INSR and type 2 diabetes mellitus: In one study that investigated insulin receptor gene, the following mutations were found only in T2DM: 511C>A, 514T>G, 586, and 628T>A on exon 2, 694G>C, 680G>A on exon 3, 1627A>T on exon 8, AT>TG on intron 9, 2007C>C/T on exon 9, 2595C>C/T and 2669G>C/G on exon 13, 2706 and 2717C>G, 2752C>T, and 2753C>G on exon 14, and 3471T>A and 3516T>G on exon 19.