LEP and obesity due to melanocortin 4 receptor deficiency: Also, proteins including Leptin (LEP), Phospholipase A2; membrane-associated (PLA2G2A), Follistatin-related protein 3 (FSTL3), and EGF-containing fibulin-like extracellular matrix protein-1 (EFEMP1) were significantly higher in the MOD subtype as they all associate strongly with obesity but did not differentiate between T2D cases and controls when adjusted for BMI.