Fig. S1.

Additional validations for expression of GAS6, PROS1, and AXL in the murine gingiva. (A) Schematic presentation (Left), H&E (Center), and outline of nuclei (Right) stainings of gingival cross-sections demarcating the epithelium (Ep) and lamina propria (LP) by dotted lines. (B) Quantification of Gas6 expression in the gingiva by RT-qPCR in WT and Gas6^−/− mice. (C) Western blot analysis showing the presence of PROS1 in the gingival epithelium and lamina propria. PROS1-expressing cell line was used as a positive control. Representative data of one of two independent experiments are shown. (D) Western blot analysis showing the presence of AXL in the gingival epithelium and lamina propria. Representative data of one of two independent experiments are shown.