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100ug EUR 175
175€
500ug EUR 525
525€
1mg EUR 895
895€


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PUROTOXIN 1

Product name
PUROTOXIN 1
Catalog number
011PUR001-00100 (100ug)
011PUR001-00500 (500ug)
011PUR001-01000 (1mg)
Description
Purotoxin1 (PT-1) is a peptide originally isolated from the Central Asian spider Geolycosa sp. It was shown to inhibit selectively P2X3 receptor channels at a 100 nM concentration. Studies were carried-out on cultured rat DRG neurons. Patch-clamp experiments did not show any inhibitory effect of PT-1 on voltage-gated channels (potentials range tested from -100 to 20 mV), neither on TRPV1 (after activation with 500 nM capsaicin). The selectivity of PT-1 for P2X3 was highlighted by activating this receptor with 10 uM ATP and 100 uM Alpha, Beta Methylene-ATP. Indeed, unlike P2X3, P2X2 and heterodimer P2X2/3 are known to be not sensitive to such concentrations. Moreover, P2X3, P2X2, and P2X2/3 are the only known ATP-sensitive receptors expressed in plasma membranes of DRG neurons. So, the observed effect seems to be well related to a selective inhibition of P2X3. P2X3-mediated current was fully inhibited with 100 nM PT-1, making it the most potent and selective ligand for P2X3. 
Source
Smartox Biotechnology
Product category
Proteins & Peptides
Product sub category
Peptides
Label
No
Shipment info
Room Temperature
Nacres Codification
NA.26

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