Figure 5From: Transcription through enhancers suppresses their activity in DrosophilaTranscription through eye enhancer leads to dislodging of Zeste from the enhancer. Results of ChIP with antibodies to the Zeste protein from (A) (UAS)Ey(e)YW, (B) UAS(Ts)Ey(e)∆YtsW and (C) (EF1)Ey(e)YW transgenic lines. Diagrams summarize the results of ChIP with specific antibodies followed by real-time PCR. The ordinate shows the percentage of target sequences in the immunoprecipitated material relative to the input (10% of total crosslinked chromatin), with the genome regions for which DNA enrichment was tested being indicated on the abscissa: pUbx, promoter of the Ubx gene, positive control; ras64B, negative control; E, eye enhancer of the white gene; pW, promoter of the white gene; codW, coding part of the white gene. “P” indicates that ChIP experiments were performed with a parental transgenic line indicated above diagram; “P∆UAS”deletion of the UAS promoter; “P∆Ts”deletion of the 702-bp SV40 terminator; “P∆EF1”deletion of the EF1 promoter. Vertical lines indicate standard deviations. All ChIP experiments were performed with chromatin isolated from heads of 2-to 5-day-old males from transgenic lines homozygous for the test construct. Background immunoprecipitation (the average normalized level after chromatin treatment with a nonspecific antibody) was subtracted from normalized specific ChIP signals (obtained with specific antibodies) at each position.Back to article page