although the total number of er sites in the cytosol and nucleus ( 16,900-32,100 sites/cell ) in separated stromal cells at various times after e2 stimulation was similar to er concentrations ( 20,000-30,000 sites/cell ) previously reported for the whole uterus , the partition of er between cytosol and nucleus ( 10:90 ) was different , favoring the nucleus even before e2 administration .
C0007634
cell
C0007610
nucleus