the analysis of the proteins , pulse-labeled for 3 h with [ 35s ] methionine , in quiescent cells deprived of serum and in cells that had been stimulated for various periods of time by the addition of tsh , egf and serum showed maximal modifications before entry into s phase : the labeling of at least ten proteins was enhanced while that of at least six proteins was decreased .
C0007634
cells
C0080129
s phase