AaH II Protein, Androctonus australis, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 23.3 kDa and the accession number is P01484.

Androctonus australis

E. coli

Neurotoxin II (Toxin II),Alpha-mammal toxin AaH2,AaH II (AaHII)

VKDGYIVDDVNCTYFCGRNAYCNEECTKLKGESGYCQWASPYGNACYCYKLPDHVRTKGPGRCH

20-83 aa

> 90% as determined by SDS-PAGE.

A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.

Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

Alpha toxins bind voltage-independently at site-3 of sodium channels (Nav) and inhibit the inactivation of the activated channels, thereby blocking neuronal transmission. The toxin principally slows the inactivation process of TTX-sensitive sodium channels. It is active on rat brain Nav1.2/SCN2A sodium channel (EC(50)=2.6 nM) and on rat skeletal muscle Nav1.4/SCN4A sodium channel (EC(50)=2.2 nM), as well as on human neuronal Nav1.7/SCN9A (EC(50)=6.8 nM). This toxin is active against mammals. In vivo, intraplantar injection into mice induces spontaneous pain responses.