| Chemical Properties | Back Directory | [storage temp. ]
Store at -20°C | [solubility ]
Soluble to 1 mg/ml in H2O | [form ]
solid | [color ]
White | [Water Solubility ]
Soluble to 1 mg/ml in water |
| Hazard Information | Back Directory | [Biological Activity]
huwentoxin xvi(hwtx-xvi ) is composed of 39 amino acid residues including six cysteines. hwtx-xvi is a novel neurotoxin from the venom of chinese tarantula o. huwena. and specificially block n-type calcium channels. [1]n-type calcium channels are often highly expressed both in dorsal root ganglia cell bodies and in the synaptic terminals projecting to dorsal horn of the spinal cord n-type calcium channels play important roles in the control of neurotransmission release and transmission of pain signals to the central nervous system.[2]electrophysiological assay indicated that hwtx-xvi specifically inhibited n-type calcium channels in rat dorsal root ganglion cells. hwtx-xvi specifically inhibits gvia sensitive, n-type calcium channels in rat drg cells.[1]hwtx-xvi could almost completely block the twitch response of rat vas deferens to low-frequency electrical stimulation. hwtx-xvi ‘s analgesic effects, non-toxic and complete reversibility make it an interesting tool for developing novel drugs for the treatment of n-type calcium channel-related diseases.[1,2] | [storage]
Store at -20°C | [References]
[1] deng m, luo x, xiao y etal. , huwentoxin-xvi, an analgesic, highly reversible mammalian n-type calcium channel antagonist from chinese tarantula ornithoctonus huwena. neuropharmacology. 2014 apr;79:657-67.
[2] liu z, dai j, dai l etal. , function and solution structure of huwentoxin-x, a specific blocker of n-type calcium channels, from the chinese bird spider ornithoctonus huwena. j biol chem. 2006 mar 31;281(13):8628-35. |
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