1. Membrane Transporter/Ion Channel Neuronal Signaling
  2. nAChR
  3. α-Bungarotoxin

α-Bungarotoxin is a competitive antagonist at nicotinic acetylcholine receptors (nAChRs). α-Bungarotoxin, a selective α7 receptor blocker, blocks α7 currents with an IC50 of 1.6 nM and has no effects on α3β4 currents at concentrations up to 3 μM.

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α-Bungarotoxin Chemical Structure

α-Bungarotoxin Chemical Structure

CAS No. : 11032-79-4

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Based on 3 publication(s) in Google Scholar

Other Forms of α-Bungarotoxin:

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Description

α-Bungarotoxin is a competitive antagonist at nicotinic acetylcholine receptors (nAChRs). α-Bungarotoxin, a selective α7 receptor blocker, blocks α7 currents with an IC50 of 1.6 nM and has no effects on α3β4 currents at concentrations up to 3 μM[1][2].

In Vitro

α-Bungarotoxin binds specifically and with high affinity to the nicotinic acetylcholine receptor and competes with binding of the natural ligand. α-Bungarotoxin (α-BTX), is a potent competitive inhibitors of nicotinic acetylcholine receptor function and is highly toxic due to functional blockade of AcChoRs at the neuromuscular junction[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

7984.12

Formula

C338H529N97O105S11

CAS No.
Appearance

Solid

Color

White to off-white

Sequence

Ile-Val-Cys-His-Thr-Thr-Ala-Thr-Ser-Pro-Ile-Ser-Ala-Val-Thr-Cys-Pro-Pro-Gly-Glu-Asn-Leu-Cys-Tyr-Arg-Lys-Met-Trp-Cys-Asp-Ala-Phe-Cys-Ser-Ser-Arg-Gly-Lys-Val-Val-Glu-Leu-Gly-Cys-Ala-Ala-Thr-Cys-Pro-Ser-Lys-Lys-Pro-Tyr-Glu-Glu-Val-Thr-Cys-Cys-Ser-Thr-Asp-Lys-Cys-Asn-Pro-His-Pro-Lys-Gln-Arg-Pro-Gly (Disulfide bridge: Cys3-Cys23;Cys16-Cys44;Cys29-Cys33;Cys48-Cys59;Cys60-Cys65)

Sequence Shortening

IVCHTTATSPISAVTCPPGENLCYRKMWCDAFCSSRGKVVELGCAATCPSKKPYEEVTCCSTDKCNPHPKQRPG (Disulfide bridge: Cys3-Cys23;Cys16-Cys44;Cys29-Cys33;Cys48-Cys59;Cys60-Cys65)

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : ≥ 50 mg/mL (6.26 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.1252 mL 0.6262 mL 1.2525 mL
5 mM 0.0250 mL 0.1252 mL 0.2505 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo Dissolution Calculator
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Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation

Purity: ≥99.0%

References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 0.1252 mL 0.6262 mL 1.2525 mL 3.1312 mL
5 mM 0.0250 mL 0.1252 mL 0.2505 mL 0.6262 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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α-Bungarotoxin Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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