I5904
Iberiotoxin, recombinant from Mesobuthus tamulus
≥98% (HPLC), potassium channel inhibitor
别名:
IbTX
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]
应用
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.
生化/生理作用
Exhibits the same activity as the natural form of the toxin
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.
特点和优势
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.
制备说明
Soluble in aqueous buffers. Stock solutions of 1 μM can be aliquoted and stored at -20 °C for up to 3 months.
警示用语：
Danger
危险分类
Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral
储存分类代码
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
个人防护装备
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
法规信息
高风险级别生物产品--毒素类产品
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