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Structural And Mechanistic Studies Of Alpha-Galactosidase A And Pharmacological Chaperones, Abigail Ida Guce
Structural And Mechanistic Studies Of Alpha-Galactosidase A And Pharmacological Chaperones, Abigail Ida Guce
Open Access Dissertations
Human α-galactosidase (α-GAL; EC 3.2.1.22) is a lysosomal enzyme that hydrolyzes of terminal alpha-linked galactosyl residue of glycosphingolipids. Deficiencies in α-GAL leads to Fabry disease, which is characterized by the build-up of globotriaosylceramide and other neutral substrates in cells, ultimately leading to a multi-systemic organ failure in patients. Hundreds of distinct mutations have been found in the α-GAL gene of Fabry disease patients. One current treatment for Fabry disease is Enzyme Replacement Therapy (ERT), which restores the missing α-GAL function. An alternative treatment, called Pharmacological Chaperone Therapy (PCT), utilizes a small molecule substrate analogue, 1-deoxygalactonojirimycin (DGJ). In order to better …