ProTx I

Pricing Availability   Qty
Cat.No. 4665 - ProTx I | Glu-Cys-Arg-Tyr-Trp-Leu-Gly-Gly-Cys-Ser-Ala-Gly-Gln-Thr-Cys-Cys-Lys-His-Leu-Val-Cys-Ser-Arg-Arg-His-Gly-Trp-Cys-Val-Trp-Asp-Gly-Thr-Phe-Ser | CAS No. 484598-35-8
Description: CaV3.1 blocker; also inhibits NaV1.8 and KV2.1
Literature (3)

Biological Activity for ProTx I

ProTx I is a selective CaV3.1 channel blocker (IC50 values are 0.2 and 31.8 μM for hCaV3.1 and hCaV3.2 respectively). Also reversibly inhibits NaV1.8 and blocks KV2.1 channels.

Technical Data for ProTx I

M. Wt 3987.51
Formula C171H245N53O47S6

(Modifications: Disulfide bridge: 2-16, 9-21, 15-28)

Storage Store at -20°C
CAS Number 484598-35-8
PubChem ID 90488963
Smiles [H]N[C@@H](CCC(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)CNC(=O)[C@H](CC4=CNC=N4)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CO)NC(=O)[C@H](CSSC[C@H](NC(=O)CNC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC4=CNC5=C4C=CC=C5)NC(=O)[C@H](CC4=CC=C(O)C=C4)NC(=O)[C@H](CCCNC(N)=N)NC1=O)C(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N3)NC(=O)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC1=CNC=N1)NC(=O)[C@H](CCCCN)NC2=O)C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC1=CNC2=C1C=CC=C2)C(=O)N[C@@H](CC(O)=O)C(=O)NCC(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CO)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 I

Solubility Soluble to 2 mg/ml in water

Product Datasheets for ProTx I

Certificate of Analysis / Product Datasheet
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References for ProTx I

References are publications that support the biological activity of the product.

Ohkubo et al (2010) Tarantula toxin ProTx-I differentiates between human T-type voltage-gated Ca2+ channels Cav3.1 and Cav3.2. J.Pharmacol.Sci. 112 452 PMID: 20351484

Ohkubo and Yamazaki (2012) T-type voltage-activated calcium channel Cav3.1, but not Cav3.2, is involved in the inhibition of proliferation and apoptosis in MCF-7 human breast cancer cells. Int.J.Oncol. 41 267 PMID: 22469755

Middleton et al (2002) Two tarantula peptides inhibit activation of multiple sodium channels. Biochemistry 41 14734 PMID: 12475222

If you know of a relevant reference for ProTx I, please let us know.

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Keywords: ProTx I, ProTx I supplier, ProTxI, calcium, sodium, potassium, ion, channels, NaV1.8, CaV3.1, CaV3.2, KV2.1, selective, blockers, venoms, Cav3.x, Channels, Voltage-gated, Sodium, Voltage-Gated, Potassium, 4665, Tocris Bioscience

Citations for ProTx I

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