P0033
ProTx-II
≥95% (HPLC)
Synonym(s):
PT-II, ProToxin-II
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About This Item
Empirical Formula (Hill Notation):
C168H250N46O41S8
Molecular Weight:
3826.59
UNSPSC Code:
51111800
Pricing and availability is not currently available.
Recommended Products
assay
≥95% (HPLC)
form
lyophilized solid
storage condition
under inert gas
color
white
storage temp.
−20°C
Biochem/physiol Actions
ProTx-II is a potent, selective Nav1.7 blocker.
ProTx-II is a potent, selective Nav1.7 blocker. Voltage-gated sodium channels (Nav) are responsible for transducing extracellular signals into action potentials in excitable cells. The Nav1 family consists of nine sub-types for which selective tools are highly valued. Discovery of subtype-selective tools has been challenging due to conservation of putative binding sites. Nav1.7 is expressed in sensory neurons and is critical for pain processing. ProTx-II, isolated from the tarantula Thrixopelma pruriens, is a potent blocker of Nav1 channels. Although ProTx-II blocks several members of this channel family, it has >100-fold selectivity for Nav1.7. ProTx-II is active in an in vitro model of pain processing. ProTx-II binds to a previously unknown site on the channel, conferring selectivity and increasing its value as a research tool. It blocks Nav1.7 by decreasing conductance and shifting the activation potential in the positive direction, resulting in an overall decrease in excitability.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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