CKMT1B and obesity due to melanocortin 4 receptor deficiency: By analyzing RNA-seq data of VAT and SAT of 1,479 individuals (1,448 with obesity and 31 non-obese) of the Leipzig Obesity Biobank, we detected that all three genes of interest (CKB, CKMT1B and GATM) showed positive correlations with each other in visceral fat.