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MitTx MitTx toxin – ASIC1a/1b agonist

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  • 产品名称:MitTx MitTx toxin – ASIC1a/1b agonist
  • 产品型号:MTX002
  • 产品展商:其他品牌
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MitTx MitTx toxin – ASIC1a/1b agonist MitTx is a peptide isolated from the Venom of the Texas coral snake Micrurus tener tener. MitTx is a selective agonist for acid-sensing ion channels 1 (ASIC1s) and produces a similar effect than pH drops. MitTx activates both ASIC1a & ASIC1b with a higher selectivity for ASIC1a (EC50 = 9.4 nM) compared to the ASIC1b (EC50= 23 nM). MitTx also demonstrates an activity for ASIC3 with a lower potency (EC50=830 nM). The venom toxin MitTx is an heterodimer composed of an α subunit of ~ 7 kDa and a β subunit of ~ 13.5 kDa. These two subunits when isolated do not present activity against ASIC channels. In vivo, the heterodimer elicits a robust pain-related behavior in mice by activation of ASIC1 channels on capsaicin-sensitive nerve fibers Bioassay results obtained in patch clamp at 30nM on the rASIC1a and rASIC1b expressed in xenopus oocytes.
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