Additional file 4. Figure showing quantification of western blotting band intensities. Quantification of western blotting band intensities presented in Fig. 1c, 2a-c and 5a as well as Additional Files 3F, 5A-C and 9B. Combined data from at least three biological replicates. Bands were normalized to total lane protein and set relative to untreated parental cells, except for CDK6 in (J, L and M) that where set relative to fulvestrant-resistant cells. Statistical differences were determined with one-way ANOVA and Dunnett’s post-hoc test, * represents p-value ≤0.05, ** ≤0.01 and *** ≤0.001 compared to respective untreated parental control.