Figure 2. Exon array analysis is a sensitive tool to identify MYB C-terminal rearrangement status.
A) Illustrations of MYB protein structure and MYB-NFIB fusion events in ACC. DBD, DNA binding domain; TAD, transcriptional activation domain; NRD, negative regulation domain. B) MYB exon intensity plot for 12 ACC tumor samples identifies variable expression of MYB C-terminal exons and validates MYB fusion status. Red line, MYB exon intensities in ACC tumor; Blue line, MYB exon intensities in matched normal tissue; Star depicts two false fusion-positive samples validated by FISH.