α-Conotoxin AuIB
Biological Activity
Selective antagonist of α3β4 nicotinic acetylcholine receptors. Displays > 100-fold selectivity over other receptor subunit combinations including α2β2, α2β4, α3β2, α4β2, α4β4 and α1β1γδ.
Licensing Information
Sold under license from University of Utah
Technical Data
| M. Wt | 1572.76 |
| Formula | C65H89N17O21S4 |
| Sequence |
GCCSYPPCFATNPDC (Modifications: Cys-15 = C-terminal amide, Disulfide bridge between 2 - 8, 3 - 15) |
| Storage | Desiccate at -20°C |
| CAS Number | 216299-21-7 |
| PubChem ID | 73755065 |
| InChI Key | SVNSCQIKKAACJG-SBLJLSJOSA-N |
| Smiles | [H]NCC(=O)N[C@H]1CSSC[C@@H]2NC(=O)[C@@H]3CCCN3C(=O)[C@@H]3CCCN3C(=O)[C@H](CC3=CC=C(O)C=C3)NC(=O)[C@H](CO)NC(=O)[C@H](CSSC[C@H](NC(=O)[C@H](CC(O)=O)NC(=O)[C@@H]3CCCN3C(=O)[C@H](CC(N)=O)NC(=O)[C@@H](NC(=O)[C@H](C)NC(=O)[C@H](CC3=CC=CC=C3)NC2=O)[C@@H](C)O)C(N)=O)NC1=O |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
Solubility Data
| Solubility | Soluble to 5 mg/ml in water |
Preparing Stock Solutions
The following data is based on the product molecular weight 1572.76. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 0.64 mL | 3.18 mL | 6.36 mL |
| 5 mM | 0.13 mL | 0.64 mL | 1.27 mL |
| 10 mM | 0.06 mL | 0.32 mL | 0.64 mL |
| 50 mM | 0.01 mL | 0.06 mL | 0.13 mL |
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References
References are publications that support the products' biological activity.
Luo et al (1998) α-Conotoxin AuIB selectively blocks α3β4 nicotinic acetylcholine receptors and nicotine-evoked norepinephrine release. J.Neurosci. 18 8571 PMID: 9786965
Nai et al (2003) Relating neuronal nicotinic acetylcholine receptor subtypes defined by subunit composition and channel function. Mol.Pharmacol. 63 311 PMID: 12527802
Park et al (2006) An α3β4 subunit combination acts as a major functional nicotinic acetylcholine receptor in male rat pelvic ganglion neurons. Pflugers Arch. 452 775 PMID: 16715294
If you know of a relevant reference for α-Conotoxin AuIB, please let us know.
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Citations for α-Conotoxin AuIB
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