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Submit ReviewProTx III
Description: Potent Nav1.7 blocker; analgesic
Biological Activity for ProTx III
ProTx III is a potent Nav1.7 blocker (IC50 = 2.5 nM). Also inhibits Nav1.1, Nav1.2, Nav1.3 and Nav1.6 in the nanomolar range. Exhibits no effects on Cav channels or nAChR at 5 μM. Demonstrates analgesic activity in vivo; antagonizes effects of scorpion-venom toxin OD1 at Nav1.7.
Technical Data for ProTx III
| M. Wt | 3802.41 |
| Formula | C162H246N52O43S6 |
| Sequence |
DCLKFGWKCNPRNDKCCSGLKCGSNHNWCKLHI (Modifications: Disulfide bridge: 2-17, 9-22, 16-29, Ile-33 = C-terminal amide) |
| Storage | Store at -20°C |
| PubChem ID | 121513895 |
| InChI Key | CLSMEZFRATUESA-ZYYCRPBWSA-N |
| Smiles | [H]N[C@@H](CC(O)=O)C(=O)N[C@H]1CSSC[C@@H]2NC(=O)[C@@H]3CSSC[C@H](NC(=O)[C@H](CC4=CNC5=C4C=CC=C5)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CC4=CNC=N4)NC(=O)[C@H](CC(N)=O)NC(=O)[C@H](CO)NC(=O)CNC(=O)[C@H](CSSC[C@H](NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC4=CNC5=C4C=CC=C5)NC(=O)CNC(=O)[C@H](CC4=CC=CC=C4)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(C)C)NC1=O)C(=O)N[C@@H](CC(N)=O)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N3)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(C)C)NC(=O)CNC(=O)[C@H](CO)NC2=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC1=CNC=N1)C(=O)N[C@@H]([C@@H](C)CC)C(O)=O |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for ProTx III
| Solubility | Soluble to 1 mg/ml in water |
Product Datasheets for ProTx III
References for ProTx III
References are publications that support the biological activity of the product.
Cardoso et al (2015) Identification and characterization of ProTx-III [μ-TRTX-Tp1a], a new voltage-gated sodium channel inhibitor from venom of the tarantula thrixopelma pruriens. Mol.Pharmacol. 88 291 PMID: 25979003
If you know of a relevant reference for ProTx III, please let us know.
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Keywords: ProTx III, ProTx III supplier, Potent, Nav1.7, blockers, inhibitors, inhibits, Nav1.1,, Nav1.2,, Nav1.3, Nav1.6, analgesics, voltage, gated, sodium, channels, venoms, Voltage-gated, Sodium, Channels, 5792, Tocris Bioscience
Citations for ProTx III
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Literature in this Area
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