Overview
- Sahara, Y. et al. (2000) Eur. J. Neurosci. 12, 1961.
- Konno, K. et al. (2000) Neurosci. Lett. 285, 29.
- Konno, K. et al. (1998) Biochem. Biophys. Res. Commun. 250, 612.
Soluble in pure water up to 10 mM. For long-term storage in solution, it is recommended to prepare a stock solution by dissolving the product in double distilled water (ddH2O) at a concentration between 100-1000x of the final working concentration.
- β-Pompilidotoxin enhances native Nav currents in ND7-23 cells.The effect on inward currents of a bath application of 100 µM β-Pompilidotoxin (#P-180), (cyan). Nav currents were elicited every 15 sec. from a holding potential of -100 mV, by 20 ms test pulses to -10 mV.
- Alomone Labs β-Pompilidotoxin enhances NaV1.6 currents heterologously expressed in Xenopus oocytes.A. Time course of β-Pompilidotoxin (#P-180) action on NaV1.6 currents. Current area was plotted as a function of time. Membrane potential was held at -80 mV and oocytes were stimulated by a 100 ms voltage step to 0 mV, applied every 10 sec using two electrode voltage clamp. 5 μM (green) or 20 μM (magenta) β-Pompilidotoxin were perfused as indicated by the horizontal bars.
B. Superimposed traces of NaV1.6 currents in the absence (control) and presence of 5 μM (green) or 20 μM (magenta) β-Pompilidotoxin.
- Sahara, Y. et al. (2000) Eur. J. Neurosci. 12, 1961.
- Konno, K. et al. (2000) Neurosci. Lett. 285, 29.
- Konno, K. et al. (1998) Biochem. Biophys.Res. Commun. 250, 612.
β-PMTX was originally isolated from Anoplius samariensis and Batozonellus maclifrons wasps. This is a synthetic version of the peptide.
β-PMTX is a homologous peptide to α-PMTX (position 12 is Arginine instead of Lysine). β-PMTX induces repetitive action potentials and facilitates both excitatory and inhibitory synaptic transmission.
Recently it was found that this toxin slows the Na+-channel inactivation, without changing the peak current-voltage relationship or the activation time course of the TTX-sensitive Na+ currents in the neuromuscular synapse of the lobster walking leg and in the rat trigeminal ganglion neurons.1-3 β-PMTX is five times more potent than α-PMTX.1,2
β-Pompilidotoxin (#P-180) is a highly pure, synthetic, and biologically active peptide toxin.
Applications
Citations
- Gilchrist, J. et al. (2013) Proc. Natl. Acad. Sci. U.S.A. 110, E5016.