- Diabetes Genes
- Tests for Diabetes Subtypes
- Targeted Next Generation Sequencing
Targeted Next Generation Sequencing
Analysis of 69 Monogenic Diabetes Genes
The Exeter Molecular Genetics Laboratory offers a customised, targeted next generation sequencing capture assay for variant analysis of 69 known/putative monogenic diabetes genes and the m.3243 region of the mitochondrial genome. Analysis of a sub-set of genes is performed for paediatric and early adult onset diabetes (including MODY and insulin resistance disorders), neonatal diabetes and autoimmune forms of neonatal diabetes.
For patients with paediatric and early adult onset diabetes a panel of 39 genes is sequenced that includes 11 MODY genes (ABCC8, APPL1, GCK, HNF1A, HNF4A, INS, KCNJ11, NEUROD1, PDX1, RFX6 and ZFP57), 18 genes where diabetes occurs as part of a syndrome (CEL, CISD2, DCAF17, DNAJC3, DUT, DYRK1B, GATA4, GATA6, HNF1B, MANF, PAX6, PCBD1, PIK3R1, PPP1R15B, SLC29A3, TRMT10A, WFS1, ZBTB20), 9 genes where pathogenic variants cause diabetes through severe insulin resistance with or without partial lipodystrophy (AKT2, CIDEC, INSR, LIPE, LMNA, PLIN1, POLD1, PPARG and ZMPSTE24) and the mitochondrial variant m.3243A>G causing maternally inherited diabetes and deafness (MIDD).
A panel of 34 genes is sequenced for patients diagnosed with neonatal diabetes under the age of 6 months (ABCC8, AGPAT2, BSCL2, CISD2, CNOT1, COQ2, COQ9, EIF2S3, EIF2AK3, FOXP3, GATA4, GATA6, GCK, GLIS3, HNF1B, IER3IP1, IL2RA, INS, INSR, KCNJ11, LPL, LRBA, MNX1, NEUROD1, NEUROG3, NKX2-2, PDX1, PTF1A (coding and distal enhancer regions), RFX6, SLC19A2, SLC2A2, STAT3, WFS1 and ZFP57) and a panel of 15 genes is sequenced for patients with neonatal diabetes and autoimmune disease (AIRE, CD55, CTLA4, DOCK8, FOXP3, IL2RA, ITCH, JAK1, LRBA, NFKB1, SIRT1, SLC29A3, STAT1, STAT3, STAT5B and TNFAIP3).