Heterozygous mutations in the ABCC8 gene have been well-documented in leucine-sensitive neonatal hypoglycemia (OMIM:240800), transient neonatal diabetes mellitus 2 (OMIM:610374), and non-insulin-dependent diabetes mellitus (OMIM:125853), all exhibiting autosomal-dominant inheritance. Here, ABCC8 is linked to diabetes mellitus, transient neonatal, 2.