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. 2018 Dec 21;9(2):491–503. doi: 10.1534/g3.118.200874

Figure 5.

Figure 5

Flag-SMN immunopurified lysates contain members of the known SMN complex and known substrates. (A) Flag-purified eluates were analyzed by label-free mass spectrometry. Proteins in the core SMN complex and known substrates were highly enriched in the SMN sample as compared with Ctrl. (B) Lysates from Oregon-R control (Ctrl) Drosophila embryos and those that exclusively express Flag-SMN (SMN) were immunopurified. Protein eluates were separated by SDS-PAGE and silver stained. Band identities were predicted by size. (C) Following transfection of CG2941-Flag in Drosophila S2 cells and immunoprecipitation (IP) of total cell lysates with anti-Flag beads, western analysis was carried out using anti-SMN antibodies. Mock transfected cells were analyzed in parallel. Co-purification of endogenous SMN was detected in the CG2941-Flag IP lane but not in the control lane (Mock).