TABLE 1.

Concordance of the expression pattern of ABC transporter genes as a function of MYCN amplification or expression

H, high expression; L, low expression; NE, no expression; NS, no significant difference in expression; Y, concordance of expression profiles between Oberthuer's data set and TET21/N cells.

ABC genes	Cluster1 MYCN amplified	Cluster2/3 single copy MYCN	Tet (+) MYCN	Tet (−) MYCN	Concordance of expression
A1	L	H	L	H	Y
A6	L	H	L	H	Y
A9	L	H	NE	NE
A12	H	L	NE	NE
B6	H	L	NS	NS
B7	H	L	H	L	Y
C1	H	L	H	L	Y
C3	L	H	L	H	Y
C4	H	L	H	L	Y
D1	L	H	L	H	Y
E1	H	L	H	L	Y
F2	H	L	H	L	Y
G1	L	H	NE	NE
G2	L	H	H	L
G8	H	L	NE	NE