in subcellular fractionation analysis of cerebrum , c-ras p21s were found mostly in the particulate fractions and almost half of the particulate-bound c-ras p21s were recovered in the p2 fraction containing myelin , synaptosomes and mitochondria , approximately one-third were in the p3 fraction containing microsomes , and the rest were in the p1 fraction containing nuclei and cell debris .
C0007610
nuclei
C0007634
cell