Comparison

alpha-Conotoxin SI European Partner

Item no. ALO-STC-825-5mg
Manufacturer Alomone
CASRN 115797-06-3
Amount 5 mg
Quantity options 0.1 mg 0.5 mg 10 mg 1 mg 50 ug 5 mg
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 ICCNPACGPKYSC-NH<sub>2</sub>
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
Muscle nAChR
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
1353.6 Da
Manufacturer - Format
Lyophilized
Short description
A Potent Antagonist of Muscular α1/β1/δ/γ nAChR
Description
Alpha-conotoxin S1, SI - A Potent Antagonist of Muscular α1/β1/δ/γ nAChR
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 Potent Antagonist of Muscular α1/β1/δ/γ nAChR

PH
7, 4
UNSPSC
12352202
Origin
Conus striatus (Striated cone)
Modifications

Disulfide bonds between: Cys2-Cys7, Cys3-Cys13

Cys13 - C-terminal amidation

Effective Concentration
200 nM - 1 µM
Activity
α-Conotoxin SI inhibits muscle type α1/β1/δ/γ nicotinic acetylcholine receptors (nAChRs) at 200-1000 nM1 .
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
α-Conotoxin SI is a 13-amino acid residue peptide toxin originally isolated from Conus striatus venoM The toxin's structure is stabilized by six hydrogen bonds and disulfides between cysteine residues 2 and 7 and 3 and 131. It is a potent and selective antagonist of α1/β1/δ/γ nicotinic acetylcholine receptors (nAChRs).Nicotinic acetylcholine receptors are ionotropic multi-subunit, neurotransmitter-gated receptors of the cholinergic systeM They are responsible for mediating the effects of the neurotransmitter acetylcholine (ACh). nAChRs are assembled from one or more α subunits (α1-α10) alone or together with one or more β subunits (β1-β4)2.

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: 5 mg
Available: In stock
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