PCSK1 and obesity due to melanocortin 4 receptor deficiency: However, the mutation rates of five obesity-related genes in few cancer tissues were >0.05 (i.e., LEPR in SKCM (0.11), UCEC (0.07), and LUSC (0.07) and PCSK1 in SKCM (0.09) and UCEC (0.06)).