Xylosylprotein 4-beta-galactosyltransferase (XGPT) deficiency
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]
Synonyms and keywords: Ehler's Danlos syndrome - progeroid form
Overview
Xylosylprotein 4-beta-galactosyltransferase deficiency is a variant of Ehlers-Danlos syndrome
Pathophysiology
This disease is caused by mutation in the gene encoding xylosylprotein 4-beta-galactosyltransferase which catalyzes the second glycosyl transfer reaction in the assembly of the dermatan sulfate chain leading to defective synthesis of proteodermatan sulfate (PDS) .