Supplementary Figures 1 - 6 from Polyclonal Secondary FGFR2 Mutations Drive Acquired Resistance to FGFR Inhibition in Patients with FGFR2 Fusion–Positive Cholangiocarcinoma

Supplementary Figure S1. Confirmation of secondary point mutation in FGFR2-ZMYM4 allele. Supplementary Figure S2. Homology between FGFR2 and FGFR3 proteins. Supplementary Figure S3. FGFR2-OPTN fusion detected in all autopsy lesions. Supplementary Figure S4. FoundationOne analysis of autopsy lesions. Supplementary Figure S5. PTEN loss of heterozygosity (LOH) identified in Patient #2. Supplementary Figure S6. Mutational analysis of original resection specimen from Patient #2.