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Table 2.

Locations of promoter-binding factors, TAF1 and POLR2B overlap functional promoters

	Factor binding sites^a	Promoter predictions overlapping sites^b	Tested promoters overlapping sites^c	Functional promoters overlapping sites^d
TAF1	426	248	177	143 (81%)
POLR2B	553	288	203	162 (80%)

a Number of binding sites for each factor

b Number of all promoter predictions that overlap the binding sites

c Number of binding sites tested by transient transfection reporter assay

d Number and percentage of overlapping fragments with promoter activity