kappa-Bungarotoxin Protein

Catalog No. ABIN7582319

This Native kappa-Bungarotoxin protein is produced in Snake (Serpentes).

Quick Overview for kappa-Bungarotoxin Protein (ABIN7582319)

Target: kappa-Bungarotoxin

Protein Type: Native

Origin: Bungarus multicinctus

Source: Snake (Serpentes)

Application: Blocking Peptide (BP)

Purity: ≥98 % (HPLC)

Product Details

Purpose: A Potent Antagonist of α3/β2 Neuronal nAChR

Sequence: RTCLISPSST PQTCPNGQDI CFLKAQCDKF CSIRGPVIEQ GCVATCPQFR SNYRSLLCCT TDNCNH-OH

Specificity: Toxin target: α3/β2 Neuronal nAChR,
Disulfide bonds between: Cys3-Cys21, Cys14-Cys42, Cys27-Cys31, Cys46-Cys58, Cys59-Cys64

Characteristics: A Potent Antagonist of α3/β2 Neuronal nAChR

Application Details

Application Notes: Antigen Preadsorption Control: 5 - 25 nM

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Centrifuge the vial (10,000 x 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.

Buffer: Lyophilized from double distilled water (ddH2O). May contain TFA as a residual counter ion.

Storage: 4 °C,-20 °C

Storage Comment: 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.,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.

Target Details

Target: kappa-Bungarotoxin

Background: Kappa-Bungarotoxin, Kappa-bgt, Kappa-1-bungarotoxin, Long neurotoxin 2,Neuronal bungarotoxin, nBgt, Toxin F,Kappa-bungarotoxin (κ-Bungarotoxin, κ-Bgt) is a 66 amino acid peptidyl toxin isolated from the venom of the banded krait snake, Bungarus multicinctus1,2. κ-Bgt is a postsynaptic neurotoxin that potently binds and inhibits the neuronal types of nicotinic acetylcholine receptors (nAChR). It is a selective antagonist of α3-containing and some α4-containing nAChRs subunits3.Under physiological solvent conditions, κ-Bungarotoxin exists as a non-covalent homodimer4. The dimeric nature of the toxin may play a crucial role in the binding properties of κ-Bgt to neuronal types of AChRs while losing its potency on muscle receptors4-6.Neuronal nicotinic acetylcholine receptors (nAChRs) are prototypical cation-selective, ligand-gated ion channels that mediate fast neurotransmission in the central and peripheral nervous systems. nAChRs are involved in a range of physiological and pathological functions and hence are important therapeutic targets7. The κ-neurotoxins have been valuable pharmacological tools in the study of neuronal AChRs3.

Molecular Weight: 7265 Da

UniProt: P01398