Figure 4(B) Expression of GFP, lncRNA-c1, GFP-lncRNA-c1, lncRNA-c2 and GFP-lncRNA-c2 (x-axis) in 8 day 4-OHT treated, miRNA depleted cells (KO) relative to ethanol treated (WT) mESC (y-axis) 24h hours post-transfection. Four independent biological replicates were treated, transfected and analyzed by RT-qPCR. Statistical significance represented on the figure based on comparison of KO/WT fold change in expression of GFP, with GFP-lncRNA-c1 and with GFP-lncRNA-c2, (paired two-tailed t-test p-value= 0.034 and 0.032 respectively) and based on comparison of KO/WT fold change in expression of GFP-lncRNAc1 with lncRNA-c1 and GFP-lncRNA-c2 with lncRNA-c2 (paired two-tailed t-test p-value= 0.012 and 0.018 respectively). Data is represented as mean±SD and Each point corresponds to the results of one independent biological replicate. Data information: For all RTqPCR analyses, transcript expression was first normalized by the amount of Act-β and PolII and next by the total amount of transfected vectors per cell estimated based on the levels of relative Neomycin expression. Each point corresponds to the results of one independent biological replicate. Statistics: NS- p-value> 0.05, *-p-value<0.05, **-p-value<0.01 and ***-p-value<0.001.(C) Expression of GFP-lncRNA-c1 ΔMRE relative to GFP-lncRNA-c1 (y-axis) in ethanol treated (WT, circles) or 4-OHT treated, miRNA-depleted cells (KO, triangles, x-axis). Four independent biological replicates were treated, transfected and analyzed by RTqPCR. Data is represented as mean±SD and Each point corresponds to the results of one independent biological replicate. Paired two-tailed t-test p-value= 0.0071 Data information: For all RTqPCR analyses, transcript expression was first normalized by the amount of Act-β and PolII and next by the total amount of transfected vectors per cell estimated based on the levels of relative Neomycin expression. Each point corresponds to the results of one independent biological replicate. Statistics: NS- p-value> 0.05, *-p-value<0.05, **-p-value<0.01 and ***-p-value<0.001.(F) Immunoblot analysis of GFP (GFP) in protein extracts from mESCs transfected with mock, BoxB(-30)-GFP and GFP expressing vectors. ACTIN-β (ACT-β) was used as an internal control. One representative blot is depicted (G) Fold-change (FC) in normalized expression of GFP-lncRNA-c1, GFP-lncRNA-c2 (noBoxB, circles) and BoxB(-30)-GFP-lncRNA-c1, BoxB (-30)-GFP-lncRNA-c2 (BoxB(-30), triangles) (x-axis) 4-OHT treated, miRNA depleted mESCs (KO) relative to ethanol treated mESCs (WT) (y-axis). Four independent biological replicates were analyzed. Data is represented as mean±SD and Each point corresponds to the results of one independent biological replicate. Paired two-tailed t-test p-value= 0.0494 for GFP-lncRNA-c1 and p-value=0.0355 for GPF-lncRNA-c2Data information: Uncropped blots used for assembly of panels F are provided in Figure 4 Source Data.(H) Immunoblot analysis of GFP (GFP) in protein extracts from mESCs transfected with mock, BoxB(+339)-GFP and GFP expressing vectors. ACTIN-β (ACT-β) was used as an internal control. One representative blot is depicted. (I) Fold-change (FC) in normalized expression of GFP-lncRNA-c1, GFP-lncRNA-c2 (noBoxB, circles) and BoxB(+339)-GFP-lncRNA-c1, BoxB (+339)-GFP-lncRNA-c2 (BoxB(+339), triangles) (x-axis) in 8 day 4-OHT treated, miRNA depleted mESCs (KO) relative to ethanol treated mESCs (WT) (y-axis). Four independent biological replicates analyzed.Data information: Uncropped blots used for assembly of panels H are provided in Figure 4 Source Data.