γ-Dendrotoxin

貨號 Cat. No.
D-370
規格 Size
70 μg 5x70 μg

Description

g-Dendrotoxin


A Potent and Specific Blocker of Kv1.1 Channels











Product#: D-370

























Sizes:
70 mg
5 x 70 mg
 
 
 
 














M.W.: 7000










Sequence: unidentified completely.










Purity: >98%












Bioassay:

g-Dendrotoxin was potent in blocking cloned Kv1.1 channels (80?%, n=4), but blocked only a relatively small fraction (21?%, n=4) of cloned Kv1.2 channels, both expressed in Xenopus oocytes.












Kv1.1 (left, in 2mM K+) and Kv1.2 (right, in 5mM K+) channel currents, elicited by 200 ms depolarization from holding potential of -100 mV to +20 mV, before and during application of 100 nM g-Dendrotoxin.








 









References:














1.



Harvey, A.L. and Anderson, A.J. (1985) Pharmacol. Ther. 31, 33.

 



2.



Benishin, C.G. et al. (1988) Mol. Pharmacol. 34, 152. 

 




g-Dendrotoxin is isolated from Dendroaspis angusticeps snake venom, by modification of the procedures of Harvey1 and Benishin2  and purified to homogeneity.


 

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