The gene that is widely known as GLUT2 encodes a glucose transporter especially abundant in endocrine cells. Mutation are assiciated with the recessive Fanconi-Bickel syndrome and a disposition to type 2 diabetes.
| Clinic | Method | Carrier testing |
| Turnaround | 5 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Massive parallel sequencing |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Genomic sequencing of the entire coding region |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |