I5904
Iberiotoxin, recombinant from Mesobuthus tamulus
≥98% (HPLC), recombinant, expressed in E. coli
Synonyme(s) :
IbTX
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About This Item
Formule empirique (notation de Hill):
C179H276N50O56S7
Poids moléculaire :
4248.86
Code UNSPSC :
12352200
ID de substance PubChem :
Nomenclature NACRES :
NA.77
Produits recommandés
Produit recombinant
expressed in E. coli
Niveau de qualité
Pureté
≥98% (HPLC)
Température de stockage
−20°C
Amino Acid Sequence
Glp-Phe-Thr-Asp-Val-Asp-Cys-Ser-Val-Ser-Lys-Glu-Cys-Trp-Ser-Val-Cys-Lys-Asp-Leu-Phe-Gly-Val-Asp-Arg-Gly-Lys-Cys-Met-Gly-Lys-Lys-Cys-Arg-Cys-Tyr-Gln [Disulfide Bridges: 7−28; 13−33; 17−35]
Application
Iberiotoxin, recombinant from Mesobuthus tamulus has been used as an inhibitor of large-conductance calcium-activated K+ channels to study its effect on the NLRP3 (nucleotide-binding oligomerization domain-like receptor containing pyrin domain 3) inflammasome activation in bone marrow-derived macrophages (BMDMs). It has also been used to block Ca2+- activated K+ channels to determine interleukin(IL)-1β in BMDCs following inflammasome activation.
Actions biochimiques/physiologiques
The single chain peptide iberiotoxin (IbTX) is a selective and reversible inhibitor of high-conductance calcium-activated potassium channels (PK,Ca). It occurs naturally in the venom of the scorpion Buthus tamulus. IbTX also modulates the binding of charybdotoxin (CbTX) to smooth muscle sarcolemmal membranes in a non-competitive manner. IbTX is similar in size to CbTX and shares considerable sequence homology with CbTX. However, IbTX differs in its overall charge in having one fewer basic and four more acidic residues than CbTX.
Exhibits the same activity as the natural form of the toxin
Caractéristiques et avantages
This compound is featured on the Potassium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
Notes préparatoires
Soluble in aqueous buffers. Stock solutions of 1 μM can be aliquoted and stored at -20 °C for up to 3 months.
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral
Code de la classe de stockage
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
Classe de danger pour l'eau (WGK)
WGK 3
Équipement de protection individuelle
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Certificats d'analyse (COA)
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