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. 2024 Oct 15;15:8887. doi: 10.1038/s41467-024-53277-3

Fig. 6. The human SCMC interacts with 14-3-3 and establishes conserved molecular association with CDC25B.

Fig. 6

a HEK-293F cells were co-transfected with expression vectors harboring Flag-MBP-tagged hMATER (or a blank vector for negative control), Strep-SUMO-tagged hTLE6, Strep-tagged hFLOPED, and HA-tagged 14-3-3γ. 60 h after transfection, cell lysates before (Input) or after immunoprecipitation with anti-Flag affinity agarose gel were immunoblotted for HA-tagged 14-3-3γ, Flag-MBP-tagged hMATER, Strep-SUMO-tagged hTLE6, and Strep-tagged hFLOPED. hMATER, human MATER. hTLE6, human TLE6. hFLOPED, human FLOPED. b Human zygotes were fixed, permeabilized, and incubated with antibodies to TLE6 and pan 14-3-3. The zygotes were imaged by confocal and differential interference contrast (DIC) microscopy. Scale bar, 10 μm. Colocalization of hTLE6 and pan 14-3-3 was presented in the merge. c The in situ interaction between hTLE6 and pan 14-3-3 in human zygotes and 8-cell-stage embryo was determined by proximity ligation assay (PLA) using antibodies to TLE6 and pan 14-3-3 or IgG for isotype control. Scale bar, 10 μm. d HEK-293F cells were co-transfected with expression vectors harboring Flag-MBP-tagged hMATER (or a blank vector for negative control), Strep-SUMO-tagged hTLE6, Strep-tagged hFLOPED, HA-tagged hCDC25B, and either HA-tagged 14-3-3γ or blank vector as denoted. 60 h after transfection, cell lysates before (Input) or after immunoprecipitation with anti-Flag affinity agarose gel were immunoblotted for HA-tagged hCDC25B, HA-tagged 14-3-3γ, Flag-MBP-tagged hMATER, Strep-SUMO-tagged hTLE6, and Strep-tagged hFLOPED. hCDC25B, human CDC25B. e Human zygotes were fixed, permeabilized, and incubated with antibodies to TLE6 and CDC25B. The zygotes were imaged by confocal and DIC microscopy. Scale bar, 10 μm. Colocalization of hTLE6 and hCDC25B was presented in the merge. f The in situ interaction between hTLE6 and hCDC25B in human GV oocytes and embryos was determined by PLA using antibodies to TLE6 and CDC25B or IgG for isotype control. Scale bar, 10 μm.