Table 1.

EC₅₀ values of inhibitors (μM) against different cell lines cultured in TBM^FCS

	WT	SKOHYG	DKO
Pyrazofurin	0.55 ± 0.02	0.42 ± 0.08	0.42 ± 0.03
5-Fluoroorotic acid	2.27 ± 0.14	1.92 ± 0.21	> 100
5-Fluorouracil	11.7 ± 0.52	8.45 ± 0.86	0.64 ± 0.08
5-Fluorouridine	> 100	> 100	> 100
5-Bromodeoxyuridine	> 100	> 100	> 100
6-Azauridine	> 100	> 100	> 100
Eflornithine	10.5 ± 0.30	7.49 ± 0.17	8.70 ± 0.26
Pentamidine	0.88 (× 10−3) ± 0.03	1.17 (× 10−3) ± 0.03	0.97 (× 10−3) ± 0.03

Results are means ± SEM of triplicate measurements.