An ERG Channel Inhibitor from the Scorpion Buthus eupeus

Characterization of cDNA sequence encoding for a novel sodium channel -toxin from the Iranian scorpion Mesobuthus eupeus venom glands

The venoms of Buthidae scorpions are known to contain basic, single-chain protein -toxins consisting of 60-70 amino acid residues that are tightly cross-linked by four disulfide bridges. Total RNA was extracted from the venom glands of scorpion Mesobuthus eupeus collected from the Khuzestan province of Iran and then cDNA was synthesized with the modified oligo (dT) primer and extracted total R...

In vitro neutralization of the scorpion, Buthus tamulus venom toxicity.

Scorpion (Buthus tamulus) venom was subjected to neutralization by treating the venom with various chemicals such as hydrochloric acid, sodium hydroxide, thiourea, formaldehyde, zinc sulphate, acetic acid and trichloroacetic acid. The venom was also subjected to heat treatment. The levels of total protein, free amino acids and protease activity in neutralized venom decreased significantly. The ...

Mesobuthus eupeus, An Indigenous scorpion from Iran. Origin and its Geographical Distribution

Effect of starvation and refeeding on the scorpion, Buthus tamulus.

1. Scorpions were starved for 1, 4, 8, and 12 days and then subsequently refed until the sixteenth day. The concentrations of glycogen, amino acid, and protein in the liver were determined to evaluate the effect of starvation and refeeding on these biochemical constituents. 2. The concentration of glycogen decreased gradually but significantly with the progressive days of starvation. After refe...

Expression, renaturation and functional analysis of an excitatory insect-specific toxin from scorpion Buthus martensii Karsch.

The cDNA of BmK IT-AP, an excitatory insect toxin from the scorpion Buthus martensi Karsch that has an analgesic effect on mammalian cells, was expressed in E. coli in the form of an inclusion body. Following denaturation and reduction, the recombinant protein was renatured and purified by liquid chromatography. The authenticity of the recombinant product was confirmed by bioassay and its elect...