the absence of immunoprecipitate within cytoplasmic organelles ( golgi apparatus , mitochondria , lumen of endoplasmic reticulum ) and its presence at the cytoplasmic face of the cell membranes strongly suggests that endogenous bzd-like molecules are present in both the soluble cytoplasm ( hyatoplasm ) , and also in association with both external and internal cell membranes .
C0010834
cytoplasm
C0007603
cell membranes