Table 1.

Cell-specific features in BC200 RNA biosynthesis.

Cell line	Cellular levela		Half-life (h)b		Relative promoter activity of transfected pT1010BC∆A DNAc
	Northern blot	qRT-PCR	Endogenous	Exogenous
SK-BR-3	185 ± 15	39 ± 6	NDd	ND	9.7 ± 0.4
MCF10A	100 ± 26	100 ± 19	ND	7.9	100 ± 30
MDA-MB-231	178 ± 40	108 ± 3	ND	4.3	71 ± 13
HaCaT	206 ± 69	321 ± 118	26.6	6.9	105 ± 30
T47D	305 ± 82	946 ± 63	13.6	7.1	354 ± 121
HeLa	302 ± 101	862 ± 31	>200	12.5	178 ± 53
Hs578T	371 ± 142	870 ± 253	40.1	5.4	85 ± 13
MDA-MB-435	572 ± 152	1400 ± 288	4.2	4.1	196 ± 26
MCF7	658 ± 101	1413 ± 44	5.3	5.1	166 ± 13

^aCellular levels of BC200 RNA were calculated from the data of Fig. 5B (for Northern blot) and Fig. 5C (for qRT-PCR).

^bHalf-lives of BC200 RNA were determined by linear regression analysis from the data of Fig. 6A (for endogenous) and Fig. 6B (for exogenous).

^cRelative promoter activities were from the data of Fig. 8.

^dND, not determined.