ClinGen Dosage Sensitivity Curation Page
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DSPP
- Curation Status: Complete
- id: ISCA-35176
- Date last evaluated: 2013-03-27
- Issue Type: ClinGen Gene Curation
- Gene type: protein-coding
- ClinGen: Search for information about DSPP at clinicalgenome.org
- Entrez Gene: https://www.ncbi.nlm.nih.gov/gene/1834
- OMIM: https://omim.org/entry/125485
- Gene Reviews: https://www.ncbi.nlm.nih.gov/books/NBK1434/?term=DSPP
- ClinGen Haploinsufficiency Score: 0
- ClinGen Triplosensitivity Score: 0
- ExAC pLI score: 0.001
- Haploinsufficiency score: 0
- Strength of Evidence (disclaimer): No evidence for dosage pathogenicity
Haploinsufficiency phenotype comments:
Several mutations have been identified in DSPP and are associated with autosomal dominant hereditary disorders of dentine formation (OMIM 125420, 125490, 125500). These have included missense and nonsense mutations at the first 3 amino acid positions, splicing mutations leading to skipping of exon 3, and frameshift mutations in exon 5 that lead to long stretches of hydrophobic residues (PMIDs: 18456718, 11175779, 22521702, 19029076, 20949630). However, these mutations have been found to cause a dominant-negative effect by von Marschall et al (2012, PMID:22392858). Haploinsufficiency has not been shown to be mechanism for any reported mutations.
- Triplosensitivity score: 0
- Strength of Evidence (disclaimer): No evidence for dosage pathogenicity
Triplosensitivity phenotype comment:
No focal duplications of DSPP have been reported.