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Figure 1: Representative Western blots of amnion and chorion-decidua (Ch-d) of six different tissues from non-labor patients undergoing elective cesarean section (C/S) and six labor patients after spontaneous vaginal delivery. Blots were probed with antisera specific to SRC-1, SRC-2, p300, and PCAF. Nuclear extracts from K562 cells (Santa Cruz) were used as a positive control for these proteins (+). Lanes marked 1–3 represent C/S tissues and 4–6 represent labor tissues. Typical Ponceau S staining, used as loading control, is shown in the lower panel.