Conditions that yield a repressive outcome when pivot is Illumination and target is ASN1: Starvation_Y Carbon_N NH4_N NO3_N GLU_Y GLN_Y The following may give a strong repressive effect: GLN_N Experiments to clarify border between repressive and not Starvation_N, Organ_L, Time_S, Media_T, Carbon_Y, NH4_Y, NO3_Y, GLU_N, GLN_Y Starvation_N, Organ_L, Time_S, Media_T, Carbon_Y, NH4_Y, NO3_Y, GLU_Y, GLN_N