This transcription factor plays a key role in pancreatic beta cell function and kidney development, so mutations in HNF1B cause maturity-onset diabetes of the young type 5 (MODY5) and kidney abnormalities.
Mutations of the transcription factor HNF1beta result in hereditary diabetes (MODY5), various urogenital malformations, and hypomagnesemia.
| 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 | 20 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Multiplex Ligation-Dependent Probe Amplification |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |