the effect on the vmax was due to an increase in the number of surface glucose transporters as indicated by the enhancement of the d-glucose-sensitive fraction of [ 3h ] cytochalasin b binding sites that in thyroid plasma membranes of cells exposed to tsh for 2 and 8 h , increased from 5.0 ( basal value ) to 10.4 and 23.1 pmol/mg protein , respectively .
C0007603
plasma membranes
C0007634
cells