Psalmotoxin 1 | PcTX1

Psalmotoxin 1 | PcTX1

150,00  excl. 19% VAT

SKU: 4435-s Category:

Psalmotoxin 1 | PcTX1
(South American Tarantula, Psalmopoeus cambridgei)

4435-s 0.1 mg | 150.00 EUR

Glu- Asp- Cys- Ile- Pro- Lys- Trp- Lys- Gly- Cys- Val- Asn- Arg- His- Gly- Asp- Cys- Cys- Glu- Gly- Leu- Glu- Cys- Trp- Lys- Arg- Arg- Arg- Ser- Phe- Glu- Val- Cys- Val- Pro- Lys- Thr- Pro- Lys- Thr

(M.W. 4689.4) C200H312N62O57S6

Synthetic Product Trifluoracetate Form (disulfide bonds between Cys3– Cys18, Cys10– Cys23 and Cys17– Cys33 )

The purity is guaranteed to be higher than 99% by HPLC

Selective Blocker for Acid-Sensitive Ion Channel, ASIC1a

Psalmotoxin 1 (PcTX1), a peptide toxin composed of 40 amino acid residues was originally isolated from the venom of the West Indies tarantula Psalmopoeus cambridgei. It inhibits cation currents mediated by acid-sensing ion channels (ASIC). Psalmotoxin 1 shows high analgesic properties in mice and rat models.

Shipping | Storage | Stability
Our product Psalmotoxin 1 (PcTX1) will be shipped at room temperature. Information about product specific storage conditions will be found on the vial. Stock solutions should be stored at -20°C. Please avoid repeated freezing and thawing by preparing aliquots.


  1. P. Escoubas, J.R. De Weille, A. Lecoq, S. Diochot, R. Waldmann, G. Champigny, D. Moinier, A. Ménez and M. Lazdunski, J. Biol. Chem., 275, 25116 (2000) (Original; Primary Structure & ASIC Blocking S)
  2. J.K. Bubien, H.-L. Ji, G.Y. Gillespie, C.M. Fuller, J.M. Markert, T.B. Mapstone and D.J. Benos, Am. J. Physiol., 287, C1282 (2004) (Pharmacol.)
  3. X. Chen, H. Kalbacher and S. Gründer, J. Gen. Physiol., 126, 71 (2005) (Pharmacol.)
  4. X. Chen, H. Kalbacher and S. Gründer, J. Gen. Physio., 127, 267 (2006) (Pharmacol.)

Links to publications that use our peptide Psalmotoxin (PcTX1) | code 4435-s:

  1. Histamine selectively potentiates acid-sensing ion channel 1a