Segregation of the polypeptide translocation apparatus to regions of the endoplasmic reticulum containing ribophorins and ribosomes. Ii. Rat liver microsomal subfractions contain equimolar amounts of ribophorins and ribosomes Marcantonio, E.E. The Journal of Cell Biology 99(6): 2254-2259 1984 https://eurekamag.com/research/067/366/067366222.php