KCNQ1 and obesity due to melanocortin 4 receptor deficiency: On the basis of these studies, researchers managed to identify tissues (adipose tissue, blood, skeletal muscle stem cells) and genes (ABCC3, GRB10, H19, MOGAT1, PDGFA, PRDM16, PRKCE, ATP10A, IRS1, JARID2, KCNQ1, ABCG1, FAM123C, FHL2, KLF14, PHOSPHO1, ZNF518B, ADCY5, CDKN1A, FTO, INS, KCNQ1, PDE7B, PDX1, PPARGC1A, SEPT9, SOCS2, TCF7L2) associated with obesity and related phenotypes (BMI, waist circumference).