FIELD: chemistry; biochemistry.
SUBSTANCE: invention pertains to bioengineering. In particular, the invention relates to method of obtaining recombinant mutant horse cytochrome c. This method is realised by introduction of K27E/E69K/K72E/K86E/K87E/E90K or K8E/E62K/E69K/K72E/K86E/K87E or K8E/K27E/E62K/E69K/K72E/K86E/K87E/E90K mutations through site-directed mutagenesis into the horse cytochrome c gene which is contained in pBPCYCS/3 plasmid DNA. Further, the Escherichia coli JM-109 strain of the obtained recombinant plasmid DNA is transformed and the target protein is expressed and introduced through cation-exchange and adsorption chromatography.
EFFECT: invention enables use of recombinant mutant horse cytochrome c as a test system for measuring the rate of generation of superoxide in membrane preparations.
3 dwg, 5 ex
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