Table S1 - Clonal Analysis in Recurrent Astrocytic, Oligoastrocytic and Oligodendroglial Tumors Implicates IDH1- Mutation as Common Tumor Initiating Event

Summary of experimental data relating to all non- microdissected tumors with identical molecular alterations in primary and recurrent tumor. Surgery: designates the individual center of tumor operation; NL: Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands; B: Charité Universitätsmedizin, Berlin, Germany; HD: University Hospital, Heidelberg, Germany; #: number of all tumors analyzed; n (P): number of individual tumor pairs; P/R: identifies primary (P) and recurrent (R) tumor of each tumor pair; ID: internal tumor ID; tissue: abbreviation of diagnosis based on histology; het.: retained heterozygosity; LOH: loss of heterozygosity; pLOH: partial loss of heterozygosity; mut: mutated TP53/IDH1; wt: wild type TP53/IDH1; n.d.: not determined; IDH1 in detail: base exchange and codon position of IDH1- mutation; TP53 in detail: base exchange and codon position of TP53- mutation; SSCP: single strand conformation polymorphism analysis. (XLS)