Figure 6. PAC Identification of novel genetic changes.
(A) PAC detection of novel genetic changes in EGFR. PAC predicted skipping of the last four exons of GBM157 and the 5′ end of exon 17 in GBM172. Semi-quantitative PCR on genomic DNA confirmed the deletion in GBM157 (not shown). (B) PAC predicts skipping of exon 30 in the FCGBP gene in GBM60. (C) RT-PCR confirmed the FCGBP exon skipping event in GBM60; other tumors did not show this exon skipping. (D) Direct sequencing identified a single base change in EGFR in GBM172 (as predicted by PAC, see Fig. 6A). (E) Confirmation of a PAC predicted change in the TLE2 gene in GBM60. The nucleotide substitution overlaps with individual probes of the probe set.