A: SOS1 mutations found in oncogene-negative lung
adenocarcinomas and Noonan Syndrome.
B: NIH-3T3 cells expressing different SOS1 mutants were
imaged at 40×.
C: NIH-3T3 cells expressing SOS1 mutants were grown in
soft agar and imaged after 3 weeks at 6.3×. Colonies were quantified
using Cell Profiler. Images are representative of at least three biological
replicates, with three technical replicates each. Error bars show SEM from at
least three biological replicates. Western blots of SOS1
expression levels across all cells are shown in Figure 2B.
D: NIH-3T3 cells expressing different SOS1 mutants were injected into
4-week old Nu/J female mice. Tumor size was measured every three days using
calipers. Tumor volume was calculated as 0.5 × (longer diameter) ×
(shorter diameter)2. KRAS G12V mutant cells were
included as a positive control.