1 => Disorder placed on map based on association with a gene; defect unknown
2 => Disorder placed by linkage; no mutation found
3 => Molecular basis known; mutation found in gene
4 => Contiguous gene deletion/duplication syndrome
| Gene Symbol | Chromosomal Location | Gene MIM number | Mapping Method | Phenotype | Phenotype MIM number | Phenotype Mapping Key |
| PTPRQ | 12q21.31 | 603317 | A, REc | Deafness, autosomal recessive 84A, 613391 (3) | 613391 | 3 |
| PTPRQ | 12q21.31 | 603317 | A, REc | Deafness, autosomal dominant 73, 617663 (3) | 617663 | 3 |