the presence of a protease-sensitive component of these biosynthetic activities on the cytoplasmic surface of microsomal vesicles , and the absence of latency for any of these biosynthetic activities suggest that the biosynthesis of phosphatidylcholine , phosphatidylethanolamine , and triacylglycerol occurs asymmetrically on the cytoplasmic surface of the endoplasmic reticulum .
C0010834
cytoplasmic
C0014239
endoplasmic reticulum