Genetic and epigenetic variations contributed by Alu retrotransposition

BMC Genomics

Table 1 327 clusters comprised in 1,762 sequence reads.

Sample ID*	NC1	NC2	PA1	PA2	PA3	PA4	PA5	RL	Sum
sequenceRead_mapped	245,825	460,438	256,014	238,633	336,103	283,730	276,505	245,600	2,342.848
genomeRegion_mapped	31,871	47,071	31,683	33,760	41,485	33,937	33,052	36,957	289,816 (140,865**)
sequenceRead_Alu insertion	56	692	78	216	453	203	23	41	1,762
genomeRegion_Alu insertion	28	159	36	61	113	62	16	23	498 (327**)
Ratio (genomeRegion_AluInsertion/ genomeRegion_mapped)	0.09	0.34	0.11	0.18	0.27	0.18	0.05	0.06

*NC1: normal cerebellum; and NC2: normal 4^th ventricle lining tissue; PA1, PA2, PA3, PA4, and PA5: primary ependymoma tumor; RL: ependymoma tumor relapsed from PA3.
**Number of non-redundant clusters.

ISSN: 1471-2164