MC2R and congenital adrenal hyperplasia: RNA-seq differential expression data showed a high abundance of MC2R, DLK1 transcripts in both the ART tissues (similar to control adrenals) and increased gonadal- specific INSL3, FATE1, HSD17B3 transcripts in TART tissue (similar to control testis), along with an increase in ZR-specific TSPAN12, SULTA1 transcripts in ART and CAH adrenals compared to control adrenals (Figure 4A).