Binds specifically to voltage-gated sodium channels (Nav) (site 3), thereby delaying their inactivation. Has a strong effect on crustaceans and insects (DmNav1) and a weaker effect on mammals. This toxin is highly potent at mammalian Nav1.1/SCN1A (EC(50)=6.01 nM) and Nav1.2/SCN2A (EC(50)=7.88 nM) (PubMed:15169781). It has also great activity on Nav1.5/SCN5A (EC(50)=49.05 nM), Nav1.4/SCN4A (EC(50)=109.49 nM) and Nav1.6/SCN8A (EC(50)=about 180 nM) and is less potent on Nav1.3/SCN3A (EC(50)=759.22 nM) (when measured as the increase in the slow component) (PubMed:15169781). Source: Recombinant protein corresponding to aa1-47 from Anemonia Sulcata Delta-actitoxin-Avd1c, fused to His-tag at N-terminal, expressed in Yeast. Molecular Weight: ~6.9kD Amino Acid Sequence: GVPCLCDSDGPSVRGNTLSGIIWLAGCPSGWHNCKKHGPTIGWCCKQ Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Supplied as a lyophilized powder from 20mM Tris-HCl, 0.5M sodium chloride, pH 8.0, 6% trehalose. Reconstitute with sterile ddH2O to a concentration of 0.1-1mg/ml.
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