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Nat Genet. 2004 Jun;36(6):579-81. Epub 2004 May 9.

Mutations in GALNT3, encoding a protein involved in O-linked glycosylation, cause familial tumoral calcinosis.

Author information

1
Department of Dermatology, Rambam Medical Center, Haifa, Israel.

Abstract

Familial tumoral calcinosis (FTC; OMIM 211900) is a severe autosomal recessive metabolic disorder that manifests with hyperphosphatemia and massive calcium deposits in the skin and subcutaneous tissues. Using linkage analysis, we mapped the gene underlying FTC to 2q24-q31. This region includes the gene GALNT3, which encodes a glycosyltransferase responsible for initiating mucin-type O-glycosylation. Sequence analysis of GALNT3 identified biallelic deleterious mutations in all individuals with FTC, suggesting that defective post-translational modification underlies the disease.

PMID:
15133511
DOI:
10.1038/ng1358
[Indexed for MEDLINE]

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