No. of putative disease causing mutations: 2
No. of polymorphisms:
| Identifier | Nucleotide change | Mutation | Amino acid change/
Predicted consequence |
Location | Restriction site change | Phenotype | No of families with mutation | Country/ies of origin | Reference |
|---|---|---|---|---|---|---|---|---|---|
| sgsh.001 | c.904T>C | Missense | p.Ser298Pro | 1 | Sleat et al. 2009. Mol Cell Proteomics 8:1708-18 |
||||
| sgsh.002 | c.1075G>A | Missense | p.Glu355Lys | 1 | Sleat et al. 2009. Mol Cell Proteomics 8:1708-18 |
A single case that was diagnosed wth ANCL lacked SGSH protein and carried two heterozygos mutations in SGSH. These mutations are more usually found to cause MPSIIIA, and this case is more accurately decribed as late onset MPSIIIA.