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Multiple sulfatase deficiency : ウィキペディア英語版 | Multiple sulfatase deficiency
Multiple sulfatase deficiency (also known as "Austin disease,"〔 and "Mucosulfatidosis") is a very rare autosomal recessive〔James, William; Berger, Timothy; Elston, Dirk (2005). ''Andrews' Diseases of the Skin: Clinical Dermatology''. (10th ed.). Saunders. ISBN 0-7216-2921-0.〕 lysosomal storage disease caused by a deficiency in multiple sulfatase enzymes, or in formylglycine-generating enzyme, which activates sulfatases.〔Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.〕 It is similar to mucopolysaccharidosis. ==Causes==
Multiple sulfatase deficiency is thought to be caused by any mutation of the SUMF1 gene which would render it's protein product, the formylglycine-generating enzyme (FGE), defective. These mutations result in inactive forms of FGE. This enzyme is required for posttranslational modification of a cysteine residue in the sulfatase enzyme active site into formylglycine, which is required for its proper function.
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