Transcription factor (TF) activities calculated by FastNCA. A. Predicted activities of six transcription factors (TFs) used in this study. For each TF, rows represent different cell type and columns correspond to the different TF. Black diamond represents the base level, and green diamond represents activity of TF is lower than base level. Red diamond represents activity is higher than base level. B. Correlation matrix between TF activities and gene expression of TF. Red diamond represents positive correlation, and green diamond represents negative correlation. Black diamond represents there is no correlation between TF activities.