Additional file 3.

Figure S1. Methylation pattern of recent Alu insertions. To determine the methylation status, the sequences corresponding to the first half of Alu elements plus its 5' flanking regions [31,32] were aligned to the Alu element sequences generated in this study. 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.

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de Andrade et al. BMC Genomics 2011 12:617   doi:10.1186/1471-2164-12-617