| ID: 414805 | RT1 class I, locus M3, gene 2, pseudogene [Rattus norvegicus (Norway rat)] | Chromosome 20, NC_086038.1 (1347103..1348086, complement) | RT1-M3-2 |
| ID: 405647 | olfactory receptor family 11 subfamily B member 1, pseudogene 1 [Rattus norvegicus (Norway rat)] | Chromosome 20, NC_086038.1 (1344044..1344754, complement) | Olr1741-ps |
| ID: 294198 | olfactory receptor family 10 subfamily C member 1 [Rattus norvegicus (Norway rat)] | Chromosome 20, NC_086038.1 (1375847..1376785) | MOR263-3, Olr1744, Or7 |
| ID: 294197 | olfactory receptor family 11 subfamily A member 4 [Rattus norvegicus (Norway rat)] | Chromosome 20, NC_086038.1 (1359776..1360717, complement) | MOR121-1, Olr1743, Or8, ratchr20-1445925-1444984_ORF |
| ID: 294196 | olfactory receptor family 1 subfamily O member 2 [Rattus norvegicus (Norway rat)] | Chromosome 20, NC_086038.1 (1352630..1353559) | MOR156-2a, Olr1742, Or9, ratchr20-1437944-1438873_ORF |