Figure 2. U17 snoRNA of Snhg3 locus complements the altered cholesterol trafficking in the I5 mutant.
(A) Structures of plasmid constructs for complementation are shown with exons as rectangles and snoRNAs as block arrows. (B) Sequences that are within U17 snoRNA m1/m2 elements are shown in gray boxes. Nucleotides mutated in the MUT+ construct shown in black. (C, D) Clonal lines expressing the various constructs were analyzed by qRT-PCR for expression of the murine U17 snoRNA (C) and Snhg3 mRNA (D), each normalized to β-actin. MUT+1 and MUT+2 are independent clonal lines expressing the MUT+ construct, in which both m1 and m2 elements are mutated. (E) Clones were assessed for esterification of PM-derived cholesterol. Data presented are mean + SE for 4 independent measurements. ***, ρ <0.001 for comparisons indicated
