Gene: [09q22/HSN1] hereditary sensory neuropathy, type 1; [HSAN1 ]
| COM | The HSN1 gene was mapped to an 8-cM region flanked by D9S318 and D9S176 on 9q22.1-q22.3 (Nicholson-1996)." | 
| PAT | The main symptoms are: lightning pains, painless skin injuries and ulceration, distal sensory loss to sharp, hot and cold sensation with loss of distal reflexes, distal muscle wasting and progressing deafness." | 
| CAG | The locus for type III of hereditary sensory autonomic neuropathy (Riley-Day dysautonomia) is mapped to another region of the same chromosome: GEM:09q3/DYS." | 
| REF | PAT,FOG "Danon MJ, Carpenter S: Neurology, 35, 1226-1229, 1985 PAT,FOG "Heller IH, Robb P: Neurology, 5, 15-29, 1955 PAT,LOC,LIN "Nicholson GA &: Nature Genet, 13, 101-104, 1996 | 
| KEY | neu | 
| CLA | unknown, basic | 
| LOC | 09 q22.1-.3 | 
| MIM | MIM: 162400 | 
| SYN | HSAN1 | 
