Neo-5,22E-Cholestadienol Derivatives from Buthus martensii Karsch and Targeted Bactericidal Action Mechanisms
نویسندگان
چکیده
منابع مشابه
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...
متن کاملExpression and purification of the BmK Mm2 neurotoxin from the scorpion Buthus martensii Karsch and its biological activity test.
The gene encoding neurotoxin (BmK Mm2) from the scorpion Buthus martensii Karsch was expressed in Escherichia coli BL21 (DE3) at a level of 1.6 mg/L using expression plasmid pExSecI system. SDS-PAGE analysis of the cell lysate confirmed that gene BmK Mm2 was expressed in soluble form and the expressed production was secreted into Luria-Bertani (LB) culture medium from Escherichia coli. Accordin...
متن کاملPurification and N-terminal partial sequence of anti-epilepsy peptide from venom of the scorpion Buthus martensii Karsch.
An anti-epilepsy peptide (AEP) was isolated and purified from venom of the scorpion Buthus martensii Karsch. The purification procedure included CM-Sephadex C-50 chromatography, gel filtration on Sephadex G-50 and DEAE-Sephadex A-50 chromatography. Its homogeneity was demonstrated by pH 4.3 polyacrylamide-disc-gel electrophoresis, focusing electrophoresis and SDS/polyacrylamide-disc-gel electro...
متن کاملStructure of an excitatory insect-specific toxin with an analgesic effect on mammals from the scorpion Buthus martensii Karsch.
BmK IT-AP is an excitatory insect-specific beta-toxin with analgesic effect from the Chinese scorpion Buthus martensii Karsch (BmK) and consists of 72 residues cross-linked by four disulfide bridges. The crystal structure of BmK IT-AP has been determined at a resolution of 2.6 A by molecular replacement. Compared with the mammal-selective alpha-toxins consisting of 64 residues from the scorpion...
متن کاملEffect of location of the His-tag on the production of soluble and functional Buthus martensii Karsch insect toxin.
The low yield and poor folding efficiency in vivo of soluble and active recombinant cysteine-rich proteins expressed in Escherichia coli are a major challenge for large-scale protein production and purification. Expression vectors containing Buthus martensii Karsch insect toxin (BmK IT) fused to the C terminus of the intein Ssp DnaB were constructed in an attempt to overcome this problem. Follo...
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ژورنال
عنوان ژورنال: Molecules
سال: 2018
ISSN: 1420-3049
DOI: 10.3390/molecules24010072