[Neurospecific protein S-100 in the synaptosomes of rat cerebral cortex].

Neurospecific S-100 protein was revealed by the methods of microelectrophoresis in the 15% polyacrylamide gel with a 0.1% sodium dodecylsulfate and by a highly purified S-100 protein "marker" in the composition of low molecular acidic proteins of the rat brain synaptosomes. The S-100 protein conten constitutes about 15-2o% of the low molecular acidic synaptosomal porteins in the rat brain.