product summary
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company name :
Alomone Labs
product type :
chemical
product name :
µ-Conotoxin CnIIIC
catalog :
STC-640
more info or order :
image
image 1 :
Alomone Labs STC-640 image 1
Alomone Labs-Conotoxin CnIIIC inhibits NaV1.2 currents heterologously expressed inXenopusoocytes. - A. Time course of-Conotoxin CnIIIC(#STC-640) action on peak current NaV1.2 amplitude. Peak current amplitudes were plotted as a function of time. Membrane potential was held at -100 mV and oocytes were stimulated by a 100 ms voltage step to -10 mV. 0.5 M -Conotoxin CnIIIC was perfused as indicated by the bar for 5 min. B. Superimposed examples of NaV1.2 channel peak current in the absence (control) and presence (green) of 0.5 M -Conotoxin-CnIIIC (taken from the experiment in A).
product information
cat :
STC-640
SKU :
STC-640_0.1 mg
Product Name :
µ-Conotoxin CnIIIC
Group Type :
Non Antibodies
Product Type :
Proteins
Accession :
I1SB07
Accession Number :
https://www.uniprot.org/uniprotkb/I1SB07/entry
Applications :
Electrophysiology
Formulation :
Lyophilized from double distilled water (ddH2O). May contain TFA as a residual counter ion.
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.
Reconstitution and Solubility :
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.
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.
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.
Origin :
Conus consors (Singed cone)
Source :
Synthetic peptide
Gene ID :
CHRNA3,CHRNA4,CHRNA7 ,CHRNB2,SCN2A,SCN4A
Product Page - Scientific background :
µ-Conotoxin CnIIIC, a 22-residue conopeptide from Conus consors belonging to µ-conopeptide family, is a very potent, selective and durable antagonist of NaV channels. This toxin blocks both voltage-gated Na+ channels and neuronal nicotinic acetylcholine receptor (nAChR). µ-Conotoxin CnIIIC inhibits the rat skeletal muscle NaV1.4 with IC50 of 1.3 nM and the rat brain NaV1.2 expressed in HEK-293 cells. A low inhibition is also observed for mouse neuronal NaV1.6 and mouse NaV1.7. µ-Conotoxin CnIIIC modestly blocks nAChR α3/β2 subtype with IC50 values of 450 nM (partially reversible) and, to a lesser extent, α7 and α4/β2 subtypes (reversible) expressed in Xenopus oocytes. in vitro, it decreases twitch tension in mouse hemidiaphragms (IC50 = 150 nM) and displays a high blocking effect in mouse extensor digitorum longus muscles (IC50 = 46 nM).
Supplier :
Alomone Labs
Target :
NaV channels, α3/β2 nAChR
Long Description :
A Blocker of NaV Channels and an Antagonist of nAChRs
Short Description :
A Blocker of NaV Channels and an Antagonist of nAChRs
MW :
2375.7 Da
Synonyms :
Mu-Conotoxin CnIIIC
Modifications :
Disulfide bonds between: Cys3-Cys15, Cys4-Cys21 and Cys10-Cys22 Cys22 - C-terminal amidation Z - Pyrrolidone carboxylic acid (Glp)
Molecular formula :
C92H139N35O28S6
Effective Concentration :
0.5 - 1 µM
Activity :
µ-Conotoxin CnIIIC blocks NaV channels and α3/β2 nAChRs.
Storage of solutions :
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.
Lead Time :
1-2 Business Days
Country of origin :
Israel/IL
Purity :
≥99% (HPLC)
Form :
Lyophilized
Comment :
Contact Alomone Labs for technical support and product customization
Sequence :
ZGCCNGPKGCSSKWCRDHARCC-NH2
Is Toxin :
Yes
UNSPSC :
12352202
Bioassay Tested :
yes
Steril endotoxin free :
no
more info or order :
company information
Alomone Labs
Jerusalem BioPark (JBP), Hadassah Ein Kerem
P.O. Box 4287
Jerusalem 9104201
info@alomone.com
http://www.alomone.com
972 2 531 8002
headquarters: Israel