eighty percent of aebs were localized in the endoplasmic reticulum [ 45,000 +/- 4,000 sites/cell , mean +/- s.d . ) , while 20 % of these sites were also found in the nuclear fraction ( 12,000 +/- 1,000 sites/cell , mean +/- s.d . ) .
C0014239
endoplasmic reticulum
C0007634
cell