1 => The disorder is placed on the map based on its association with a gene, but the underlying defect is not known
2 => The disorder has been placed on the map by linkage; no mutation has been found
3 => The molecular basis for the disorder is known; a mutation has been found in the gene
4 => A contiguous gene deletion or duplication syndrome, multiple genes are deleted or duplicated causing the phenotype
| Gene Symbol | Chromosomal Location | Gene MIM number | Mapping Method | Phenotype | Phenotype MIM number | Phenotype Mapping Key |
| GCK | 7p13 | 138079 | Psh, Fd | MODY, type II, 125851 (3) | 125851 | 3 |
| GCK | 7p13 | 138079 | Psh, Fd | Diabetes mellitus, noninsulin-dependent, late onset, 125853 (3) | 125853 | 3 |
| GCK | 7p13 | 138079 | Psh, Fd | Hyperinsulinemic hypoglycemia, familial, 3, 602485 (3) | 602485 | 3 |
| GCK | 7p13 | 138079 | Psh, Fd | Diabetes mellitus, permanent neonatal, 606176 (3) | 606176 | 3 |
| GCK | 11q13.1 | 603166 | REc | NA | NA | NA |