifications
Disulfide bonds between: Cys12-Cys61, Cys16-Cys37, Cys23-Cys44, and Cys27-Cys46
Effective Concentration
10 - 200 nM
Activity
Kurtoxin is a CaV3.1 and CaV3.2 channel blocker1, 2.
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 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.
Sterile endotoxin free
no
Bioassay tested
yes
Scientific Background
Kurtoxin is a peptide toxin originally isolated from the South African scorpion (Parabuthus transvaalicus) venom, and was the first characterized ligand for low voltage-gated calcium channels1, 2. Kurtoxin potently blocks CaV3.1 and CaV3.2 channels displaying effective working concentrations as low as 50 nMAlthough Kurtoxin is very similar to other scorpion isolated toxins (also known as α-toxins) that target sodium channels, detailed NMR analyses uncovered a unique configuration that distinguishes it from α-toxins and, therefore, is believed to be essential for Kurtoxin's binding ability3.CaV3.1 and CaV3.2 are members of the T-type calcium channels that regulate calcium intake near resting membrane potential1. Members of the CaV3 ion channels control cardiac pacemaking, but may also play a role outside the nervous system as predicted by their overall distribution in the body1.

Note: The presented information and documents (Manual, Product Datasheet, Safety Datasheet and Certificate of Analysis) correspond to our latest update and should serve for orientational purpose only. We do not guarantee the topicality. We would kindly ask you to make a request for specific requirements, if necessary.

All products are intended for research use only (RUO). Not for human, veterinary or therapeutic use.

Amount: 25 ug
Available: In stock
available

Delivery expected until 1/8/2026 

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