Abstract:We studied the effect of lipids on the activity of a neutral cysteine proteinase, calpain, in subcellular fractions obtained from the rat brain. Extraction of nearly 23% of membrane cholesterol from the coarse mitochondrial fraction did not result in modifications of specific activity of calpain in this fraction. Detergents (digitonin or Triton Х-100) used in 0.3% concentration enhanced the activity of calpain in the coarse mitochondrial fraction. Examination of the effects of preparations of different phospho… Show more
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