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 |
| RASA1 | 5q14.3 | 139150 | REa, A | Parkes Weber syndrome, 608355 (3) | 608355 | 3 |
| RASA1 | 5q14.3 | 139150 | REa, A | Capillary malformation-arteriovenous malformation, 608354 (3) | 608354 | 3 |
| RASA1 | 5q14.3 | 139150 | REa, A | Basal cell carcinoma, somatic, 605462 (3) | 605462 | 3 |