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ProTx-II-Biotin Europäischer Partner

ArtNr ALO-STP-100-B-0.1mg
Hersteller Alomone
Menge 0.1 mg
Quantity options 0.1 mg 10 x 0.1 mg 5 x 0.1 mg
Kategorie
Typ Molecules
Format Lyophilized
Applikationen WB
Specific against other
Konjugat/Tag Biotin
Purity ≥98% (HPLC)
Formula Lyophilized from double distilled water (ddH2O). May contain TFA as a residual counter ion.
Sequence Biotin-YCQKWMWTCDSERKCCEGMVCRLWCKKKLW-OH
ECLASS 10.1 32169090
ECLASS 11.0 32169090
UNSPSC 12000000
Versandbedingung Raumtemperatur
Lieferbar
Manufacturer - Type
Non Antibodies
Manufacturer - Applications
Electrophysiology, Western blot
Manufacturer - Category
Proteins
Manufacturer - Targets
NaV Na+ channels and T-type Ca2+ channels
Manufacturer - Conjugate / Tag
Biotin at the N-terminus.
Country of Origin
Israel
Shipping Temperature
The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture.
Storage Conditions
Storage as Solution: Store the reconstituted solution at -20°C for the shortest time possible. Avoid multiple freeze-thaw cycles. We do not recommend storing the product in working solutions for longer than a day. - Storage before Reconstitution: The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture. - Storage after Reconstitution: Store the reconstituted solution for the shortest time possible at -20°C. We do not recommend storing the product in working solution for longer than one day. Avoid multiple freeze-thaw cycles.
Molecular Weight
4053 Da
Manufacturer - Format
Lyophilized
Short description
A Blocker of NaV1.7 and NaV1.5 Channels and some T-Type Ca2+ Channels Conjugated to Biotin
Description
β/ω-theraphotoxin-Tp2a-Biotin, Protoxin-2-Biotin, PT-II-Biotin, ProTx2-Biotin, Protoxin2-Biotin - A Blocker of NaV1.7 and NaV1.5 Channels and some T-Type Ca2+ Channels Conjugated to Biotin
Reconstitution
Centrifuge the vial (10, 000 × g for 5 minutes) before adding solvent to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Gently tap, tilt, and roll the vial to aid dissolution. Avoid vigorous vortexing; light vortexing for up to 3 seconds is acceptable if needed. The product is soluble in pure water at high micromolar concentrations (5 µM - 1 mM). For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in double distilled water (ddH2O) at a concentration between 100-1000x of the final working concentration. Divide the stock solution into small aliquots and store at -20°C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. Centrifuge all product preparations before use. It is recommended to prepare fresh solutions in working buffers just before use. Avoid multiple freeze-thaw cycles to maintain biological activity.
Specificity

A Blocker of NaV1.7 and NaV1.5 Channels and some T-Type Ca2+ Channels Conjugated to Biotin

PH
7, 4
UNSPSC
12352202
Origin
Thrixopelma pruriens (Peruvian green velvet tarantula)
Modifications

Disulfide bonds between: Cys2-Cys16, Cys9-Cys21, and Cys15-Cys25

Biotin

Effective Concentration
10 - 500 nM
Activity
ProTx-II inhibits NaV channels1. ProTx-II could also modulate T-type Ca2+ channels at higher concentrations2.
Solubility
Centrifuge the vial before adding solvent (10, 000 x g for 5 minutes) to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Tap the vial to aid in dissolving the lyophilized product. Tilt and gently roll the liquid over the walls of the vial. Avoid vigorous vortexing. Light vortexing for up to 3 seconds is acceptable if needed. The product is soluble in pure water at high micromolar concentrations (100 µM - 1 mM). For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in double-distilled water (ddH2O) at a concentration between 100-1000x of the final working concentration. Divide the stock solution into small aliquots and store at -20°C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. Centrifuge all product preparations before use. It is recommended to prepare fresh solutions in working buffers just before use. Avoid multiple freeze-thaw cycles to maintain biological activity.
Sterile endotoxin free
no
Bioassay tested
yes
Scientific Background
ProTx-II is a peptidyl toxin originally produced in Thrixopelma pruriens, the Peruvian green velvet tarantula. It was identified as a voltage-gated Na+ channel (NaV) blocker which inhibits both tetrodotoxin-sensitive and tetrodotoxin-resistant channels1.Binding of ProTx-II to an extracellular domain of NaV channel, probably to a hydrophobic site3, inhibits current by shifting the channel activation to more positive potentials1-2.ProTx-II Inhibits NaV1.2, NaV1.3, NaV1.5, NaV1.6, NaV1.7, and NaV1.8. It is a significantly more potent inhibitor against NaV1.7 than the other NaV channel subtypes1.ProTx-II was also found as an effective modulator which shifts the voltage dependence activity of T-type Ca2+channel1.

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Alle Produkte sind nur für Forschungszwecke bestimmt. Nicht für den menschlichen, tierärztlichen oder therapeutischen Gebrauch.

Menge: 0.1 mg
Lieferbar: In stock
lieferbar

Lieferung vsl. bis 08.01.2026 

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