產(chǎn)品詳情
簡單介紹:
rlberiotoxin(IbTx)
詳情介紹:
Sequence | QFTDVDCSVS KECWSVCKDL FGVDRGKCMG KKCRCYQ. |
Specificity | Iberiotoxin is a potent selective blocker of the high conductance Ca2+-activated K+ channels (maxi-K). |
Characteristics |
Source: Mesobuthus tamulus (Eastern Indian scorpion). Molecular formula: C179H277N51O55S7. Disulfide bonds between Cys7-Cys28, Cys13-Cys33, and Cys17-Cys35. |
Purity | > 98 % |
Background | Inhibition of BKCa channels heterologously expressed in HEK293 cells by Iberiotoxin. mSlo channel currents, before and during application of 100nM rIberiotoxin. The mSlo currents were activated by a 50 ms voltage step to +100 mV from a prepulse of -180 mV with intracellular 10 M Ca2+. |
Molecular Weight | 4248 |
Application Notes | 50-100 nM |
Comment |
K+ channel toxin -KTx 1.3 |
Restrictions | For Research Use only |
Format | Lyophilized |
Reconstitution |
Any aqueous buffer. Centrifuge all product preparations before use (10000 x g 5 min). Concentration after reconstitution: Dissolving 50 g in 1.175ml will provide a stock solution of 10 M. |
Handling Advice | Soluble in Water. |
Supplier Images |
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Background publications |
Meera, Wallner, Toro: "A neuronal beta subunit (KCNMB4) makes the large conductance, voltage- and Ca2+-activated K+ channel resistant to charybdotoxin and iberiotoxin." in: Proceedings of the National Academy of Sciences of the United States of America, Vol. 97, Issue 10, pp. 5562-7, 2000 (PubMed).
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Product cited in: |
Koschak, Koch, Liu, Kaczorowski, Reinhart, Garcia, Knaus: "[125I]Iberiotoxin-D19Y/Y36F, the first selective, high specific activity radioligand for high-conductance calcium-activated potassium channels." in: Biochemistry, Vol. 36, Issue 7, pp. 1943-52, 1997 (PubMed).
Galvez, Gimenez-Gallego, Reuben, Roy-Contancin, Feigenbaum, Kaczorowski, Garcia: "Purification and characterization of a unique, potent, peptidyl probe for the high conductance calcium-activated potassium channel from venom of the scorpion Buthus tamulus." in: The Journal of biological chemistry, Vol. 265, Issue 19, pp. 11083-90, 1990 (PubMed). |