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. 2020 Sep 22;12(9):2715. doi: 10.3390/cancers12092715

Figure 2.

Figure 2

Identification of menin-associated proteins (MAPs) in breast cancer cells. (A) and (B) WES of BirA-Menin fusion proteins (A) and biotin-labeled proteins (B) in total lysates of BirA-MEN1 BioID engineered T47D or MCF-7 cells after incubating with or without doxycycline and biotin. (C) Schematic purification and proteomic identification of MAPs using LC–MS/MS. (D) Heatmap of the quantification of 35 MAPs commonly shared in T47D and MCF-7 cells. MAPs further verified by WES immunoassays were indicated by arrows. (E) Network analysis of 35 MAPs in MCF-7 cells. The distance between menin and MAPs represented the quantitative ratio of each MAP and menin. MAPs marked in blue were further assayed by WES. (F) Nuclear or cytoplasmic lysates of BirA-MEN1 BioID engineered T47D or MCF-7 cells after streptavidin beads pull-down were detected by WES with antibodies against menin, KMT2A, MED12, WAPL, GATA3, LaminA/C, or GAPDH. FL, full length; SP, spliced form.