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. 2020 Jul 30;10:12824. doi: 10.1038/s41598-020-69752-y

Figure 1.

Figure 1

Interaction of S100A6 with actin in NIH3T3 fibroblasts. (A) Pull-down assay with the use of protein lysate from NIH3T3 cells and CNBr-Sepharose-S100A6 affinity resin (upper panel) or CNBr-Sepharose-empty resin (lower panel). Lanes: 1—input, 2—unbound fraction, 3—last wash, 4—first wash with 250 mM NaCl, 5—last wash with 250 mM NaCl, 6—elution. Fractions were analyzed by SDS-PAGE (10% gel) followed by immunoblotting developed with anti-actin antibodies. (B) Presence of S100A6–actin complexes in NIH3T3 fibroblasts analyzed by PLA assay. Control represents the experiment in which ligase was omitted. Complexes of examined proteins are visualized in red; cell nuclei, stained with DAPI, are in blue. Scale bar is 10 μm.