C-K Proximity ligation assays between INO80 and YY1 (C, D), INO80 and WDR5 (F, G), and INO80 and RuvBl2 (I, J) in proliferating MuSCs. Red signals indicate close proximity of INO80-V5 and the respective interacting protein. Nuclei were stained using DAPI (blue). Statistical evaluation of proximity ligation assays indicating increased interactions of INO80-V5 and YY1 (E, n = 3/3 animals, 3 independent wells per animal, two-tailed students t-test, *p<0.05) and of INO80-V5 to WDR5 (H, n = 2 (WT)/2 (KO) animals, 3 independent wells per animal, two-tailed students t-test, **p<0.01). No increase in proximity was detected between Ino80-V5 and Ruvbl2 (K, n = 2 (WT)/2 (KO) animals, 3 independent wells per animal, two-tailed students t-test, ns: not significant). Specificity of all analyzed signals was analyzed using single primary or single secondary antibodies in PLA assays. No signals were detected for these controls. Data are mean ± S.E.M. 