Full network of transcription factors regulating the cell cycle. We identified the 4 transcription factors that were most significantly regulating the cell cycle and considered them along with the 8 canonical factors. We constructed a dynamical model of their α-coefficients and show here the non-zero entries in this matrix as directed links between the 12 factors. The resulting network represents the complete network of couplings between cell cycle regulating transcription factors. A line from factor A to factor B indicates that the activity of A affects the activity of B at the next time point. The displayed order of factors minimizes the number of upward arcs (these arcs being grouped on the right side of the figure).