Distribution of TCF7L2 splice variants in subcutaneous fat (SF), visceral fat (VF), and liver. A: Structure of the TCF7L2 gene. Exon lengths are drawn approximately to scale. Arrows indicate the position and orientation of the primer pairs used
in capillary electrophoresis. Examined exons that are subject to alternative splicing are white. B: Schematic overview and relative expression level (mean ± SD) of the existing TCF7L2 mRNA variants at baseline. The + and − in variant names indicate existence of this exon.