Histochemical detection of creatine kinase in the electrocyte of Electrophorus electricus (L.).

Detection of creatine kinase, which catalyzes the conversion of ADP and phosphocreatine to ATP and creatine, was performed on the electrocyte of Electrophorus electricus (L.) using a histoenzymological method based on the formation of blue colored formazan. The results indicate that the enzyme is mainly located within the cytoplasm of the electrolyte.